/** * Licensed to the Apache Software Foundation (ASF) under one * or more contributor license agreements. See the NOTICE file * distributed with this work for additional information * regarding copyright ownership. The ASF licenses this file * to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance * with the License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. */ package org.apache.hadoop.hbase.regionserver; import java.io.FileNotFoundException; import java.io.IOException; import java.io.InterruptedIOException; import java.io.UncheckedIOException; import java.lang.reflect.InvocationTargetException; import java.net.BindException; import java.net.InetSocketAddress; import java.nio.ByteBuffer; import java.util.ArrayList; import java.util.Arrays; import java.util.Collections; import java.util.HashMap; import java.util.Iterator; import java.util.List; import java.util.Map; import java.util.Map.Entry; import java.util.NavigableMap; import java.util.Optional; import java.util.Set; import java.util.TreeSet; import java.util.concurrent.ConcurrentHashMap; import java.util.concurrent.ConcurrentMap; import java.util.concurrent.TimeUnit; import java.util.concurrent.atomic.AtomicBoolean; import java.util.concurrent.atomic.AtomicLong; import java.util.concurrent.atomic.LongAdder; import org.apache.commons.lang3.mutable.MutableObject; import org.apache.hadoop.conf.Configuration; import org.apache.hadoop.fs.FileSystem; import org.apache.hadoop.fs.Path; import org.apache.hadoop.hbase.ByteBufferExtendedCell; import org.apache.hadoop.hbase.CacheEvictionStats; import org.apache.hadoop.hbase.CacheEvictionStatsBuilder; import org.apache.hadoop.hbase.Cell; import org.apache.hadoop.hbase.CellScannable; import org.apache.hadoop.hbase.CellScanner; import org.apache.hadoop.hbase.CellUtil; import org.apache.hadoop.hbase.CompareOperator; import org.apache.hadoop.hbase.DoNotRetryIOException; import org.apache.hadoop.hbase.DroppedSnapshotException; import org.apache.hadoop.hbase.HBaseIOException; import org.apache.hadoop.hbase.HConstants; import org.apache.hadoop.hbase.MultiActionResultTooLarge; import org.apache.hadoop.hbase.NotServingRegionException; import org.apache.hadoop.hbase.PrivateCellUtil; import org.apache.hadoop.hbase.RegionTooBusyException; import org.apache.hadoop.hbase.Server; import org.apache.hadoop.hbase.ServerName; import org.apache.hadoop.hbase.TableName; import org.apache.hadoop.hbase.UnknownScannerException; import org.apache.hadoop.hbase.client.Append; import org.apache.hadoop.hbase.client.ConnectionUtils; import org.apache.hadoop.hbase.client.Delete; import org.apache.hadoop.hbase.client.Durability; import org.apache.hadoop.hbase.client.Get; import org.apache.hadoop.hbase.client.Increment; import org.apache.hadoop.hbase.client.Mutation; import org.apache.hadoop.hbase.client.Put; import org.apache.hadoop.hbase.client.RegionInfo; import org.apache.hadoop.hbase.client.RegionReplicaUtil; import org.apache.hadoop.hbase.client.Result; import org.apache.hadoop.hbase.client.Row; import org.apache.hadoop.hbase.client.RowMutations; import org.apache.hadoop.hbase.client.Scan; import org.apache.hadoop.hbase.client.TableDescriptor; import org.apache.hadoop.hbase.client.VersionInfoUtil; import org.apache.hadoop.hbase.conf.ConfigurationObserver; import org.apache.hadoop.hbase.exceptions.FailedSanityCheckException; import org.apache.hadoop.hbase.exceptions.OutOfOrderScannerNextException; import org.apache.hadoop.hbase.exceptions.ScannerResetException; import org.apache.hadoop.hbase.exceptions.UnknownProtocolException; import org.apache.hadoop.hbase.filter.ByteArrayComparable; import org.apache.hadoop.hbase.filter.Filter; import org.apache.hadoop.hbase.io.ByteBuffAllocator; import org.apache.hadoop.hbase.io.TimeRange; import org.apache.hadoop.hbase.io.hfile.BlockCache; import org.apache.hadoop.hbase.ipc.HBaseRPCErrorHandler; import org.apache.hadoop.hbase.ipc.HBaseRpcController; import org.apache.hadoop.hbase.ipc.PriorityFunction; import org.apache.hadoop.hbase.ipc.QosPriority; import org.apache.hadoop.hbase.ipc.RpcCallContext; import org.apache.hadoop.hbase.ipc.RpcCallback; import org.apache.hadoop.hbase.ipc.RpcScheduler; import org.apache.hadoop.hbase.ipc.RpcServer; import org.apache.hadoop.hbase.ipc.RpcServer.BlockingServiceAndInterface; import org.apache.hadoop.hbase.ipc.RpcServerFactory; import org.apache.hadoop.hbase.ipc.RpcServerInterface; import org.apache.hadoop.hbase.ipc.ServerNotRunningYetException; import org.apache.hadoop.hbase.ipc.ServerRpcController; import org.apache.hadoop.hbase.log.HBaseMarkers; import org.apache.hadoop.hbase.master.HMaster; import org.apache.hadoop.hbase.master.MasterRpcServices; import org.apache.hadoop.hbase.net.Address; import org.apache.hadoop.hbase.procedure2.RSProcedureCallable; import org.apache.hadoop.hbase.quotas.ActivePolicyEnforcement; import org.apache.hadoop.hbase.quotas.OperationQuota; import org.apache.hadoop.hbase.quotas.QuotaUtil; import org.apache.hadoop.hbase.quotas.RegionServerRpcQuotaManager; import org.apache.hadoop.hbase.quotas.RegionServerSpaceQuotaManager; import org.apache.hadoop.hbase.quotas.SpaceQuotaSnapshot; import org.apache.hadoop.hbase.quotas.SpaceViolationPolicyEnforcement; import org.apache.hadoop.hbase.regionserver.HRegion.RegionScannerImpl; import org.apache.hadoop.hbase.regionserver.LeaseManager.Lease; import org.apache.hadoop.hbase.regionserver.LeaseManager.LeaseStillHeldException; import org.apache.hadoop.hbase.regionserver.Region.Operation; import org.apache.hadoop.hbase.regionserver.ScannerContext.LimitScope; import org.apache.hadoop.hbase.regionserver.compactions.CompactionLifeCycleTracker; import org.apache.hadoop.hbase.regionserver.handler.AssignRegionHandler; import org.apache.hadoop.hbase.regionserver.handler.OpenMetaHandler; import org.apache.hadoop.hbase.regionserver.handler.OpenPriorityRegionHandler; import org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler; import org.apache.hadoop.hbase.regionserver.handler.UnassignRegionHandler; import org.apache.hadoop.hbase.regionserver.slowlog.SlowLogRecorder; import org.apache.hadoop.hbase.replication.ReplicationUtils; import org.apache.hadoop.hbase.replication.regionserver.RejectReplicationRequestStateChecker; import org.apache.hadoop.hbase.replication.regionserver.RejectRequestsFromClientStateChecker; import org.apache.hadoop.hbase.security.Superusers; import org.apache.hadoop.hbase.security.User; import org.apache.hadoop.hbase.security.access.AccessChecker; import org.apache.hadoop.hbase.security.access.NoopAccessChecker; import org.apache.hadoop.hbase.security.access.Permission; import org.apache.hadoop.hbase.security.access.ZKPermissionWatcher; import org.apache.hadoop.hbase.util.Bytes; import org.apache.hadoop.hbase.util.DNS; import org.apache.hadoop.hbase.util.EnvironmentEdgeManager; import org.apache.hadoop.hbase.util.Pair; import org.apache.hadoop.hbase.util.ServerRegionReplicaUtil; import org.apache.hadoop.hbase.wal.WAL; import org.apache.hadoop.hbase.wal.WALEdit; import org.apache.hadoop.hbase.wal.WALKey; import org.apache.hadoop.hbase.wal.WALSplitUtil; import org.apache.hadoop.hbase.wal.WALSplitUtil.MutationReplay; import org.apache.hadoop.hbase.zookeeper.ZKWatcher; import org.apache.yetus.audience.InterfaceAudience; import org.apache.zookeeper.KeeperException; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.apache.hbase.thirdparty.com.google.common.annotations.VisibleForTesting; import org.apache.hbase.thirdparty.com.google.common.cache.Cache; import org.apache.hbase.thirdparty.com.google.common.cache.CacheBuilder; import org.apache.hbase.thirdparty.com.google.common.collect.Lists; import org.apache.hbase.thirdparty.com.google.protobuf.ByteString; import org.apache.hbase.thirdparty.com.google.protobuf.Message; import org.apache.hbase.thirdparty.com.google.protobuf.RpcController; import org.apache.hbase.thirdparty.com.google.protobuf.ServiceException; import org.apache.hbase.thirdparty.com.google.protobuf.TextFormat; import org.apache.hbase.thirdparty.com.google.protobuf.UnsafeByteOperations; import org.apache.hbase.thirdparty.org.apache.commons.collections4.CollectionUtils; import org.apache.hadoop.hbase.shaded.protobuf.ProtobufUtil; import org.apache.hadoop.hbase.shaded.protobuf.RequestConverter; import org.apache.hadoop.hbase.shaded.protobuf.ResponseConverter; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.AdminService; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearCompactionQueuesRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearCompactionQueuesResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearRegionBlockCacheRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearRegionBlockCacheResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearSlowLogResponseRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ClearSlowLogResponses; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CloseRegionRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CloseRegionResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CompactRegionRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CompactRegionResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CompactionSwitchRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.CompactionSwitchResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ExecuteProceduresRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ExecuteProceduresResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.FlushRegionRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.FlushRegionResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetOnlineRegionRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetOnlineRegionResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionInfoResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionLoadRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetRegionLoadResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetServerInfoRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetServerInfoResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetStoreFileRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.GetStoreFileResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.OpenRegionRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.OpenRegionRequest.RegionOpenInfo; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.OpenRegionResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.OpenRegionResponse.RegionOpeningState; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.RemoteProcedureRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ReplicateWALEntryRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.ReplicateWALEntryResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.RollWALWriterRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.RollWALWriterResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.SlowLogResponseRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.SlowLogResponses; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.StopServerRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.StopServerResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.UpdateConfigurationRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.UpdateConfigurationResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.UpdateFavoredNodesRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.UpdateFavoredNodesResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.WALEntry; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.WarmupRegionRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.AdminProtos.WarmupRegionResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.Action; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.BulkLoadHFileRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.BulkLoadHFileRequest.FamilyPath; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.BulkLoadHFileResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CleanupBulkLoadRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CleanupBulkLoadResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ClientService; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.Condition; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CoprocessorServiceRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.CoprocessorServiceResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.GetRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.GetResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MultiRegionLoadStats; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MultiRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MultiResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutateRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutateResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutationProto; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.MutationProto.MutationType; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.PrepareBulkLoadRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.PrepareBulkLoadResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.RegionAction; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.RegionActionResult; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ResultOrException; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ScanRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClientProtos.ScanResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos; import org.apache.hadoop.hbase.shaded.protobuf.generated.ClusterStatusProtos.RegionLoad; import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.NameBytesPair; import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.NameInt64Pair; import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier; import org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionSpecifier.RegionSpecifierType; import org.apache.hadoop.hbase.shaded.protobuf.generated.MapReduceProtos.ScanMetrics; import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaSnapshotsRequest; import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaSnapshotsResponse; import org.apache.hadoop.hbase.shaded.protobuf.generated.QuotaProtos.GetSpaceQuotaSnapshotsResponse.TableQuotaSnapshot; import org.apache.hadoop.hbase.shaded.protobuf.generated.RPCProtos.RequestHeader; import org.apache.hadoop.hbase.shaded.protobuf.generated.TooSlowLog.SlowLogPayload; import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.BulkLoadDescriptor; import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.CompactionDescriptor; import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.FlushDescriptor; import org.apache.hadoop.hbase.shaded.protobuf.generated.WALProtos.RegionEventDescriptor; /** * Implements the regionserver RPC services. */ @InterfaceAudience.Private @SuppressWarnings("deprecation") public class RSRpcServices implements HBaseRPCErrorHandler, AdminService.BlockingInterface, ClientService.BlockingInterface, PriorityFunction, ConfigurationObserver { protected static final Logger LOG = LoggerFactory.getLogger(RSRpcServices.class); /** RPC scheduler to use for the region server. */ public static final String REGION_SERVER_RPC_SCHEDULER_FACTORY_CLASS = "hbase.region.server.rpc.scheduler.factory.class"; /** RPC scheduler to use for the master. */ public static final String MASTER_RPC_SCHEDULER_FACTORY_CLASS = "hbase.master.rpc.scheduler.factory.class"; /** * Minimum allowable time limit delta (in milliseconds) that can be enforced during scans. This * configuration exists to prevent the scenario where a time limit is specified to be so * restrictive that the time limit is reached immediately (before any cells are scanned). */ private static final String REGION_SERVER_RPC_MINIMUM_SCAN_TIME_LIMIT_DELTA = "hbase.region.server.rpc.minimum.scan.time.limit.delta"; /** * Default value of {@link RSRpcServices#REGION_SERVER_RPC_MINIMUM_SCAN_TIME_LIMIT_DELTA} */ private static final long DEFAULT_REGION_SERVER_RPC_MINIMUM_SCAN_TIME_LIMIT_DELTA = 10; /** * Number of rows in a batch operation above which a warning will be logged. */ static final String BATCH_ROWS_THRESHOLD_NAME = "hbase.rpc.rows.warning.threshold"; /** * Default value of {@link RSRpcServices#BATCH_ROWS_THRESHOLD_NAME} */ static final int BATCH_ROWS_THRESHOLD_DEFAULT = 5000; /* * Whether to reject rows with size > threshold defined by * {@link RSRpcServices#BATCH_ROWS_THRESHOLD_NAME} */ private static final String REJECT_BATCH_ROWS_OVER_THRESHOLD = "hbase.rpc.rows.size.threshold.reject"; /* * Default value of config {@link RSRpcServices#REJECT_BATCH_ROWS_OVER_THRESHOLD} */ private static final boolean DEFAULT_REJECT_BATCH_ROWS_OVER_THRESHOLD = false; // Request counter. (Includes requests that are not serviced by regions.) // Count only once for requests with multiple actions like multi/caching-scan/replayBatch final LongAdder requestCount = new LongAdder(); // Request counter for rpc get final LongAdder rpcGetRequestCount = new LongAdder(); // Request counter for rpc scan final LongAdder rpcScanRequestCount = new LongAdder(); // Request counter for rpc multi final LongAdder rpcMultiRequestCount = new LongAdder(); // Request counter for rpc mutate final LongAdder rpcMutateRequestCount = new LongAdder(); // Server to handle client requests. final RpcServerInterface rpcServer; final InetSocketAddress isa; @VisibleForTesting protected final HRegionServer regionServer; private final long maxScannerResultSize; // The reference to the priority extraction function private final PriorityFunction priority; private ScannerIdGenerator scannerIdGenerator; private final ConcurrentMap<String, RegionScannerHolder> scanners = new ConcurrentHashMap<>(); // Hold the name of a closed scanner for a while. This is used to keep compatible for old clients // which may send next or close request to a region scanner which has already been exhausted. The // entries will be removed automatically after scannerLeaseTimeoutPeriod. private final Cache<String, String> closedScanners; /** * The lease timeout period for client scanners (milliseconds). */ private final int scannerLeaseTimeoutPeriod; /** * The RPC timeout period (milliseconds) */ private final int rpcTimeout; /** * The minimum allowable delta to use for the scan limit */ private final long minimumScanTimeLimitDelta; /** * Row size threshold for multi requests above which a warning is logged */ private final int rowSizeWarnThreshold; /* * Whether we should reject requests with very high no of rows i.e. beyond threshold * defined by rowSizeWarnThreshold */ private final boolean rejectRowsWithSizeOverThreshold; final AtomicBoolean clearCompactionQueues = new AtomicBoolean(false); private AccessChecker accessChecker; private ZKPermissionWatcher zkPermissionWatcher; /** * Services launched in RSRpcServices. By default they are on but you can use the below * booleans to selectively enable/disable either Admin or Client Service (Rare is the case * where you would ever turn off one or the other). */ public static final String REGIONSERVER_ADMIN_SERVICE_CONFIG = "hbase.regionserver.admin.executorService"; public static final String REGIONSERVER_CLIENT_SERVICE_CONFIG = "hbase.regionserver.client.executorService"; /** * An Rpc callback for closing a RegionScanner. */ private static final class RegionScannerCloseCallBack implements RpcCallback { private final RegionScanner scanner; public RegionScannerCloseCallBack(RegionScanner scanner) { this.scanner = scanner; } @Override public void run() throws IOException { this.scanner.close(); } } /** * An Rpc callback for doing shipped() call on a RegionScanner. */ private class RegionScannerShippedCallBack implements RpcCallback { private final String scannerName; private final Shipper shipper; private final Lease lease; public RegionScannerShippedCallBack(String scannerName, Shipper shipper, Lease lease) { this.scannerName = scannerName; this.shipper = shipper; this.lease = lease; } @Override public void run() throws IOException { this.shipper.shipped(); // We're done. On way out re-add the above removed lease. The lease was temp removed for this // Rpc call and we are at end of the call now. Time to add it back. if (scanners.containsKey(scannerName)) { if (lease != null) { regionServer.getLeaseManager().addLease(lease); } } } } /** * An RpcCallBack that creates a list of scanners that needs to perform callBack operation on * completion of multiGets. */ static class RegionScannersCloseCallBack implements RpcCallback { private final List<RegionScanner> scanners = new ArrayList<>(); public void addScanner(RegionScanner scanner) { this.scanners.add(scanner); } @Override public void run() { for (RegionScanner scanner : scanners) { try { scanner.close(); } catch (IOException e) { LOG.error("Exception while closing the scanner " + scanner, e); } } } } /** * Holder class which holds the RegionScanner, nextCallSeq and RpcCallbacks together. */ private static final class RegionScannerHolder { private final AtomicLong nextCallSeq = new AtomicLong(0); private final String scannerName; private final RegionScanner s; private final HRegion r; private final RpcCallback closeCallBack; private final RpcCallback shippedCallback; private byte[] rowOfLastPartialResult; private boolean needCursor; public RegionScannerHolder(String scannerName, RegionScanner s, HRegion r, RpcCallback closeCallBack, RpcCallback shippedCallback, boolean needCursor) { this.scannerName = scannerName; this.s = s; this.r = r; this.closeCallBack = closeCallBack; this.shippedCallback = shippedCallback; this.needCursor = needCursor; } public long getNextCallSeq() { return nextCallSeq.get(); } public boolean incNextCallSeq(long currentSeq) { // Use CAS to prevent multiple scan request running on the same scanner. return nextCallSeq.compareAndSet(currentSeq, currentSeq + 1); } } /** * Instantiated as a scanner lease. If the lease times out, the scanner is * closed */ private class ScannerListener implements LeaseListener { private final String scannerName; ScannerListener(final String n) { this.scannerName = n; } @Override public void leaseExpired() { RegionScannerHolder rsh = scanners.remove(this.scannerName); if (rsh != null) { RegionScanner s = rsh.s; LOG.info("Scanner " + this.scannerName + " lease expired on region " + s.getRegionInfo().getRegionNameAsString()); HRegion region = null; try { region = regionServer.getRegion(s.getRegionInfo().getRegionName()); if (region != null && region.getCoprocessorHost() != null) { region.getCoprocessorHost().preScannerClose(s); } } catch (IOException e) { LOG.error("Closing scanner for " + s.getRegionInfo().getRegionNameAsString(), e); } finally { try { s.close(); if (region != null && region.getCoprocessorHost() != null) { region.getCoprocessorHost().postScannerClose(s); } } catch (IOException e) { LOG.error("Closing scanner for " + s.getRegionInfo().getRegionNameAsString(), e); } } } else { LOG.warn("Scanner " + this.scannerName + " lease expired, but no related" + " scanner found, hence no chance to close that related scanner!"); } } } private static ResultOrException getResultOrException(final ClientProtos.Result r, final int index){ return getResultOrException(ResponseConverter.buildActionResult(r), index); } private static ResultOrException getResultOrException(final Exception e, final int index) { return getResultOrException(ResponseConverter.buildActionResult(e), index); } private static ResultOrException getResultOrException( final ResultOrException.Builder builder, final int index) { return builder.setIndex(index).build(); } /** * Checks for the following pre-checks in order: * <ol> * <li>RegionServer is running</li> * <li>If authorization is enabled, then RPC caller has ADMIN permissions</li> * </ol> * @param requestName name of rpc request. Used in reporting failures to provide context. * @throws ServiceException If any of the above listed pre-check fails. */ private void rpcPreCheck(String requestName) throws ServiceException { try { checkOpen(); requirePermission(requestName, Permission.Action.ADMIN); } catch (IOException ioe) { throw new ServiceException(ioe); } } /** * Starts the nonce operation for a mutation, if needed. * @param mutation Mutation. * @param nonceGroup Nonce group from the request. * @return whether to proceed this mutation. */ private boolean startNonceOperation(final MutationProto mutation, long nonceGroup) throws IOException { if (regionServer.nonceManager == null || !mutation.hasNonce()) return true; boolean canProceed = false; try { canProceed = regionServer.nonceManager.startOperation( nonceGroup, mutation.getNonce(), regionServer); } catch (InterruptedException ex) { throw new InterruptedIOException("Nonce start operation interrupted"); } return canProceed; } /** * Ends nonce operation for a mutation, if needed. * @param mutation Mutation. * @param nonceGroup Nonce group from the request. Always 0 in initial implementation. * @param success Whether the operation for this nonce has succeeded. */ private void endNonceOperation(final MutationProto mutation, long nonceGroup, boolean success) { if (regionServer.nonceManager != null && mutation.hasNonce()) { regionServer.nonceManager.endOperation(nonceGroup, mutation.getNonce(), success); } } private boolean isClientCellBlockSupport(RpcCallContext context) { return context != null && context.isClientCellBlockSupported(); } private void addResult(final MutateResponse.Builder builder, final Result result, final HBaseRpcController rpcc, boolean clientCellBlockSupported) { if (result == null) return; if (clientCellBlockSupported) { builder.setResult(ProtobufUtil.toResultNoData(result)); rpcc.setCellScanner(result.cellScanner()); } else { ClientProtos.Result pbr = ProtobufUtil.toResult(result); builder.setResult(pbr); } } private void addResults(ScanResponse.Builder builder, List<Result> results, HBaseRpcController controller, boolean isDefaultRegion, boolean clientCellBlockSupported) { builder.setStale(!isDefaultRegion); if (results.isEmpty()) { return; } if (clientCellBlockSupported) { for (Result res : results) { builder.addCellsPerResult(res.size()); builder.addPartialFlagPerResult(res.mayHaveMoreCellsInRow()); } controller.setCellScanner(CellUtil.createCellScanner(results)); } else { for (Result res : results) { ClientProtos.Result pbr = ProtobufUtil.toResult(res); builder.addResults(pbr); } } } /** * Mutate a list of rows atomically. * @param cellScanner if non-null, the mutation data -- the Cell content. */ private boolean checkAndRowMutate(final HRegion region, final List<ClientProtos.Action> actions, final CellScanner cellScanner, byte[] row, byte[] family, byte[] qualifier, CompareOperator op, ByteArrayComparable comparator, Filter filter, TimeRange timeRange, RegionActionResult.Builder builder, ActivePolicyEnforcement spaceQuotaEnforcement) throws IOException { int countOfCompleteMutation = 0; try { if (!region.getRegionInfo().isMetaRegion()) { regionServer.getMemStoreFlusher().reclaimMemStoreMemory(); } RowMutations rm = null; int i = 0; ClientProtos.ResultOrException.Builder resultOrExceptionOrBuilder = ClientProtos.ResultOrException.newBuilder(); for (ClientProtos.Action action: actions) { if (action.hasGet()) { throw new DoNotRetryIOException("Atomic put and/or delete only, not a Get=" + action.getGet()); } MutationType type = action.getMutation().getMutateType(); if (rm == null) { rm = new RowMutations(action.getMutation().getRow().toByteArray(), actions.size()); } switch (type) { case PUT: Put put = ProtobufUtil.toPut(action.getMutation(), cellScanner); ++countOfCompleteMutation; checkCellSizeLimit(region, put); spaceQuotaEnforcement.getPolicyEnforcement(region).check(put); rm.add(put); break; case DELETE: Delete del = ProtobufUtil.toDelete(action.getMutation(), cellScanner); ++countOfCompleteMutation; spaceQuotaEnforcement.getPolicyEnforcement(region).check(del); rm.add(del); break; default: throw new DoNotRetryIOException("Atomic put and/or delete only, not " + type.name()); } // To unify the response format with doNonAtomicRegionMutation and read through client's // AsyncProcess we have to add an empty result instance per operation resultOrExceptionOrBuilder.clear(); resultOrExceptionOrBuilder.setIndex(i++); builder.addResultOrException( resultOrExceptionOrBuilder.build()); } if (filter != null) { return region.checkAndRowMutate(row, filter, timeRange, rm); } else { return region.checkAndRowMutate(row, family, qualifier, op, comparator, timeRange, rm); } } finally { // Currently, the checkAndMutate isn't supported by batch so it won't mess up the cell scanner // even if the malformed cells are not skipped. for (int i = countOfCompleteMutation; i < actions.size(); ++i) { skipCellsForMutation(actions.get(i), cellScanner); } } } /** * Execute an append mutation. * * @return result to return to client if default operation should be * bypassed as indicated by RegionObserver, null otherwise */ private Result append(final HRegion region, final OperationQuota quota, final MutationProto mutation, final CellScanner cellScanner, long nonceGroup, ActivePolicyEnforcement spaceQuota) throws IOException { long before = EnvironmentEdgeManager.currentTime(); Append append = ProtobufUtil.toAppend(mutation, cellScanner); checkCellSizeLimit(region, append); spaceQuota.getPolicyEnforcement(region).check(append); quota.addMutation(append); Result r = null; if (region.getCoprocessorHost() != null) { r = region.getCoprocessorHost().preAppend(append); } if (r == null) { boolean canProceed = startNonceOperation(mutation, nonceGroup); boolean success = false; try { long nonce = mutation.hasNonce() ? mutation.getNonce() : HConstants.NO_NONCE; if (canProceed) { r = region.append(append, nonceGroup, nonce); } else { // convert duplicate append to get List<Cell> results = region.get(toGet(append), false, nonceGroup, nonce); r = Result.create(results); } success = true; } finally { if (canProceed) { endNonceOperation(mutation, nonceGroup, success); } } if (region.getCoprocessorHost() != null) { r = region.getCoprocessorHost().postAppend(append, r); } } if (regionServer.getMetrics() != null) { regionServer.getMetrics().updateAppend( region.getTableDescriptor().getTableName(), EnvironmentEdgeManager.currentTime() - before); } return r == null ? Result.EMPTY_RESULT : r; } /** * Execute an increment mutation. */ private Result increment(final HRegion region, final OperationQuota quota, final MutationProto mutation, final CellScanner cells, long nonceGroup, ActivePolicyEnforcement spaceQuota) throws IOException { long before = EnvironmentEdgeManager.currentTime(); Increment increment = ProtobufUtil.toIncrement(mutation, cells); checkCellSizeLimit(region, increment); spaceQuota.getPolicyEnforcement(region).check(increment); quota.addMutation(increment); Result r = null; if (region.getCoprocessorHost() != null) { r = region.getCoprocessorHost().preIncrement(increment); } if (r == null) { boolean canProceed = startNonceOperation(mutation, nonceGroup); boolean success = false; try { long nonce = mutation.hasNonce() ? mutation.getNonce() : HConstants.NO_NONCE; if (canProceed) { r = region.increment(increment, nonceGroup, nonce); } else { // convert duplicate increment to get List<Cell> results = region.get(toGet(increment), false, nonceGroup, nonce); r = Result.create(results); } success = true; } finally { if (canProceed) { endNonceOperation(mutation, nonceGroup, success); } } if (region.getCoprocessorHost() != null) { r = region.getCoprocessorHost().postIncrement(increment, r); } } final MetricsRegionServer metricsRegionServer = regionServer.getMetrics(); if (metricsRegionServer != null) { metricsRegionServer.updateIncrement( region.getTableDescriptor().getTableName(), EnvironmentEdgeManager.currentTime() - before); } return r == null ? Result.EMPTY_RESULT : r; } private static Get toGet(final Mutation mutation) throws IOException { if(!(mutation instanceof Increment) && !(mutation instanceof Append)) { throw new AssertionError("mutation must be a instance of Increment or Append"); } Get get = new Get(mutation.getRow()); CellScanner cellScanner = mutation.cellScanner(); while (!cellScanner.advance()) { Cell cell = cellScanner.current(); get.addColumn(CellUtil.cloneFamily(cell), CellUtil.cloneQualifier(cell)); } if (mutation instanceof Increment) { // Increment Increment increment = (Increment) mutation; get.setTimeRange(increment.getTimeRange().getMin(), increment.getTimeRange().getMax()); } else { // Append Append append = (Append) mutation; get.setTimeRange(append.getTimeRange().getMin(), append.getTimeRange().getMax()); } for (Entry<String, byte[]> entry : mutation.getAttributesMap().entrySet()) { get.setAttribute(entry.getKey(), entry.getValue()); } return get; } /** * Run through the regionMutation <code>rm</code> and per Mutation, do the work, and then when * done, add an instance of a {@link ResultOrException} that corresponds to each Mutation. * @param cellsToReturn Could be null. May be allocated in this method. This is what this * method returns as a 'result'. * @param closeCallBack the callback to be used with multigets * @param context the current RpcCallContext * @return Return the <code>cellScanner</code> passed */ private List<CellScannable> doNonAtomicRegionMutation(final HRegion region, final OperationQuota quota, final RegionAction actions, final CellScanner cellScanner, final RegionActionResult.Builder builder, List<CellScannable> cellsToReturn, long nonceGroup, final RegionScannersCloseCallBack closeCallBack, RpcCallContext context, ActivePolicyEnforcement spaceQuotaEnforcement) { // Gather up CONTIGUOUS Puts and Deletes in this mutations List. Idea is that rather than do // one at a time, we instead pass them in batch. Be aware that the corresponding // ResultOrException instance that matches each Put or Delete is then added down in the // doNonAtomicBatchOp call. We should be staying aligned though the Put and Delete are // deferred/batched List<ClientProtos.Action> mutations = null; long maxQuotaResultSize = Math.min(maxScannerResultSize, quota.getReadAvailable()); IOException sizeIOE = null; Object lastBlock = null; ClientProtos.ResultOrException.Builder resultOrExceptionBuilder = ResultOrException.newBuilder(); boolean hasResultOrException = false; for (ClientProtos.Action action : actions.getActionList()) { hasResultOrException = false; resultOrExceptionBuilder.clear(); try { Result r = null; if (context != null && context.isRetryImmediatelySupported() && (context.getResponseCellSize() > maxQuotaResultSize || context.getResponseBlockSize() + context.getResponseExceptionSize() > maxQuotaResultSize)) { // We're storing the exception since the exception and reason string won't // change after the response size limit is reached. if (sizeIOE == null ) { // We don't need the stack un-winding do don't throw the exception. // Throwing will kill the JVM's JIT. // // Instead just create the exception and then store it. sizeIOE = new MultiActionResultTooLarge("Max size exceeded" + " CellSize: " + context.getResponseCellSize() + " BlockSize: " + context.getResponseBlockSize()); // Only report the exception once since there's only one request that // caused the exception. Otherwise this number will dominate the exceptions count. rpcServer.getMetrics().exception(sizeIOE); } // Now that there's an exception is known to be created // use it for the response. // // This will create a copy in the builder. NameBytesPair pair = ResponseConverter.buildException(sizeIOE); resultOrExceptionBuilder.setException(pair); context.incrementResponseExceptionSize(pair.getSerializedSize()); resultOrExceptionBuilder.setIndex(action.getIndex()); builder.addResultOrException(resultOrExceptionBuilder.build()); skipCellsForMutation(action, cellScanner); continue; } if (action.hasGet()) { long before = EnvironmentEdgeManager.currentTime(); ClientProtos.Get pbGet = action.getGet(); // An asynchbase client, https://github.com/OpenTSDB/asynchbase, starts by trying to do // a get closest before. Throwing the UnknownProtocolException signals it that it needs // to switch and do hbase2 protocol (HBase servers do not tell clients what versions // they are; its a problem for non-native clients like asynchbase. HBASE-20225. if (pbGet.hasClosestRowBefore() && pbGet.getClosestRowBefore()) { throw new UnknownProtocolException("Is this a pre-hbase-1.0.0 or asynchbase client? " + "Client is invoking getClosestRowBefore removed in hbase-2.0.0 replaced by " + "reverse Scan."); } try { Get get = ProtobufUtil.toGet(pbGet); if (context != null) { r = get(get, (region), closeCallBack, context); } else { r = region.get(get); } } finally { final MetricsRegionServer metricsRegionServer = regionServer.getMetrics(); if (metricsRegionServer != null) { metricsRegionServer.updateGet( region.getTableDescriptor().getTableName(), EnvironmentEdgeManager.currentTime() - before); } } } else if (action.hasServiceCall()) { hasResultOrException = true; Message result = execServiceOnRegion(region, action.getServiceCall()); ClientProtos.CoprocessorServiceResult.Builder serviceResultBuilder = ClientProtos.CoprocessorServiceResult.newBuilder(); resultOrExceptionBuilder.setServiceResult( serviceResultBuilder.setValue( serviceResultBuilder.getValueBuilder() .setName(result.getClass().getName()) // TODO: Copy!!! .setValue(UnsafeByteOperations.unsafeWrap(result.toByteArray())))); } else if (action.hasMutation()) { MutationType type = action.getMutation().getMutateType(); if (type != MutationType.PUT && type != MutationType.DELETE && mutations != null && !mutations.isEmpty()) { // Flush out any Puts or Deletes already collected. doNonAtomicBatchOp(builder, region, quota, mutations, cellScanner, spaceQuotaEnforcement); mutations.clear(); } switch (type) { case APPEND: r = append(region, quota, action.getMutation(), cellScanner, nonceGroup, spaceQuotaEnforcement); break; case INCREMENT: r = increment(region, quota, action.getMutation(), cellScanner, nonceGroup, spaceQuotaEnforcement); break; case PUT: case DELETE: // Collect the individual mutations and apply in a batch if (mutations == null) { mutations = new ArrayList<>(actions.getActionCount()); } mutations.add(action); break; default: throw new DoNotRetryIOException("Unsupported mutate type: " + type.name()); } } else { throw new HBaseIOException("Unexpected Action type"); } if (r != null) { ClientProtos.Result pbResult = null; if (isClientCellBlockSupport(context)) { pbResult = ProtobufUtil.toResultNoData(r); // Hard to guess the size here. Just make a rough guess. if (cellsToReturn == null) { cellsToReturn = new ArrayList<>(); } cellsToReturn.add(r); } else { pbResult = ProtobufUtil.toResult(r); } lastBlock = addSize(context, r, lastBlock); hasResultOrException = true; resultOrExceptionBuilder.setResult(pbResult); } // Could get to here and there was no result and no exception. Presumes we added // a Put or Delete to the collecting Mutations List for adding later. In this // case the corresponding ResultOrException instance for the Put or Delete will be added // down in the doNonAtomicBatchOp method call rather than up here. } catch (IOException ie) { rpcServer.getMetrics().exception(ie); hasResultOrException = true; NameBytesPair pair = ResponseConverter.buildException(ie); resultOrExceptionBuilder.setException(pair); context.incrementResponseExceptionSize(pair.getSerializedSize()); } if (hasResultOrException) { // Propagate index. resultOrExceptionBuilder.setIndex(action.getIndex()); builder.addResultOrException(resultOrExceptionBuilder.build()); } } // Finish up any outstanding mutations if (!CollectionUtils.isEmpty(mutations)) { doNonAtomicBatchOp(builder, region, quota, mutations, cellScanner, spaceQuotaEnforcement); } return cellsToReturn; } private void checkCellSizeLimit(final HRegion r, final Mutation m) throws IOException { if (r.maxCellSize > 0) { CellScanner cells = m.cellScanner(); while (cells.advance()) { int size = PrivateCellUtil.estimatedSerializedSizeOf(cells.current()); if (size > r.maxCellSize) { String msg = "Cell with size " + size + " exceeds limit of " + r.maxCellSize + " bytes"; LOG.debug(msg); throw new DoNotRetryIOException(msg); } } } } private void doAtomicBatchOp(final RegionActionResult.Builder builder, final HRegion region, final OperationQuota quota, final List<ClientProtos.Action> mutations, final CellScanner cells, ActivePolicyEnforcement spaceQuotaEnforcement) throws IOException { // Just throw the exception. The exception will be caught and then added to region-level // exception for RegionAction. Leaving the null to action result is ok since the null // result is viewed as failure by hbase client. And the region-lever exception will be used // to replaced the null result. see AsyncRequestFutureImpl#receiveMultiAction and // AsyncBatchRpcRetryingCaller#onComplete for more details. doBatchOp(builder, region, quota, mutations, cells, spaceQuotaEnforcement, true); } private void doNonAtomicBatchOp(final RegionActionResult.Builder builder, final HRegion region, final OperationQuota quota, final List<ClientProtos.Action> mutations, final CellScanner cells, ActivePolicyEnforcement spaceQuotaEnforcement) { try { doBatchOp(builder, region, quota, mutations, cells, spaceQuotaEnforcement, false); } catch (IOException e) { // Set the exception for each action. The mutations in same RegionAction are group to // different batch and then be processed individually. Hence, we don't set the region-level // exception here for whole RegionAction. for (Action mutation : mutations) { builder.addResultOrException(getResultOrException(e, mutation.getIndex())); } } } /** * Execute a list of Put/Delete mutations. * * @param builder * @param region * @param mutations */ private void doBatchOp(final RegionActionResult.Builder builder, final HRegion region, final OperationQuota quota, final List<ClientProtos.Action> mutations, final CellScanner cells, ActivePolicyEnforcement spaceQuotaEnforcement, boolean atomic) throws IOException { Mutation[] mArray = new Mutation[mutations.size()]; long before = EnvironmentEdgeManager.currentTime(); boolean batchContainsPuts = false, batchContainsDelete = false; try { /** HBASE-17924 * mutationActionMap is a map to map the relation between mutations and actions * since mutation array may have been reoredered.In order to return the right * result or exception to the corresponding actions, We need to know which action * is the mutation belong to. We can't sort ClientProtos.Action array, since they * are bonded to cellscanners. */ Map<Mutation, ClientProtos.Action> mutationActionMap = new HashMap<>(); int i = 0; for (ClientProtos.Action action: mutations) { if (action.hasGet()) { throw new DoNotRetryIOException("Atomic put and/or delete only, not a Get=" + action.getGet()); } MutationProto m = action.getMutation(); Mutation mutation; if (m.getMutateType() == MutationType.PUT) { mutation = ProtobufUtil.toPut(m, cells); batchContainsPuts = true; } else { mutation = ProtobufUtil.toDelete(m, cells); batchContainsDelete = true; } mutationActionMap.put(mutation, action); mArray[i++] = mutation; checkCellSizeLimit(region, mutation); // Check if a space quota disallows this mutation spaceQuotaEnforcement.getPolicyEnforcement(region).check(mutation); quota.addMutation(mutation); } if (!region.getRegionInfo().isMetaRegion()) { regionServer.getMemStoreFlusher().reclaimMemStoreMemory(); } // HBASE-17924 // Sort to improve lock efficiency for non-atomic batch of operations. If atomic // order is preserved as its expected from the client if (!atomic) { Arrays.sort(mArray, (v1, v2) -> Row.COMPARATOR.compare(v1, v2)); } OperationStatus[] codes = region.batchMutate(mArray, atomic, HConstants.NO_NONCE, HConstants.NO_NONCE); for (i = 0; i < codes.length; i++) { Mutation currentMutation = mArray[i]; ClientProtos.Action currentAction = mutationActionMap.get(currentMutation); int index = currentAction.hasIndex() || !atomic ? currentAction.getIndex() : i; Exception e = null; switch (codes[i].getOperationStatusCode()) { case BAD_FAMILY: e = new NoSuchColumnFamilyException(codes[i].getExceptionMsg()); builder.addResultOrException(getResultOrException(e, index)); break; case SANITY_CHECK_FAILURE: e = new FailedSanityCheckException(codes[i].getExceptionMsg()); builder.addResultOrException(getResultOrException(e, index)); break; default: e = new DoNotRetryIOException(codes[i].getExceptionMsg()); builder.addResultOrException(getResultOrException(e, index)); break; case SUCCESS: builder.addResultOrException(getResultOrException( ClientProtos.Result.getDefaultInstance(), index)); break; case STORE_TOO_BUSY: e = new RegionTooBusyException(codes[i].getExceptionMsg()); builder.addResultOrException(getResultOrException(e, index)); break; } } } finally { int processedMutationIndex = 0; for (Action mutation : mutations) { // The non-null mArray[i] means the cell scanner has been read. if (mArray[processedMutationIndex++] == null) { skipCellsForMutation(mutation, cells); } } updateMutationMetrics(region, before, batchContainsPuts, batchContainsDelete); } } private void updateMutationMetrics(HRegion region, long starttime, boolean batchContainsPuts, boolean batchContainsDelete) { final MetricsRegionServer metricsRegionServer = regionServer.getMetrics(); if (metricsRegionServer != null) { long after = EnvironmentEdgeManager.currentTime(); if (batchContainsPuts) { metricsRegionServer.updatePutBatch( region.getTableDescriptor().getTableName(), after - starttime); } if (batchContainsDelete) { metricsRegionServer.updateDeleteBatch( region.getTableDescriptor().getTableName(), after - starttime); } } } /** * Execute a list of Put/Delete mutations. The function returns OperationStatus instead of * constructing MultiResponse to save a possible loop if caller doesn't need MultiResponse. * @param region * @param mutations * @param replaySeqId * @return an array of OperationStatus which internally contains the OperationStatusCode and the * exceptionMessage if any * @throws IOException */ private OperationStatus [] doReplayBatchOp(final HRegion region, final List<MutationReplay> mutations, long replaySeqId) throws IOException { long before = EnvironmentEdgeManager.currentTime(); boolean batchContainsPuts = false, batchContainsDelete = false; try { for (Iterator<MutationReplay> it = mutations.iterator(); it.hasNext();) { MutationReplay m = it.next(); if (m.getType() == MutationType.PUT) { batchContainsPuts = true; } else { batchContainsDelete = true; } NavigableMap<byte[], List<Cell>> map = m.mutation.getFamilyCellMap(); List<Cell> metaCells = map.get(WALEdit.METAFAMILY); if (metaCells != null && !metaCells.isEmpty()) { for (Cell metaCell : metaCells) { CompactionDescriptor compactionDesc = WALEdit.getCompaction(metaCell); boolean isDefaultReplica = RegionReplicaUtil.isDefaultReplica(region.getRegionInfo()); HRegion hRegion = region; if (compactionDesc != null) { // replay the compaction. Remove the files from stores only if we are the primary // region replica (thus own the files) hRegion.replayWALCompactionMarker(compactionDesc, !isDefaultReplica, isDefaultReplica, replaySeqId); continue; } FlushDescriptor flushDesc = WALEdit.getFlushDescriptor(metaCell); if (flushDesc != null && !isDefaultReplica) { hRegion.replayWALFlushMarker(flushDesc, replaySeqId); continue; } RegionEventDescriptor regionEvent = WALEdit.getRegionEventDescriptor(metaCell); if (regionEvent != null && !isDefaultReplica) { hRegion.replayWALRegionEventMarker(regionEvent); continue; } BulkLoadDescriptor bulkLoadEvent = WALEdit.getBulkLoadDescriptor(metaCell); if (bulkLoadEvent != null) { hRegion.replayWALBulkLoadEventMarker(bulkLoadEvent); continue; } } it.remove(); } } requestCount.increment(); if (!region.getRegionInfo().isMetaRegion()) { regionServer.getMemStoreFlusher().reclaimMemStoreMemory(); } return region.batchReplay(mutations.toArray( new MutationReplay[mutations.size()]), replaySeqId); } finally { updateMutationMetrics(region, before, batchContainsPuts, batchContainsDelete); } } private void closeAllScanners() { // Close any outstanding scanners. Means they'll get an UnknownScanner // exception next time they come in. for (Map.Entry<String, RegionScannerHolder> e : scanners.entrySet()) { try { e.getValue().s.close(); } catch (IOException ioe) { LOG.warn("Closing scanner " + e.getKey(), ioe); } } } // Exposed for testing interface LogDelegate { void logBatchWarning(String firstRegionName, int sum, int rowSizeWarnThreshold); } private static LogDelegate DEFAULT_LOG_DELEGATE = new LogDelegate() { @Override public void logBatchWarning(String firstRegionName, int sum, int rowSizeWarnThreshold) { if (LOG.isWarnEnabled()) { LOG.warn("Large batch operation detected (greater than " + rowSizeWarnThreshold + ") (HBASE-18023)." + " Requested Number of Rows: " + sum + " Client: " + RpcServer.getRequestUserName().orElse(null) + "/" + RpcServer.getRemoteAddress().orElse(null) + " first region in multi=" + firstRegionName); } } }; private final LogDelegate ld; public RSRpcServices(final HRegionServer rs) throws IOException { this(rs, DEFAULT_LOG_DELEGATE); } // Directly invoked only for testing RSRpcServices(final HRegionServer rs, final LogDelegate ld) throws IOException { final Configuration conf = rs.getConfiguration(); this.ld = ld; regionServer = rs; rowSizeWarnThreshold = conf.getInt(BATCH_ROWS_THRESHOLD_NAME, BATCH_ROWS_THRESHOLD_DEFAULT); rejectRowsWithSizeOverThreshold = conf.getBoolean(REJECT_BATCH_ROWS_OVER_THRESHOLD, DEFAULT_REJECT_BATCH_ROWS_OVER_THRESHOLD); final RpcSchedulerFactory rpcSchedulerFactory; try { rpcSchedulerFactory = getRpcSchedulerFactoryClass().asSubclass(RpcSchedulerFactory.class) .getDeclaredConstructor().newInstance(); } catch (NoSuchMethodException | InvocationTargetException | InstantiationException | IllegalAccessException e) { throw new IllegalArgumentException(e); } // Server to handle client requests. final InetSocketAddress initialIsa; final InetSocketAddress bindAddress; if(this instanceof MasterRpcServices) { String hostname = DNS.getHostname(conf, DNS.ServerType.MASTER); int port = conf.getInt(HConstants.MASTER_PORT, HConstants.DEFAULT_MASTER_PORT); // Creation of a HSA will force a resolve. initialIsa = new InetSocketAddress(hostname, port); bindAddress = new InetSocketAddress(conf.get("hbase.master.ipc.address", hostname), port); } else { String hostname = DNS.getHostname(conf, DNS.ServerType.REGIONSERVER); int port = conf.getInt(HConstants.REGIONSERVER_PORT, HConstants.DEFAULT_REGIONSERVER_PORT); // Creation of a HSA will force a resolve. initialIsa = new InetSocketAddress(hostname, port); bindAddress = new InetSocketAddress(conf.get("hbase.regionserver.ipc.address", hostname), port); } if (initialIsa.getAddress() == null) { throw new IllegalArgumentException("Failed resolve of " + initialIsa); } priority = createPriority(); // Using Address means we don't get the IP too. Shorten it more even to just the host name // w/o the domain. final String name = rs.getProcessName() + "/" + Address.fromParts(initialIsa.getHostName(), initialIsa.getPort()).toStringWithoutDomain(); // Set how many times to retry talking to another server over Connection. ConnectionUtils.setServerSideHConnectionRetriesConfig(conf, name, LOG); rpcServer = createRpcServer(rs, rpcSchedulerFactory, bindAddress, name); rpcServer.setRsRpcServices(this); if (!(rs instanceof HMaster)) { rpcServer.setSlowLogRecorder(rs.getSlowLogRecorder()); } scannerLeaseTimeoutPeriod = conf.getInt( HConstants.HBASE_CLIENT_SCANNER_TIMEOUT_PERIOD, HConstants.DEFAULT_HBASE_CLIENT_SCANNER_TIMEOUT_PERIOD); maxScannerResultSize = conf.getLong( HConstants.HBASE_SERVER_SCANNER_MAX_RESULT_SIZE_KEY, HConstants.DEFAULT_HBASE_SERVER_SCANNER_MAX_RESULT_SIZE); rpcTimeout = conf.getInt( HConstants.HBASE_RPC_TIMEOUT_KEY, HConstants.DEFAULT_HBASE_RPC_TIMEOUT); minimumScanTimeLimitDelta = conf.getLong( REGION_SERVER_RPC_MINIMUM_SCAN_TIME_LIMIT_DELTA, DEFAULT_REGION_SERVER_RPC_MINIMUM_SCAN_TIME_LIMIT_DELTA); final InetSocketAddress address = rpcServer.getListenerAddress(); if (address == null) { throw new IOException("Listener channel is closed"); } // Set our address, however we need the final port that was given to rpcServer isa = new InetSocketAddress(initialIsa.getHostName(), address.getPort()); rpcServer.setErrorHandler(this); rs.setName(name); closedScanners = CacheBuilder.newBuilder() .expireAfterAccess(scannerLeaseTimeoutPeriod, TimeUnit.MILLISECONDS).build(); } protected RpcServerInterface createRpcServer( final Server server, final RpcSchedulerFactory rpcSchedulerFactory, final InetSocketAddress bindAddress, final String name ) throws IOException { final Configuration conf = server.getConfiguration(); boolean reservoirEnabled = conf.getBoolean(ByteBuffAllocator.ALLOCATOR_POOL_ENABLED_KEY, true); try { return RpcServerFactory.createRpcServer(server, name, getServices(), bindAddress, // use final bindAddress for this server. conf, rpcSchedulerFactory.create(conf, this, server), reservoirEnabled); } catch (BindException be) { throw new IOException(be.getMessage() + ". To switch ports use the '" + HConstants.REGIONSERVER_PORT + "' configuration property.", be.getCause() != null ? be.getCause() : be); } } protected Class<?> getRpcSchedulerFactoryClass() { final Configuration conf = regionServer.getConfiguration(); return conf.getClass(REGION_SERVER_RPC_SCHEDULER_FACTORY_CLASS, SimpleRpcSchedulerFactory.class); } @Override public void onConfigurationChange(Configuration newConf) { if (rpcServer instanceof ConfigurationObserver) { ((ConfigurationObserver)rpcServer).onConfigurationChange(newConf); } } protected PriorityFunction createPriority() { return new AnnotationReadingPriorityFunction(this); } protected void requirePermission(String request, Permission.Action perm) throws IOException { if (accessChecker != null) { accessChecker.requirePermission(RpcServer.getRequestUser().orElse(null), request, null, perm); } } @VisibleForTesting public int getScannersCount() { return scanners.size(); } public RegionScanner getScanner(long scannerId) { String scannerIdString = Long.toString(scannerId); RegionScannerHolder scannerHolder = scanners.get(scannerIdString); if (scannerHolder != null) { return scannerHolder.s; } return null; } public String getScanDetailsWithId(long scannerId) { RegionScanner scanner = getScanner(scannerId); if (scanner == null) { return null; } StringBuilder builder = new StringBuilder(); builder.append("table: ").append(scanner.getRegionInfo().getTable().getNameAsString()); builder.append(" region: ").append(scanner.getRegionInfo().getRegionNameAsString()); return builder.toString(); } public String getScanDetailsWithRequest(ScanRequest request) { try { if (!request.hasRegion()) { return null; } Region region = getRegion(request.getRegion()); StringBuilder builder = new StringBuilder(); builder.append("table: ").append(region.getRegionInfo().getTable().getNameAsString()); builder.append(" region: ").append(region.getRegionInfo().getRegionNameAsString()); return builder.toString(); } catch (IOException ignored) { return null; } } /** * Get the vtime associated with the scanner. * Currently the vtime is the number of "next" calls. */ long getScannerVirtualTime(long scannerId) { String scannerIdString = Long.toString(scannerId); RegionScannerHolder scannerHolder = scanners.get(scannerIdString); if (scannerHolder != null) { return scannerHolder.getNextCallSeq(); } return 0L; } /** * Method to account for the size of retained cells and retained data blocks. * @param context rpc call context * @param r result to add size. * @param lastBlock last block to check whether we need to add the block size in context. * @return an object that represents the last referenced block from this response. */ Object addSize(RpcCallContext context, Result r, Object lastBlock) { if (context != null && r != null && !r.isEmpty()) { for (Cell c : r.rawCells()) { context.incrementResponseCellSize(PrivateCellUtil.estimatedSerializedSizeOf(c)); // Since byte buffers can point all kinds of crazy places it's harder to keep track // of which blocks are kept alive by what byte buffer. // So we make a guess. if (c instanceof ByteBufferExtendedCell) { ByteBufferExtendedCell bbCell = (ByteBufferExtendedCell) c; ByteBuffer bb = bbCell.getValueByteBuffer(); if (bb != lastBlock) { context.incrementResponseBlockSize(bb.capacity()); lastBlock = bb; } } else { // We're using the last block being the same as the current block as // a proxy for pointing to a new block. This won't be exact. // If there are multiple gets that bounce back and forth // Then it's possible that this will over count the size of // referenced blocks. However it's better to over count and // use two rpcs than to OOME the regionserver. byte[] valueArray = c.getValueArray(); if (valueArray != lastBlock) { context.incrementResponseBlockSize(valueArray.length); lastBlock = valueArray; } } } } return lastBlock; } private RegionScannerHolder addScanner(String scannerName, RegionScanner s, Shipper shipper, HRegion r, boolean needCursor) throws LeaseStillHeldException { Lease lease = regionServer.getLeaseManager().createLease( scannerName, this.scannerLeaseTimeoutPeriod, new ScannerListener(scannerName)); RpcCallback shippedCallback = new RegionScannerShippedCallBack(scannerName, shipper, lease); RpcCallback closeCallback; if (s instanceof RpcCallback) { closeCallback = (RpcCallback) s; } else { closeCallback = new RegionScannerCloseCallBack(s); } RegionScannerHolder rsh = new RegionScannerHolder(scannerName, s, r, closeCallback, shippedCallback, needCursor); RegionScannerHolder existing = scanners.putIfAbsent(scannerName, rsh); assert existing == null : "scannerId must be unique within regionserver's whole lifecycle! " + scannerName; return rsh; } /** * Find the HRegion based on a region specifier * * @param regionSpecifier the region specifier * @return the corresponding region * @throws IOException if the specifier is not null, * but failed to find the region */ @VisibleForTesting public HRegion getRegion( final RegionSpecifier regionSpecifier) throws IOException { return regionServer.getRegion(regionSpecifier.getValue().toByteArray()); } /** * Find the List of HRegions based on a list of region specifiers * * @param regionSpecifiers the list of region specifiers * @return the corresponding list of regions * @throws IOException if any of the specifiers is not null, * but failed to find the region */ private List<HRegion> getRegions(final List<RegionSpecifier> regionSpecifiers, final CacheEvictionStatsBuilder stats) { List<HRegion> regions = Lists.newArrayListWithCapacity(regionSpecifiers.size()); for (RegionSpecifier regionSpecifier: regionSpecifiers) { try { regions.add(regionServer.getRegion(regionSpecifier.getValue().toByteArray())); } catch (NotServingRegionException e) { stats.addException(regionSpecifier.getValue().toByteArray(), e); } } return regions; } @VisibleForTesting public PriorityFunction getPriority() { return priority; } @VisibleForTesting public Configuration getConfiguration() { return regionServer.getConfiguration(); } private RegionServerRpcQuotaManager getRpcQuotaManager() { return regionServer.getRegionServerRpcQuotaManager(); } private RegionServerSpaceQuotaManager getSpaceQuotaManager() { return regionServer.getRegionServerSpaceQuotaManager(); } void start(ZKWatcher zkWatcher) { if (AccessChecker.isAuthorizationSupported(getConfiguration())) { accessChecker = new AccessChecker(getConfiguration()); } else { accessChecker = new NoopAccessChecker(getConfiguration()); } if (!getConfiguration().getBoolean("hbase.testing.nocluster", false) && zkWatcher != null) { zkPermissionWatcher = new ZKPermissionWatcher(zkWatcher, accessChecker.getAuthManager(), getConfiguration()); try { zkPermissionWatcher.start(); } catch (KeeperException e) { LOG.error("ZooKeeper permission watcher initialization failed", e); } } this.scannerIdGenerator = new ScannerIdGenerator(this.regionServer.serverName); rpcServer.start(); } void stop() { if (zkPermissionWatcher != null) { zkPermissionWatcher.close(); } closeAllScanners(); rpcServer.stop(); } /** * Called to verify that this server is up and running. */ // TODO : Rename this and HMaster#checkInitialized to isRunning() (or a better name). protected void checkOpen() throws IOException { if (regionServer.isAborted()) { throw new RegionServerAbortedException("Server " + regionServer.serverName + " aborting"); } if (regionServer.isStopped()) { throw new RegionServerStoppedException("Server " + regionServer.serverName + " stopping"); } if (!regionServer.isDataFileSystemOk()) { throw new RegionServerStoppedException("File system not available"); } if (!regionServer.isOnline()) { throw new ServerNotRunningYetException("Server " + regionServer.serverName + " is not running yet"); } } /** * By default, put up an Admin and a Client Service. * Set booleans <code>hbase.regionserver.admin.executorService</code> and * <code>hbase.regionserver.client.executorService</code> if you want to enable/disable services. * Default is that both are enabled. * @return immutable list of blocking services and the security info classes that this server * supports */ protected List<BlockingServiceAndInterface> getServices() { boolean admin = getConfiguration().getBoolean(REGIONSERVER_ADMIN_SERVICE_CONFIG, true); boolean client = getConfiguration().getBoolean(REGIONSERVER_CLIENT_SERVICE_CONFIG, true); List<BlockingServiceAndInterface> bssi = new ArrayList<>(); if (client) { bssi.add(new BlockingServiceAndInterface( ClientService.newReflectiveBlockingService(this), ClientService.BlockingInterface.class)); } if (admin) { bssi.add(new BlockingServiceAndInterface( AdminService.newReflectiveBlockingService(this), AdminService.BlockingInterface.class)); } return new org.apache.hbase.thirdparty.com.google.common.collect. ImmutableList.Builder<BlockingServiceAndInterface>().addAll(bssi).build(); } public InetSocketAddress getSocketAddress() { return isa; } @Override public int getPriority(RequestHeader header, Message param, User user) { return priority.getPriority(header, param, user); } @Override public long getDeadline(RequestHeader header, Message param) { return priority.getDeadline(header, param); } /* * Check if an OOME and, if so, abort immediately to avoid creating more objects. * * @param e * * @return True if we OOME'd and are aborting. */ @Override public boolean checkOOME(final Throwable e) { return exitIfOOME(e); } public static boolean exitIfOOME(final Throwable e ){ boolean stop = false; try { if (e instanceof OutOfMemoryError || (e.getCause() != null && e.getCause() instanceof OutOfMemoryError) || (e.getMessage() != null && e.getMessage().contains( "java.lang.OutOfMemoryError"))) { stop = true; LOG.error(HBaseMarkers.FATAL, "Run out of memory; " + RSRpcServices.class.getSimpleName() + " will abort itself immediately", e); } } finally { if (stop) { Runtime.getRuntime().halt(1); } } return stop; } /** * Close a region on the region server. * * @param controller the RPC controller * @param request the request * @throws ServiceException */ @Override @QosPriority(priority=HConstants.ADMIN_QOS) public CloseRegionResponse closeRegion(final RpcController controller, final CloseRegionRequest request) throws ServiceException { final ServerName sn = (request.hasDestinationServer() ? ProtobufUtil.toServerName(request.getDestinationServer()) : null); try { checkOpen(); throwOnWrongStartCode(request); final String encodedRegionName = ProtobufUtil.getRegionEncodedName(request.getRegion()); requestCount.increment(); if (sn == null) { LOG.info("Close " + encodedRegionName + " without moving"); } else { LOG.info("Close " + encodedRegionName + ", moving to " + sn); } boolean closed = regionServer.closeRegion(encodedRegionName, false, sn); CloseRegionResponse.Builder builder = CloseRegionResponse.newBuilder().setClosed(closed); return builder.build(); } catch (IOException ie) { throw new ServiceException(ie); } } /** * Compact a region on the region server. * * @param controller the RPC controller * @param request the request * @throws ServiceException */ @Override @QosPriority(priority = HConstants.ADMIN_QOS) public CompactRegionResponse compactRegion(final RpcController controller, final CompactRegionRequest request) throws ServiceException { try { checkOpen(); requestCount.increment(); HRegion region = getRegion(request.getRegion()); // Quota support is enabled, the requesting user is not system/super user // and a quota policy is enforced that disables compactions. if (QuotaUtil.isQuotaEnabled(getConfiguration()) && !Superusers.isSuperUser(RpcServer.getRequestUser().orElse(null)) && this.regionServer.getRegionServerSpaceQuotaManager() .areCompactionsDisabled(region.getTableDescriptor().getTableName())) { throw new DoNotRetryIOException( "Compactions on this region are " + "disabled due to a space quota violation."); } region.startRegionOperation(Operation.COMPACT_REGION); LOG.info("Compacting " + region.getRegionInfo().getRegionNameAsString()); boolean major = request.hasMajor() && request.getMajor(); if (request.hasFamily()) { byte[] family = request.getFamily().toByteArray(); String log = "User-triggered " + (major ? "major " : "") + "compaction for region " + region.getRegionInfo().getRegionNameAsString() + " and family " + Bytes.toString(family); LOG.trace(log); region.requestCompaction(family, log, Store.PRIORITY_USER, major, CompactionLifeCycleTracker.DUMMY); } else { String log = "User-triggered " + (major ? "major " : "") + "compaction for region " + region.getRegionInfo().getRegionNameAsString(); LOG.trace(log); region.requestCompaction(log, Store.PRIORITY_USER, major, CompactionLifeCycleTracker.DUMMY); } return CompactRegionResponse.newBuilder().build(); } catch (IOException ie) { throw new ServiceException(ie); } } @Override public CompactionSwitchResponse compactionSwitch(RpcController controller, CompactionSwitchRequest request) throws ServiceException { try { checkOpen(); requestCount.increment(); boolean prevState = regionServer.compactSplitThread.isCompactionsEnabled(); CompactionSwitchResponse response = CompactionSwitchResponse.newBuilder().setPrevState(prevState).build(); if (prevState == request.getEnabled()) { // passed in requested state is same as current state. No action required return response; } regionServer.compactSplitThread.switchCompaction(request.getEnabled()); return response; } catch (IOException ie) { throw new ServiceException(ie); } } /** * Flush a region on the region server. * * @param controller the RPC controller * @param request the request * @throws ServiceException */ @Override @QosPriority(priority=HConstants.ADMIN_QOS) public FlushRegionResponse flushRegion(final RpcController controller, final FlushRegionRequest request) throws ServiceException { try { checkOpen(); requestCount.increment(); HRegion region = getRegion(request.getRegion()); LOG.info("Flushing " + region.getRegionInfo().getRegionNameAsString()); boolean shouldFlush = true; if (request.hasIfOlderThanTs()) { shouldFlush = region.getEarliestFlushTimeForAllStores() < request.getIfOlderThanTs(); } FlushRegionResponse.Builder builder = FlushRegionResponse.newBuilder(); if (shouldFlush) { boolean writeFlushWalMarker = request.hasWriteFlushWalMarker() ? request.getWriteFlushWalMarker() : false; // Go behind the curtain so we can manage writing of the flush WAL marker HRegion.FlushResultImpl flushResult = region.flushcache(true, writeFlushWalMarker, FlushLifeCycleTracker.DUMMY); boolean compactionNeeded = flushResult.isCompactionNeeded(); if (compactionNeeded) { regionServer.compactSplitThread.requestSystemCompaction(region, "Compaction through user triggered flush"); } builder.setFlushed(flushResult.isFlushSucceeded()); builder.setWroteFlushWalMarker(flushResult.wroteFlushWalMarker); } builder.setLastFlushTime(region.getEarliestFlushTimeForAllStores()); return builder.build(); } catch (DroppedSnapshotException ex) { // Cache flush can fail in a few places. If it fails in a critical // section, we get a DroppedSnapshotException and a replay of wal // is required. Currently the only way to do this is a restart of // the server. regionServer.abort("Replay of WAL required. Forcing server shutdown", ex); throw new ServiceException(ex); } catch (IOException ie) { throw new ServiceException(ie); } } @Override @QosPriority(priority=HConstants.ADMIN_QOS) public GetOnlineRegionResponse getOnlineRegion(final RpcController controller, final GetOnlineRegionRequest request) throws ServiceException { try { checkOpen(); requestCount.increment(); Map<String, HRegion> onlineRegions = regionServer.getOnlineRegions(); List<RegionInfo> list = new ArrayList<>(onlineRegions.size()); for (HRegion region: onlineRegions.values()) { list.add(region.getRegionInfo()); } list.sort(RegionInfo.COMPARATOR); return ResponseConverter.buildGetOnlineRegionResponse(list); } catch (IOException ie) { throw new ServiceException(ie); } } // Master implementation of this Admin Service differs given it is not // able to supply detail only known to RegionServer. See note on // MasterRpcServers#getRegionInfo. @Override @QosPriority(priority=HConstants.ADMIN_QOS) public GetRegionInfoResponse getRegionInfo(final RpcController controller, final GetRegionInfoRequest request) throws ServiceException { try { checkOpen(); requestCount.increment(); HRegion region = getRegion(request.getRegion()); RegionInfo info = region.getRegionInfo(); byte[] bestSplitRow; if (request.hasBestSplitRow() && request.getBestSplitRow()) { bestSplitRow = region.checkSplit(true).orElse(null); // when all table data are in memstore, bestSplitRow = null // try to flush region first if (bestSplitRow == null) { region.flush(true); bestSplitRow = region.checkSplit(true).orElse(null); } } else { bestSplitRow = null; } GetRegionInfoResponse.Builder builder = GetRegionInfoResponse.newBuilder(); builder.setRegionInfo(ProtobufUtil.toRegionInfo(info)); if (request.hasCompactionState() && request.getCompactionState()) { builder.setCompactionState(ProtobufUtil.createCompactionState(region.getCompactionState())); } builder.setSplittable(region.isSplittable()); builder.setMergeable(region.isMergeable()); if (request.hasBestSplitRow() && request.getBestSplitRow() && bestSplitRow != null) { builder.setBestSplitRow(UnsafeByteOperations.unsafeWrap(bestSplitRow)); } return builder.build(); } catch (IOException ie) { throw new ServiceException(ie); } } @Override @QosPriority(priority=HConstants.ADMIN_QOS) public GetRegionLoadResponse getRegionLoad(RpcController controller, GetRegionLoadRequest request) throws ServiceException { List<HRegion> regions; if (request.hasTableName()) { TableName tableName = ProtobufUtil.toTableName(request.getTableName()); regions = regionServer.getRegions(tableName); } else { regions = regionServer.getRegions(); } List<RegionLoad> rLoads = new ArrayList<>(regions.size()); RegionLoad.Builder regionLoadBuilder = ClusterStatusProtos.RegionLoad.newBuilder(); RegionSpecifier.Builder regionSpecifier = RegionSpecifier.newBuilder(); try { for (HRegion region : regions) { rLoads.add(regionServer.createRegionLoad(region, regionLoadBuilder, regionSpecifier)); } } catch (IOException e) { throw new ServiceException(e); } GetRegionLoadResponse.Builder builder = GetRegionLoadResponse.newBuilder(); builder.addAllRegionLoads(rLoads); return builder.build(); } @Override @QosPriority(priority=HConstants.ADMIN_QOS) public ClearCompactionQueuesResponse clearCompactionQueues(RpcController controller, ClearCompactionQueuesRequest request) throws ServiceException { LOG.debug("Client=" + RpcServer.getRequestUserName().orElse(null) + "/" + RpcServer.getRemoteAddress().orElse(null) + " clear compactions queue"); ClearCompactionQueuesResponse.Builder respBuilder = ClearCompactionQueuesResponse.newBuilder(); requestCount.increment(); if (clearCompactionQueues.compareAndSet(false,true)) { try { checkOpen(); regionServer.getRegionServerCoprocessorHost().preClearCompactionQueues(); for (String queueName : request.getQueueNameList()) { LOG.debug("clear " + queueName + " compaction queue"); switch (queueName) { case "long": regionServer.compactSplitThread.clearLongCompactionsQueue(); break; case "short": regionServer.compactSplitThread.clearShortCompactionsQueue(); break; default: LOG.warn("Unknown queue name " + queueName); throw new IOException("Unknown queue name " + queueName); } } regionServer.getRegionServerCoprocessorHost().postClearCompactionQueues(); } catch (IOException ie) { throw new ServiceException(ie); } finally { clearCompactionQueues.set(false); } } else { LOG.warn("Clear compactions queue is executing by other admin."); } return respBuilder.build(); } /** * Get some information of the region server. * * @param controller the RPC controller * @param request the request * @throws ServiceException */ @Override @QosPriority(priority=HConstants.ADMIN_QOS) public GetServerInfoResponse getServerInfo(final RpcController controller, final GetServerInfoRequest request) throws ServiceException { try { checkOpen(); } catch (IOException ie) { throw new ServiceException(ie); } requestCount.increment(); int infoPort = regionServer.infoServer != null ? regionServer.infoServer.getPort() : -1; return ResponseConverter.buildGetServerInfoResponse(regionServer.serverName, infoPort); } @Override @QosPriority(priority=HConstants.ADMIN_QOS) public GetStoreFileResponse getStoreFile(final RpcController controller, final GetStoreFileRequest request) throws ServiceException { try { checkOpen(); HRegion region = getRegion(request.getRegion()); requestCount.increment(); Set<byte[]> columnFamilies; if (request.getFamilyCount() == 0) { columnFamilies = region.getTableDescriptor().getColumnFamilyNames(); } else { columnFamilies = new TreeSet<>(Bytes.BYTES_RAWCOMPARATOR); for (ByteString cf: request.getFamilyList()) { columnFamilies.add(cf.toByteArray()); } } int nCF = columnFamilies.size(); List<String> fileList = region.getStoreFileList( columnFamilies.toArray(new byte[nCF][])); GetStoreFileResponse.Builder builder = GetStoreFileResponse.newBuilder(); builder.addAllStoreFile(fileList); return builder.build(); } catch (IOException ie) { throw new ServiceException(ie); } } private void throwOnWrongStartCode(OpenRegionRequest request) throws ServiceException { if (!request.hasServerStartCode()) { LOG.warn("OpenRegionRequest for {} does not have a start code", request.getOpenInfoList()); return; } throwOnWrongStartCode(request.getServerStartCode()); } private void throwOnWrongStartCode(CloseRegionRequest request) throws ServiceException { if (!request.hasServerStartCode()) { LOG.warn("CloseRegionRequest for {} does not have a start code", request.getRegion()); return; } throwOnWrongStartCode(request.getServerStartCode()); } private void throwOnWrongStartCode(long serverStartCode) throws ServiceException { // check that we are the same server that this RPC is intended for. if (regionServer.serverName.getStartcode() != serverStartCode) { throw new ServiceException(new DoNotRetryIOException( "This RPC was intended for a " + "different server with startCode: " + serverStartCode + ", this server is: " + regionServer.serverName)); } } private void throwOnWrongStartCode(ExecuteProceduresRequest req) throws ServiceException { if (req.getOpenRegionCount() > 0) { for (OpenRegionRequest openReq : req.getOpenRegionList()) { throwOnWrongStartCode(openReq); } } if (req.getCloseRegionCount() > 0) { for (CloseRegionRequest closeReq : req.getCloseRegionList()) { throwOnWrongStartCode(closeReq); } } } /** * Open asynchronously a region or a set of regions on the region server. * * The opening is coordinated by ZooKeeper, and this method requires the znode to be created * before being called. As a consequence, this method should be called only from the master. * <p> * Different manages states for the region are: * </p><ul> * <li>region not opened: the region opening will start asynchronously.</li> * <li>a close is already in progress: this is considered as an error.</li> * <li>an open is already in progress: this new open request will be ignored. This is important * because the Master can do multiple requests if it crashes.</li> * <li>the region is already opened: this new open request will be ignored.</li> * </ul> * <p> * Bulk assign: If there are more than 1 region to open, it will be considered as a bulk assign. * For a single region opening, errors are sent through a ServiceException. For bulk assign, * errors are put in the response as FAILED_OPENING. * </p> * @param controller the RPC controller * @param request the request * @throws ServiceException */ @Override @QosPriority(priority=HConstants.ADMIN_QOS) public OpenRegionResponse openRegion(final RpcController controller, final OpenRegionRequest request) throws ServiceException { requestCount.increment(); throwOnWrongStartCode(request); OpenRegionResponse.Builder builder = OpenRegionResponse.newBuilder(); final int regionCount = request.getOpenInfoCount(); final Map<TableName, TableDescriptor> htds = new HashMap<>(regionCount); final boolean isBulkAssign = regionCount > 1; try { checkOpen(); } catch (IOException ie) { TableName tableName = null; if (regionCount == 1) { org.apache.hadoop.hbase.shaded.protobuf.generated.HBaseProtos.RegionInfo ri = request.getOpenInfo(0).getRegion(); if (ri != null) { tableName = ProtobufUtil.toTableName(ri.getTableName()); } } if (!TableName.META_TABLE_NAME.equals(tableName)) { throw new ServiceException(ie); } // We are assigning meta, wait a little for regionserver to finish initialization. int timeout = regionServer.getConfiguration().getInt(HConstants.HBASE_RPC_TIMEOUT_KEY, HConstants.DEFAULT_HBASE_RPC_TIMEOUT) >> 2; // Quarter of RPC timeout long endTime = System.currentTimeMillis() + timeout; synchronized (regionServer.online) { try { while (System.currentTimeMillis() <= endTime && !regionServer.isStopped() && !regionServer.isOnline()) { regionServer.online.wait(regionServer.msgInterval); } checkOpen(); } catch (InterruptedException t) { Thread.currentThread().interrupt(); throw new ServiceException(t); } catch (IOException e) { throw new ServiceException(e); } } } long masterSystemTime = request.hasMasterSystemTime() ? request.getMasterSystemTime() : -1; for (RegionOpenInfo regionOpenInfo : request.getOpenInfoList()) { final RegionInfo region = ProtobufUtil.toRegionInfo(regionOpenInfo.getRegion()); TableDescriptor htd; try { String encodedName = region.getEncodedName(); byte[] encodedNameBytes = region.getEncodedNameAsBytes(); final HRegion onlineRegion = regionServer.getRegion(encodedName); if (onlineRegion != null) { // The region is already online. This should not happen any more. String error = "Received OPEN for the region:" + region.getRegionNameAsString() + ", which is already online"; LOG.warn(error); //regionServer.abort(error); //throw new IOException(error); builder.addOpeningState(RegionOpeningState.OPENED); continue; } LOG.info("Open " + region.getRegionNameAsString()); final Boolean previous = regionServer.getRegionsInTransitionInRS().putIfAbsent( encodedNameBytes, Boolean.TRUE); if (Boolean.FALSE.equals(previous)) { if (regionServer.getRegion(encodedName) != null) { // There is a close in progress. This should not happen any more. String error = "Received OPEN for the region:" + region.getRegionNameAsString() + ", which we are already trying to CLOSE"; regionServer.abort(error); throw new IOException(error); } regionServer.getRegionsInTransitionInRS().put(encodedNameBytes, Boolean.TRUE); } if (Boolean.TRUE.equals(previous)) { // An open is in progress. This is supported, but let's log this. LOG.info("Receiving OPEN for the region:" + region.getRegionNameAsString() + ", which we are already trying to OPEN" + " - ignoring this new request for this region."); } // We are opening this region. If it moves back and forth for whatever reason, we don't // want to keep returning the stale moved record while we are opening/if we close again. regionServer.removeFromMovedRegions(region.getEncodedName()); if (previous == null || !previous.booleanValue()) { htd = htds.get(region.getTable()); if (htd == null) { htd = regionServer.tableDescriptors.get(region.getTable()); htds.put(region.getTable(), htd); } if (htd == null) { throw new IOException("Missing table descriptor for " + region.getEncodedName()); } // If there is no action in progress, we can submit a specific handler. // Need to pass the expected version in the constructor. if (regionServer.executorService == null) { LOG.info("No executor executorService; skipping open request"); } else { if (region.isMetaRegion()) { regionServer.executorService.submit(new OpenMetaHandler( regionServer, regionServer, region, htd, masterSystemTime)); } else { if (regionOpenInfo.getFavoredNodesCount() > 0) { regionServer.updateRegionFavoredNodesMapping(region.getEncodedName(), regionOpenInfo.getFavoredNodesList()); } if (htd.getPriority() >= HConstants.ADMIN_QOS || region.getTable().isSystemTable()) { regionServer.executorService.submit(new OpenPriorityRegionHandler( regionServer, regionServer, region, htd, masterSystemTime)); } else { regionServer.executorService.submit(new OpenRegionHandler( regionServer, regionServer, region, htd, masterSystemTime)); } } } } builder.addOpeningState(RegionOpeningState.OPENED); } catch (IOException ie) { LOG.warn("Failed opening region " + region.getRegionNameAsString(), ie); if (isBulkAssign) { builder.addOpeningState(RegionOpeningState.FAILED_OPENING); } else { throw new ServiceException(ie); } } } return builder.build(); } /** * Wamrmup a region on this server. * * This method should only be called by Master. It synchrnously opens the region and * closes the region bringing the most important pages in cache. * <p> * * @param controller the RPC controller * @param request the request * @throws ServiceException */ @Override public WarmupRegionResponse warmupRegion(final RpcController controller, final WarmupRegionRequest request) throws ServiceException { final RegionInfo region = ProtobufUtil.toRegionInfo(request.getRegionInfo()); TableDescriptor htd; WarmupRegionResponse response = WarmupRegionResponse.getDefaultInstance(); try { checkOpen(); String encodedName = region.getEncodedName(); byte[] encodedNameBytes = region.getEncodedNameAsBytes(); final HRegion onlineRegion = regionServer.getRegion(encodedName); if (onlineRegion != null) { LOG.info("Region already online. Skipping warming up " + region); return response; } htd = regionServer.tableDescriptors.get(region.getTable()); if (regionServer.getRegionsInTransitionInRS().containsKey(encodedNameBytes)) { LOG.info("Region is in transition. Skipping warmup " + region); return response; } LOG.info("Warming up region " + region.getRegionNameAsString()); HRegion.warmupHRegion(region, htd, regionServer.getWAL(region), regionServer.getConfiguration(), regionServer, null); } catch (IOException ie) { LOG.error("Failed warming up region " + region.getRegionNameAsString(), ie); throw new ServiceException(ie); } return response; } /** * Replay the given changes when distributedLogReplay WAL edits from a failed RS. The guarantee is * that the given mutations will be durable on the receiving RS if this method returns without any * exception. * @param controller the RPC controller * @param request the request * @throws ServiceException */ @Override @QosPriority(priority = HConstants.REPLAY_QOS) public ReplicateWALEntryResponse replay(final RpcController controller, final ReplicateWALEntryRequest request) throws ServiceException { long before = EnvironmentEdgeManager.currentTime(); CellScanner cells = ((HBaseRpcController) controller).cellScanner(); try { checkOpen(); List<WALEntry> entries = request.getEntryList(); if (entries == null || entries.isEmpty()) { // empty input return ReplicateWALEntryResponse.newBuilder().build(); } ByteString regionName = entries.get(0).getKey().getEncodedRegionName(); HRegion region = regionServer.getRegionByEncodedName(regionName.toStringUtf8()); RegionCoprocessorHost coprocessorHost = ServerRegionReplicaUtil.isDefaultReplica(region.getRegionInfo()) ? region.getCoprocessorHost() : null; // do not invoke coprocessors if this is a secondary region replica List<Pair<WALKey, WALEdit>> walEntries = new ArrayList<>(); // Skip adding the edits to WAL if this is a secondary region replica boolean isPrimary = RegionReplicaUtil.isDefaultReplica(region.getRegionInfo()); Durability durability = isPrimary ? Durability.USE_DEFAULT : Durability.SKIP_WAL; for (WALEntry entry : entries) { if (!regionName.equals(entry.getKey().getEncodedRegionName())) { throw new NotServingRegionException("Replay request contains entries from multiple " + "regions. First region:" + regionName.toStringUtf8() + " , other region:" + entry.getKey().getEncodedRegionName()); } if (regionServer.nonceManager != null && isPrimary) { long nonceGroup = entry.getKey().hasNonceGroup() ? entry.getKey().getNonceGroup() : HConstants.NO_NONCE; long nonce = entry.getKey().hasNonce() ? entry.getKey().getNonce() : HConstants.NO_NONCE; regionServer.nonceManager.reportOperationFromWal( nonceGroup, nonce, entry.getKey().getWriteTime()); } Pair<WALKey, WALEdit> walEntry = (coprocessorHost == null) ? null : new Pair<>(); List<MutationReplay> edits = WALSplitUtil.getMutationsFromWALEntry(entry, cells, walEntry, durability); if (coprocessorHost != null) { // Start coprocessor replay here. The coprocessor is for each WALEdit instead of a // KeyValue. if (coprocessorHost.preWALRestore(region.getRegionInfo(), walEntry.getFirst(), walEntry.getSecond())) { // if bypass this log entry, ignore it ... continue; } walEntries.add(walEntry); } if(edits!=null && !edits.isEmpty()) { // HBASE-17924 // sort to improve lock efficiency Collections.sort(edits, (v1, v2) -> Row.COMPARATOR.compare(v1.mutation, v2.mutation)); long replaySeqId = (entry.getKey().hasOrigSequenceNumber()) ? entry.getKey().getOrigSequenceNumber() : entry.getKey().getLogSequenceNumber(); OperationStatus[] result = doReplayBatchOp(region, edits, replaySeqId); // check if it's a partial success for (int i = 0; result != null && i < result.length; i++) { if (result[i] != OperationStatus.SUCCESS) { throw new IOException(result[i].getExceptionMsg()); } } } } //sync wal at the end because ASYNC_WAL is used above WAL wal = region.getWAL(); if (wal != null) { wal.sync(); } if (coprocessorHost != null) { for (Pair<WALKey, WALEdit> entry : walEntries) { coprocessorHost.postWALRestore(region.getRegionInfo(), entry.getFirst(), entry.getSecond()); } } return ReplicateWALEntryResponse.newBuilder().build(); } catch (IOException ie) { throw new ServiceException(ie); } finally { final MetricsRegionServer metricsRegionServer = regionServer.getMetrics(); if (metricsRegionServer != null) { metricsRegionServer.updateReplay(EnvironmentEdgeManager.currentTime() - before); } } } private void checkShouldRejectReplicationRequest(List<WALEntry> entries) throws IOException { ReplicationSourceService replicationSource = regionServer.getReplicationSourceService(); if (replicationSource == null || entries.isEmpty()) { return; } // We can ensure that all entries are for one peer, so only need to check one entry's // table name. if the table hit sync replication at peer side and the peer cluster // is (or is transiting to) state ACTIVE or DOWNGRADE_ACTIVE, we should reject to apply // those entries according to the design doc. TableName table = TableName.valueOf(entries.get(0).getKey().getTableName().toByteArray()); if (replicationSource.getSyncReplicationPeerInfoProvider().checkState(table, RejectReplicationRequestStateChecker.get())) { throw new DoNotRetryIOException( "Reject to apply to sink cluster because sync replication state of sink cluster " + "is ACTIVE or DOWNGRADE_ACTIVE, table: " + table); } } /** * Replicate WAL entries on the region server. * @param controller the RPC controller * @param request the request */ @Override @QosPriority(priority=HConstants.REPLICATION_QOS) public ReplicateWALEntryResponse replicateWALEntry(final RpcController controller, final ReplicateWALEntryRequest request) throws ServiceException { try { checkOpen(); if (regionServer.getReplicationSinkService() != null) { requestCount.increment(); List<WALEntry> entries = request.getEntryList(); checkShouldRejectReplicationRequest(entries); CellScanner cellScanner = ((HBaseRpcController) controller).cellScanner(); regionServer.getRegionServerCoprocessorHost().preReplicateLogEntries(); regionServer.getReplicationSinkService().replicateLogEntries(entries, cellScanner, request.getReplicationClusterId(), request.getSourceBaseNamespaceDirPath(), request.getSourceHFileArchiveDirPath()); regionServer.getRegionServerCoprocessorHost().postReplicateLogEntries(); return ReplicateWALEntryResponse.newBuilder().build(); } else { throw new ServiceException("Replication services are not initialized yet"); } } catch (IOException ie) { throw new ServiceException(ie); } } /** * Roll the WAL writer of the region server. * @param controller the RPC controller * @param request the request * @throws ServiceException */ @Override public RollWALWriterResponse rollWALWriter(final RpcController controller, final RollWALWriterRequest request) throws ServiceException { try { checkOpen(); requestCount.increment(); regionServer.getRegionServerCoprocessorHost().preRollWALWriterRequest(); regionServer.getWalRoller().requestRollAll(); regionServer.getRegionServerCoprocessorHost().postRollWALWriterRequest(); RollWALWriterResponse.Builder builder = RollWALWriterResponse.newBuilder(); return builder.build(); } catch (IOException ie) { throw new ServiceException(ie); } } /** * Stop the region server. * * @param controller the RPC controller * @param request the request * @throws ServiceException */ @Override @QosPriority(priority=HConstants.ADMIN_QOS) public StopServerResponse stopServer(final RpcController controller, final StopServerRequest request) throws ServiceException { requestCount.increment(); String reason = request.getReason(); regionServer.stop(reason); return StopServerResponse.newBuilder().build(); } @Override public UpdateFavoredNodesResponse updateFavoredNodes(RpcController controller, UpdateFavoredNodesRequest request) throws ServiceException { List<UpdateFavoredNodesRequest.RegionUpdateInfo> openInfoList = request.getUpdateInfoList(); UpdateFavoredNodesResponse.Builder respBuilder = UpdateFavoredNodesResponse.newBuilder(); for (UpdateFavoredNodesRequest.RegionUpdateInfo regionUpdateInfo : openInfoList) { RegionInfo hri = ProtobufUtil.toRegionInfo(regionUpdateInfo.getRegion()); if (regionUpdateInfo.getFavoredNodesCount() > 0) { regionServer.updateRegionFavoredNodesMapping(hri.getEncodedName(), regionUpdateInfo.getFavoredNodesList()); } } respBuilder.setResponse(openInfoList.size()); return respBuilder.build(); } /** * Atomically bulk load several HFiles into an open region * @return true if successful, false is failed but recoverably (no action) * @throws ServiceException if failed unrecoverably */ @Override public BulkLoadHFileResponse bulkLoadHFile(final RpcController controller, final BulkLoadHFileRequest request) throws ServiceException { long start = EnvironmentEdgeManager.currentTime(); List<String> clusterIds = new ArrayList<>(request.getClusterIdsList()); if(clusterIds.contains(this.regionServer.clusterId)){ return BulkLoadHFileResponse.newBuilder().setLoaded(true).build(); } else { clusterIds.add(this.regionServer.clusterId); } try { checkOpen(); requestCount.increment(); HRegion region = getRegion(request.getRegion()); final boolean spaceQuotaEnabled = QuotaUtil.isQuotaEnabled(getConfiguration()); long sizeToBeLoaded = -1; // Check to see if this bulk load would exceed the space quota for this table if (spaceQuotaEnabled) { ActivePolicyEnforcement activeSpaceQuotas = getSpaceQuotaManager().getActiveEnforcements(); SpaceViolationPolicyEnforcement enforcement = activeSpaceQuotas.getPolicyEnforcement( region); if (enforcement != null) { // Bulk loads must still be atomic. We must enact all or none. List<String> filePaths = new ArrayList<>(request.getFamilyPathCount()); for (FamilyPath familyPath : request.getFamilyPathList()) { filePaths.add(familyPath.getPath()); } // Check if the batch of files exceeds the current quota sizeToBeLoaded = enforcement.computeBulkLoadSize(getFileSystem(filePaths), filePaths); } } // secure bulk load Map<byte[], List<Path>> map = regionServer.getSecureBulkLoadManager().secureBulkLoadHFiles(region, request, clusterIds); BulkLoadHFileResponse.Builder builder = BulkLoadHFileResponse.newBuilder(); builder.setLoaded(map != null); if (map != null) { // Treat any negative size as a flag to "ignore" updating the region size as that is // not possible to occur in real life (cannot bulk load a file with negative size) if (spaceQuotaEnabled && sizeToBeLoaded > 0) { if (LOG.isTraceEnabled()) { LOG.trace("Incrementing space use of " + region.getRegionInfo() + " by " + sizeToBeLoaded + " bytes"); } // Inform space quotas of the new files for this region getSpaceQuotaManager().getRegionSizeStore().incrementRegionSize( region.getRegionInfo(), sizeToBeLoaded); } } return builder.build(); } catch (IOException ie) { throw new ServiceException(ie); } finally { final MetricsRegionServer metricsRegionServer = regionServer.getMetrics(); if (metricsRegionServer != null) { metricsRegionServer.updateBulkLoad(EnvironmentEdgeManager.currentTime() - start); } } } @Override public PrepareBulkLoadResponse prepareBulkLoad(RpcController controller, PrepareBulkLoadRequest request) throws ServiceException { try { checkOpen(); requestCount.increment(); HRegion region = getRegion(request.getRegion()); String bulkToken = regionServer.getSecureBulkLoadManager().prepareBulkLoad(region, request); PrepareBulkLoadResponse.Builder builder = PrepareBulkLoadResponse.newBuilder(); builder.setBulkToken(bulkToken); return builder.build(); } catch (IOException ie) { throw new ServiceException(ie); } } @Override public CleanupBulkLoadResponse cleanupBulkLoad(RpcController controller, CleanupBulkLoadRequest request) throws ServiceException { try { checkOpen(); requestCount.increment(); HRegion region = getRegion(request.getRegion()); regionServer.getSecureBulkLoadManager().cleanupBulkLoad(region, request); return CleanupBulkLoadResponse.newBuilder().build(); } catch (IOException ie) { throw new ServiceException(ie); } } @Override public CoprocessorServiceResponse execService(final RpcController controller, final CoprocessorServiceRequest request) throws ServiceException { try { checkOpen(); requestCount.increment(); HRegion region = getRegion(request.getRegion()); Message result = execServiceOnRegion(region, request.getCall()); CoprocessorServiceResponse.Builder builder = CoprocessorServiceResponse.newBuilder(); builder.setRegion(RequestConverter.buildRegionSpecifier( RegionSpecifierType.REGION_NAME, region.getRegionInfo().getRegionName())); // TODO: COPIES!!!!!! builder.setValue(builder.getValueBuilder().setName(result.getClass().getName()). setValue(org.apache.hbase.thirdparty.com.google.protobuf.ByteString. copyFrom(result.toByteArray()))); return builder.build(); } catch (IOException ie) { throw new ServiceException(ie); } } private FileSystem getFileSystem(List<String> filePaths) throws IOException { if (filePaths.isEmpty()) { // local hdfs return regionServer.getFileSystem(); } // source hdfs return new Path(filePaths.get(0)).getFileSystem(regionServer.getConfiguration()); } private Message execServiceOnRegion(HRegion region, final ClientProtos.CoprocessorServiceCall serviceCall) throws IOException { // ignore the passed in controller (from the serialized call) ServerRpcController execController = new ServerRpcController(); return region.execService(execController, serviceCall); } private boolean shouldRejectRequestsFromClient(HRegion region) { TableName table = region.getRegionInfo().getTable(); ReplicationSourceService service = regionServer.getReplicationSourceService(); return service != null && service.getSyncReplicationPeerInfoProvider() .checkState(table, RejectRequestsFromClientStateChecker.get()); } private void rejectIfInStandByState(HRegion region) throws DoNotRetryIOException { if (shouldRejectRequestsFromClient(region)) { throw new DoNotRetryIOException( region.getRegionInfo().getRegionNameAsString() + " is in STANDBY state."); } } /** * Get data from a table. * * @param controller the RPC controller * @param request the get request * @throws ServiceException */ @Override public GetResponse get(final RpcController controller, final GetRequest request) throws ServiceException { long before = EnvironmentEdgeManager.currentTime(); OperationQuota quota = null; HRegion region = null; try { checkOpen(); requestCount.increment(); rpcGetRequestCount.increment(); region = getRegion(request.getRegion()); rejectIfInStandByState(region); GetResponse.Builder builder = GetResponse.newBuilder(); ClientProtos.Get get = request.getGet(); // An asynchbase client, https://github.com/OpenTSDB/asynchbase, starts by trying to do // a get closest before. Throwing the UnknownProtocolException signals it that it needs // to switch and do hbase2 protocol (HBase servers do not tell clients what versions // they are; its a problem for non-native clients like asynchbase. HBASE-20225. if (get.hasClosestRowBefore() && get.getClosestRowBefore()) { throw new UnknownProtocolException("Is this a pre-hbase-1.0.0 or asynchbase client? " + "Client is invoking getClosestRowBefore removed in hbase-2.0.0 replaced by " + "reverse Scan."); } Boolean existence = null; Result r = null; RpcCallContext context = RpcServer.getCurrentCall().orElse(null); quota = getRpcQuotaManager().checkQuota(region, OperationQuota.OperationType.GET); Get clientGet = ProtobufUtil.toGet(get); if (get.getExistenceOnly() && region.getCoprocessorHost() != null) { existence = region.getCoprocessorHost().preExists(clientGet); } if (existence == null) { if (context != null) { r = get(clientGet, (region), null, context); } else { // for test purpose r = region.get(clientGet); } if (get.getExistenceOnly()) { boolean exists = r.getExists(); if (region.getCoprocessorHost() != null) { exists = region.getCoprocessorHost().postExists(clientGet, exists); } existence = exists; } } if (existence != null) { ClientProtos.Result pbr = ProtobufUtil.toResult(existence, region.getRegionInfo().getReplicaId() != 0); builder.setResult(pbr); } else if (r != null) { ClientProtos.Result pbr; if (isClientCellBlockSupport(context) && controller instanceof HBaseRpcController && VersionInfoUtil.hasMinimumVersion(context.getClientVersionInfo(), 1, 3)) { pbr = ProtobufUtil.toResultNoData(r); ((HBaseRpcController) controller).setCellScanner(CellUtil.createCellScanner(r .rawCells())); addSize(context, r, null); } else { pbr = ProtobufUtil.toResult(r); } builder.setResult(pbr); } //r.cells is null when an table.exists(get) call if (r != null && r.rawCells() != null) { quota.addGetResult(r); } return builder.build(); } catch (IOException ie) { throw new ServiceException(ie); } finally { final MetricsRegionServer metricsRegionServer = regionServer.getMetrics(); if (metricsRegionServer != null) { TableDescriptor td = region != null? region.getTableDescriptor(): null; if (td != null) { metricsRegionServer.updateGet( td.getTableName(), EnvironmentEdgeManager.currentTime() - before); } } if (quota != null) { quota.close(); } } } private Result get(Get get, HRegion region, RegionScannersCloseCallBack closeCallBack, RpcCallContext context) throws IOException { region.prepareGet(get); boolean stale = region.getRegionInfo().getReplicaId() != 0; // This method is almost the same as HRegion#get. List<Cell> results = new ArrayList<>(); long before = EnvironmentEdgeManager.currentTime(); // pre-get CP hook if (region.getCoprocessorHost() != null) { if (region.getCoprocessorHost().preGet(get, results)) { region.metricsUpdateForGet(results, before); return Result .create(results, get.isCheckExistenceOnly() ? !results.isEmpty() : null, stale); } } Scan scan = new Scan(get); if (scan.getLoadColumnFamiliesOnDemandValue() == null) { scan.setLoadColumnFamiliesOnDemand(region.isLoadingCfsOnDemandDefault()); } RegionScannerImpl scanner = null; try { scanner = region.getScanner(scan); scanner.next(results); } finally { if (scanner != null) { if (closeCallBack == null) { // If there is a context then the scanner can be added to the current // RpcCallContext. The rpc callback will take care of closing the // scanner, for eg in case // of get() context.setCallBack(scanner); } else { // The call is from multi() where the results from the get() are // aggregated and then send out to the // rpc. The rpccall back will close all such scanners created as part // of multi(). closeCallBack.addScanner(scanner); } } } // post-get CP hook if (region.getCoprocessorHost() != null) { region.getCoprocessorHost().postGet(get, results); } region.metricsUpdateForGet(results, before); return Result.create(results, get.isCheckExistenceOnly() ? !results.isEmpty() : null, stale); } private void checkBatchSizeAndLogLargeSize(MultiRequest request) throws ServiceException { int sum = 0; String firstRegionName = null; for (RegionAction regionAction : request.getRegionActionList()) { if (sum == 0) { firstRegionName = Bytes.toStringBinary(regionAction.getRegion().getValue().toByteArray()); } sum += regionAction.getActionCount(); } if (sum > rowSizeWarnThreshold) { ld.logBatchWarning(firstRegionName, sum, rowSizeWarnThreshold); if (rejectRowsWithSizeOverThreshold) { throw new ServiceException( "Rejecting large batch operation for current batch with firstRegionName: " + firstRegionName + " , Requested Number of Rows: " + sum + " , Size Threshold: " + rowSizeWarnThreshold); } } } private void failRegionAction(MultiResponse.Builder responseBuilder, RegionActionResult.Builder regionActionResultBuilder, RegionAction regionAction, CellScanner cellScanner, Throwable error) { rpcServer.getMetrics().exception(error); regionActionResultBuilder.setException(ResponseConverter.buildException(error)); responseBuilder.addRegionActionResult(regionActionResultBuilder.build()); // All Mutations in this RegionAction not executed as we can not see the Region online here // in this RS. Will be retried from Client. Skipping all the Cells in CellScanner // corresponding to these Mutations. if (cellScanner != null) { skipCellsForMutations(regionAction.getActionList(), cellScanner); } } private boolean isReplicationRequest(Action action) { // replication request can only be put or delete. if (!action.hasMutation()) { return false; } MutationProto mutation = action.getMutation(); MutationType type = mutation.getMutateType(); if (type != MutationType.PUT && type != MutationType.DELETE) { return false; } // replication will set a special attribute so we can make use of it to decide whether a request // is for replication. return mutation.getAttributeList().stream().map(p -> p.getName()) .filter(n -> n.equals(ReplicationUtils.REPLICATION_ATTR_NAME)).findAny().isPresent(); } /** * Execute multiple actions on a table: get, mutate, and/or execCoprocessor * @param rpcc the RPC controller * @param request the multi request * @throws ServiceException */ @Override public MultiResponse multi(final RpcController rpcc, final MultiRequest request) throws ServiceException { try { checkOpen(); } catch (IOException ie) { throw new ServiceException(ie); } checkBatchSizeAndLogLargeSize(request); // rpc controller is how we bring in data via the back door; it is unprotobuf'ed data. // It is also the conduit via which we pass back data. HBaseRpcController controller = (HBaseRpcController)rpcc; CellScanner cellScanner = controller != null ? controller.cellScanner(): null; if (controller != null) { controller.setCellScanner(null); } long nonceGroup = request.hasNonceGroup() ? request.getNonceGroup() : HConstants.NO_NONCE; MultiResponse.Builder responseBuilder = MultiResponse.newBuilder(); RegionActionResult.Builder regionActionResultBuilder = RegionActionResult.newBuilder(); this.rpcMultiRequestCount.increment(); this.requestCount.increment(); ActivePolicyEnforcement spaceQuotaEnforcement = getSpaceQuotaManager().getActiveEnforcements(); // We no longer use MultiRequest#condition. Instead, we use RegionAction#condition. The // following logic is for backward compatibility as old clients still use // MultiRequest#condition in case of checkAndMutate with RowMutations. if (request.hasCondition()) { if (request.getRegionActionList().isEmpty()) { // If the region action list is empty, do nothing. responseBuilder.setProcessed(true); return responseBuilder.build(); } RegionAction regionAction = request.getRegionAction(0); // When request.hasCondition() is true, regionAction.getAtomic() should be always true. So // we can assume regionAction.getAtomic() is true here. assert regionAction.getAtomic(); OperationQuota quota; HRegion region; RegionSpecifier regionSpecifier = regionAction.getRegion(); try { region = getRegion(regionSpecifier); quota = getRpcQuotaManager().checkQuota(region, regionAction.getActionList()); } catch (IOException e) { failRegionAction(responseBuilder, regionActionResultBuilder, regionAction, cellScanner, e); return responseBuilder.build(); } try { boolean rejectIfFromClient = shouldRejectRequestsFromClient(region); // We only allow replication in standby state and it will not set the atomic flag. if (rejectIfFromClient) { failRegionAction(responseBuilder, regionActionResultBuilder, regionAction, cellScanner, new DoNotRetryIOException(region.getRegionInfo().getRegionNameAsString() + " is in STANDBY state")); return responseBuilder.build(); } try { Condition condition = request.getCondition(); byte[] row = condition.getRow().toByteArray(); byte[] family = condition.hasFamily() ? condition.getFamily().toByteArray() : null; byte[] qualifier = condition.hasQualifier() ? condition.getQualifier().toByteArray() : null; CompareOperator op = condition.hasCompareType() ? CompareOperator.valueOf(condition.getCompareType().name()) : null; ByteArrayComparable comparator = condition.hasComparator() ? ProtobufUtil.toComparator(condition.getComparator()) : null; Filter filter = condition.hasFilter() ? ProtobufUtil.toFilter(condition.getFilter()) : null; TimeRange timeRange = condition.hasTimeRange() ? ProtobufUtil.toTimeRange(condition.getTimeRange()) : TimeRange.allTime(); boolean processed = checkAndRowMutate(region, regionAction.getActionList(), cellScanner, row, family, qualifier, op, comparator, filter, timeRange, regionActionResultBuilder, spaceQuotaEnforcement); responseBuilder.setProcessed(processed); } catch (IOException e) { rpcServer.getMetrics().exception(e); // As it's an atomic operation with a condition, we may expect it's a global failure. regionActionResultBuilder.setException(ResponseConverter.buildException(e)); } } finally { quota.close(); } responseBuilder.addRegionActionResult(regionActionResultBuilder.build()); ClientProtos.RegionLoadStats regionLoadStats = region.getLoadStatistics(); if (regionLoadStats != null) { responseBuilder.setRegionStatistics(MultiRegionLoadStats.newBuilder() .addRegion(regionSpecifier).addStat(regionLoadStats).build()); } return responseBuilder.build(); } // this will contain all the cells that we need to return. It's created later, if needed. List<CellScannable> cellsToReturn = null; RegionScannersCloseCallBack closeCallBack = null; RpcCallContext context = RpcServer.getCurrentCall().orElse(null); Map<RegionSpecifier, ClientProtos.RegionLoadStats> regionStats = new HashMap<>(request .getRegionActionCount()); for (RegionAction regionAction : request.getRegionActionList()) { OperationQuota quota; HRegion region; RegionSpecifier regionSpecifier = regionAction.getRegion(); regionActionResultBuilder.clear(); try { region = getRegion(regionSpecifier); quota = getRpcQuotaManager().checkQuota(region, regionAction.getActionList()); } catch (IOException e) { failRegionAction(responseBuilder, regionActionResultBuilder, regionAction, cellScanner, e); continue; // For this region it's a failure. } try { boolean rejectIfFromClient = shouldRejectRequestsFromClient(region); if (regionAction.hasCondition()) { // We only allow replication in standby state and it will not set the atomic flag. if (rejectIfFromClient) { failRegionAction(responseBuilder, regionActionResultBuilder, regionAction, cellScanner, new DoNotRetryIOException(region.getRegionInfo() .getRegionNameAsString() + " is in STANDBY state")); continue; } try { Condition condition = regionAction.getCondition(); byte[] row = condition.getRow().toByteArray(); byte[] family = condition.hasFamily() ? condition.getFamily().toByteArray() : null; byte[] qualifier = condition.hasQualifier() ? condition.getQualifier().toByteArray() : null; CompareOperator op = condition.hasCompareType() ? CompareOperator.valueOf(condition.getCompareType().name()) : null; ByteArrayComparable comparator = condition.hasComparator() ? ProtobufUtil.toComparator(condition.getComparator()) : null; Filter filter = condition.hasFilter() ? ProtobufUtil.toFilter(condition.getFilter()) : null; TimeRange timeRange = condition.hasTimeRange() ? ProtobufUtil.toTimeRange(condition.getTimeRange()) : TimeRange.allTime(); boolean processed; if (regionAction.hasAtomic() && regionAction.getAtomic()) { // RowMutations processed = checkAndRowMutate(region, regionAction.getActionList(), cellScanner, row, family, qualifier, op, comparator, filter, timeRange, regionActionResultBuilder, spaceQuotaEnforcement); } else { if (regionAction.getActionList().isEmpty()) { // If the region action list is empty, do nothing. regionActionResultBuilder.setProcessed(true); continue; } Action action = regionAction.getAction(0); if (action.hasGet()) { throw new DoNotRetryIOException("CheckAndMutate doesn't support GET=" + action.getGet()); } MutationProto mutation = action.getMutation(); switch (mutation.getMutateType()) { case PUT: Put put = ProtobufUtil.toPut(mutation, cellScanner); checkCellSizeLimit(region, put); // Throws an exception when violated spaceQuotaEnforcement.getPolicyEnforcement(region).check(put); quota.addMutation(put); if (filter != null) { processed = region.checkAndMutate(row, filter, timeRange, put); } else { processed = region.checkAndMutate(row, family, qualifier, op, comparator, timeRange, put); } break; case DELETE: Delete delete = ProtobufUtil.toDelete(mutation, cellScanner); checkCellSizeLimit(region, delete); spaceQuotaEnforcement.getPolicyEnforcement(region).check(delete); quota.addMutation(delete); if (filter != null) { processed = region.checkAndMutate(row, filter, timeRange, delete); } else { processed = region.checkAndMutate(row, family, qualifier, op, comparator, timeRange, delete); } break; default: throw new DoNotRetryIOException("CheckAndMutate doesn't support " + mutation.getMutateType()); } // To unify the response format with doNonAtomicRegionMutation and read through // client's AsyncProcess we have to add an empty result instance per operation regionActionResultBuilder.addResultOrException( ClientProtos.ResultOrException.newBuilder().setIndex(0).build()); } regionActionResultBuilder.setProcessed(processed); } catch (IOException e) { rpcServer.getMetrics().exception(e); // As it's an atomic operation with a condition, we may expect it's a global failure. regionActionResultBuilder.setException(ResponseConverter.buildException(e)); } } else if (regionAction.hasAtomic() && regionAction.getAtomic()) { // We only allow replication in standby state and it will not set the atomic flag. if (rejectIfFromClient) { failRegionAction(responseBuilder, regionActionResultBuilder, regionAction, cellScanner, new DoNotRetryIOException(region.getRegionInfo().getRegionNameAsString() + " is in STANDBY state")); continue; } try { doAtomicBatchOp(regionActionResultBuilder, region, quota, regionAction.getActionList(), cellScanner, spaceQuotaEnforcement); regionActionResultBuilder.setProcessed(true); // We no longer use MultiResponse#processed. Instead, we use // RegionActionResult#condition. This is for backward compatibility for old clients. responseBuilder.setProcessed(true); } catch (IOException e) { rpcServer.getMetrics().exception(e); // As it's atomic, we may expect it's a global failure. regionActionResultBuilder.setException(ResponseConverter.buildException(e)); } } else { if (rejectIfFromClient && regionAction.getActionCount() > 0 && !isReplicationRequest( regionAction.getAction(0))) { // fail if it is not a replication request failRegionAction(responseBuilder, regionActionResultBuilder, regionAction, cellScanner, new DoNotRetryIOException(region.getRegionInfo().getRegionNameAsString() + " is in STANDBY state")); continue; } // doNonAtomicRegionMutation manages the exception internally if (context != null && closeCallBack == null) { // An RpcCallBack that creates a list of scanners that needs to perform callBack // operation on completion of multiGets. // Set this only once closeCallBack = new RegionScannersCloseCallBack(); context.setCallBack(closeCallBack); } cellsToReturn = doNonAtomicRegionMutation(region, quota, regionAction, cellScanner, regionActionResultBuilder, cellsToReturn, nonceGroup, closeCallBack, context, spaceQuotaEnforcement); } } finally { quota.close(); } responseBuilder.addRegionActionResult(regionActionResultBuilder.build()); ClientProtos.RegionLoadStats regionLoadStats = region.getLoadStatistics(); if (regionLoadStats != null) { regionStats.put(regionSpecifier, regionLoadStats); } } // Load the controller with the Cells to return. if (cellsToReturn != null && !cellsToReturn.isEmpty() && controller != null) { controller.setCellScanner(CellUtil.createCellScanner(cellsToReturn)); } MultiRegionLoadStats.Builder builder = MultiRegionLoadStats.newBuilder(); for(Entry<RegionSpecifier, ClientProtos.RegionLoadStats> stat: regionStats.entrySet()){ builder.addRegion(stat.getKey()); builder.addStat(stat.getValue()); } responseBuilder.setRegionStatistics(builder); return responseBuilder.build(); } private void skipCellsForMutations(List<Action> actions, CellScanner cellScanner) { if (cellScanner == null) { return; } for (Action action : actions) { skipCellsForMutation(action, cellScanner); } } private void skipCellsForMutation(Action action, CellScanner cellScanner) { if (cellScanner == null) { return; } try { if (action.hasMutation()) { MutationProto m = action.getMutation(); if (m.hasAssociatedCellCount()) { for (int i = 0; i < m.getAssociatedCellCount(); i++) { cellScanner.advance(); } } } } catch (IOException e) { // No need to handle these Individual Muatation level issue. Any way this entire RegionAction // marked as failed as we could not see the Region here. At client side the top level // RegionAction exception will be considered first. LOG.error("Error while skipping Cells in CellScanner for invalid Region Mutations", e); } } /** * Mutate data in a table. * * @param rpcc the RPC controller * @param request the mutate request */ @Override public MutateResponse mutate(final RpcController rpcc, final MutateRequest request) throws ServiceException { // rpc controller is how we bring in data via the back door; it is unprotobuf'ed data. // It is also the conduit via which we pass back data. HBaseRpcController controller = (HBaseRpcController)rpcc; CellScanner cellScanner = controller != null ? controller.cellScanner() : null; OperationQuota quota = null; RpcCallContext context = RpcServer.getCurrentCall().orElse(null); ActivePolicyEnforcement spaceQuotaEnforcement = null; MutationType type = null; HRegion region = null; long before = EnvironmentEdgeManager.currentTime(); // Clear scanner so we are not holding on to reference across call. if (controller != null) { controller.setCellScanner(null); } try { checkOpen(); requestCount.increment(); rpcMutateRequestCount.increment(); region = getRegion(request.getRegion()); rejectIfInStandByState(region); MutateResponse.Builder builder = MutateResponse.newBuilder(); MutationProto mutation = request.getMutation(); if (!region.getRegionInfo().isMetaRegion()) { regionServer.getMemStoreFlusher().reclaimMemStoreMemory(); } long nonceGroup = request.hasNonceGroup() ? request.getNonceGroup() : HConstants.NO_NONCE; Result r = null; Boolean processed = null; type = mutation.getMutateType(); quota = getRpcQuotaManager().checkQuota(region, OperationQuota.OperationType.MUTATE); spaceQuotaEnforcement = getSpaceQuotaManager().getActiveEnforcements(); switch (type) { case APPEND: // TODO: this doesn't actually check anything. r = append(region, quota, mutation, cellScanner, nonceGroup, spaceQuotaEnforcement); break; case INCREMENT: // TODO: this doesn't actually check anything. r = increment(region, quota, mutation, cellScanner, nonceGroup, spaceQuotaEnforcement); break; case PUT: Put put = ProtobufUtil.toPut(mutation, cellScanner); checkCellSizeLimit(region, put); // Throws an exception when violated spaceQuotaEnforcement.getPolicyEnforcement(region).check(put); quota.addMutation(put); if (request.hasCondition()) { Condition condition = request.getCondition(); byte[] row = condition.getRow().toByteArray(); byte[] family = condition.hasFamily() ? condition.getFamily().toByteArray() : null; byte[] qualifier = condition.hasQualifier() ? condition.getQualifier().toByteArray() : null; CompareOperator op = condition.hasCompareType() ? CompareOperator.valueOf(condition.getCompareType().name()) : null; ByteArrayComparable comparator = condition.hasComparator() ? ProtobufUtil.toComparator(condition.getComparator()) : null; Filter filter = condition.hasFilter() ? ProtobufUtil.toFilter(condition.getFilter()) : null; TimeRange timeRange = condition.hasTimeRange() ? ProtobufUtil.toTimeRange(condition.getTimeRange()) : TimeRange.allTime(); if (region.getCoprocessorHost() != null) { if (filter != null) { processed = region.getCoprocessorHost().preCheckAndPut(row, filter, put); } else { processed = region.getCoprocessorHost() .preCheckAndPut(row, family, qualifier, op, comparator, put); } } if (processed == null) { boolean result; if (filter != null) { result = region.checkAndMutate(row, filter, timeRange, put); } else { result = region.checkAndMutate(row, family, qualifier, op, comparator, timeRange, put); } if (region.getCoprocessorHost() != null) { if (filter != null) { result = region.getCoprocessorHost().postCheckAndPut(row, filter, put, result); } else { result = region.getCoprocessorHost() .postCheckAndPut(row, family, qualifier, op, comparator, put, result); } } processed = result; } } else { region.put(put); processed = Boolean.TRUE; } break; case DELETE: Delete delete = ProtobufUtil.toDelete(mutation, cellScanner); checkCellSizeLimit(region, delete); spaceQuotaEnforcement.getPolicyEnforcement(region).check(delete); quota.addMutation(delete); if (request.hasCondition()) { Condition condition = request.getCondition(); byte[] row = condition.getRow().toByteArray(); byte[] family = condition.hasFamily() ? condition.getFamily().toByteArray() : null; byte[] qualifier = condition.hasQualifier() ? condition.getQualifier().toByteArray() : null; CompareOperator op = condition.hasCompareType() ? CompareOperator.valueOf(condition.getCompareType().name()) : null; ByteArrayComparable comparator = condition.hasComparator() ? ProtobufUtil.toComparator(condition.getComparator()) : null; Filter filter = condition.hasFilter() ? ProtobufUtil.toFilter(condition.getFilter()) : null; TimeRange timeRange = condition.hasTimeRange() ? ProtobufUtil.toTimeRange(condition.getTimeRange()) : TimeRange.allTime(); if (region.getCoprocessorHost() != null) { if (filter != null) { processed = region.getCoprocessorHost().preCheckAndDelete(row, filter, delete); } else { processed = region.getCoprocessorHost() .preCheckAndDelete(row, family, qualifier, op, comparator, delete); } } if (processed == null) { boolean result; if (filter != null) { result = region.checkAndMutate(row, filter, timeRange, delete); } else { result = region.checkAndMutate(row, family, qualifier, op, comparator, timeRange, delete); } if (region.getCoprocessorHost() != null) { if (filter != null) { result = region.getCoprocessorHost().postCheckAndDelete(row, filter, delete, result); } else { result = region.getCoprocessorHost() .postCheckAndDelete(row, family, qualifier, op, comparator, delete, result); } } processed = result; } } else { region.delete(delete); processed = Boolean.TRUE; } break; default: throw new DoNotRetryIOException("Unsupported mutate type: " + type.name()); } if (processed != null) { builder.setProcessed(processed.booleanValue()); } boolean clientCellBlockSupported = isClientCellBlockSupport(context); addResult(builder, r, controller, clientCellBlockSupported); if (clientCellBlockSupported) { addSize(context, r, null); } return builder.build(); } catch (IOException ie) { regionServer.checkFileSystem(); throw new ServiceException(ie); } finally { if (quota != null) { quota.close(); } // Update metrics final MetricsRegionServer metricsRegionServer = regionServer.getMetrics(); if (metricsRegionServer != null && type != null) { long after = EnvironmentEdgeManager.currentTime(); switch (type) { case DELETE: if (request.hasCondition()) { metricsRegionServer.updateCheckAndDelete(after - before); } else { metricsRegionServer.updateDelete( region == null ? null : region.getRegionInfo().getTable(), after - before); } break; case PUT: if (request.hasCondition()) { metricsRegionServer.updateCheckAndPut(after - before); } else { metricsRegionServer.updatePut( region == null ? null : region.getRegionInfo().getTable(),after - before); } break; default: break; } } } } // This is used to keep compatible with the old client implementation. Consider remove it if we // decide to drop the support of the client that still sends close request to a region scanner // which has already been exhausted. @Deprecated private static final IOException SCANNER_ALREADY_CLOSED = new IOException() { private static final long serialVersionUID = -4305297078988180130L; @Override public synchronized Throwable fillInStackTrace() { return this; } }; private RegionScannerHolder getRegionScanner(ScanRequest request) throws IOException { String scannerName = Long.toString(request.getScannerId()); RegionScannerHolder rsh = scanners.get(scannerName); if (rsh == null) { // just ignore the next or close request if scanner does not exists. if (closedScanners.getIfPresent(scannerName) != null) { throw SCANNER_ALREADY_CLOSED; } else { LOG.warn("Client tried to access missing scanner " + scannerName); throw new UnknownScannerException( "Unknown scanner '" + scannerName + "'. This can happen due to any of the following " + "reasons: a) Scanner id given is wrong, b) Scanner lease expired because of " + "long wait between consecutive client checkins, c) Server may be closing down, " + "d) RegionServer restart during upgrade.\nIf the issue is due to reason (b), a " + "possible fix would be increasing the value of" + "'hbase.client.scanner.timeout.period' configuration."); } } rejectIfInStandByState(rsh.r); RegionInfo hri = rsh.s.getRegionInfo(); // Yes, should be the same instance if (regionServer.getOnlineRegion(hri.getRegionName()) != rsh.r) { String msg = "Region has changed on the scanner " + scannerName + ": regionName=" + hri.getRegionNameAsString() + ", scannerRegionName=" + rsh.r; LOG.warn(msg + ", closing..."); scanners.remove(scannerName); try { rsh.s.close(); } catch (IOException e) { LOG.warn("Getting exception closing " + scannerName, e); } finally { try { regionServer.getLeaseManager().cancelLease(scannerName); } catch (LeaseException e) { LOG.warn("Getting exception closing " + scannerName, e); } } throw new NotServingRegionException(msg); } return rsh; } private RegionScannerHolder newRegionScanner(ScanRequest request, ScanResponse.Builder builder) throws IOException { HRegion region = getRegion(request.getRegion()); rejectIfInStandByState(region); ClientProtos.Scan protoScan = request.getScan(); boolean isLoadingCfsOnDemandSet = protoScan.hasLoadColumnFamiliesOnDemand(); Scan scan = ProtobufUtil.toScan(protoScan); // if the request doesn't set this, get the default region setting. if (!isLoadingCfsOnDemandSet) { scan.setLoadColumnFamiliesOnDemand(region.isLoadingCfsOnDemandDefault()); } if (!scan.hasFamilies()) { // Adding all families to scanner for (byte[] family : region.getTableDescriptor().getColumnFamilyNames()) { scan.addFamily(family); } } if (region.getCoprocessorHost() != null) { // preScannerOpen is not allowed to return a RegionScanner. Only post hook can create a // wrapper for the core created RegionScanner region.getCoprocessorHost().preScannerOpen(scan); } RegionScannerImpl coreScanner = region.getScanner(scan); Shipper shipper = coreScanner; RegionScanner scanner = coreScanner; if (region.getCoprocessorHost() != null) { scanner = region.getCoprocessorHost().postScannerOpen(scan, scanner); } long scannerId = scannerIdGenerator.generateNewScannerId(); builder.setScannerId(scannerId); builder.setMvccReadPoint(scanner.getMvccReadPoint()); builder.setTtl(scannerLeaseTimeoutPeriod); String scannerName = String.valueOf(scannerId); return addScanner(scannerName, scanner, shipper, region, scan.isNeedCursorResult()); } private void checkScanNextCallSeq(ScanRequest request, RegionScannerHolder rsh) throws OutOfOrderScannerNextException { // if nextCallSeq does not match throw Exception straight away. This needs to be // performed even before checking of Lease. // See HBASE-5974 if (request.hasNextCallSeq()) { long callSeq = request.getNextCallSeq(); if (!rsh.incNextCallSeq(callSeq)) { throw new OutOfOrderScannerNextException("Expected nextCallSeq: " + rsh.getNextCallSeq() + " But the nextCallSeq got from client: " + request.getNextCallSeq() + "; request=" + TextFormat.shortDebugString(request)); } } } private void addScannerLeaseBack(LeaseManager.Lease lease) { try { regionServer.getLeaseManager().addLease(lease); } catch (LeaseStillHeldException e) { // should not happen as the scanner id is unique. throw new AssertionError(e); } } private long getTimeLimit(HBaseRpcController controller, boolean allowHeartbeatMessages) { // Set the time limit to be half of the more restrictive timeout value (one of the // timeout values must be positive). In the event that both values are positive, the // more restrictive of the two is used to calculate the limit. if (allowHeartbeatMessages && (scannerLeaseTimeoutPeriod > 0 || rpcTimeout > 0)) { long timeLimitDelta; if (scannerLeaseTimeoutPeriod > 0 && rpcTimeout > 0) { timeLimitDelta = Math.min(scannerLeaseTimeoutPeriod, rpcTimeout); } else { timeLimitDelta = scannerLeaseTimeoutPeriod > 0 ? scannerLeaseTimeoutPeriod : rpcTimeout; } if (controller != null && controller.getCallTimeout() > 0) { timeLimitDelta = Math.min(timeLimitDelta, controller.getCallTimeout()); } // Use half of whichever timeout value was more restrictive... But don't allow // the time limit to be less than the allowable minimum (could cause an // immediatate timeout before scanning any data). timeLimitDelta = Math.max(timeLimitDelta / 2, minimumScanTimeLimitDelta); // XXX: Can not use EnvironmentEdge here because TestIncrementTimeRange use a // ManualEnvironmentEdge. Consider using System.nanoTime instead. return System.currentTimeMillis() + timeLimitDelta; } // Default value of timeLimit is negative to indicate no timeLimit should be // enforced. return -1L; } private void checkLimitOfRows(int numOfCompleteRows, int limitOfRows, boolean moreRows, ScannerContext scannerContext, ScanResponse.Builder builder) { if (numOfCompleteRows >= limitOfRows) { if (LOG.isTraceEnabled()) { LOG.trace("Done scanning, limit of rows reached, moreRows: " + moreRows + " scannerContext: " + scannerContext); } builder.setMoreResults(false); } } // return whether we have more results in region. private void scan(HBaseRpcController controller, ScanRequest request, RegionScannerHolder rsh, long maxQuotaResultSize, int maxResults, int limitOfRows, List<Result> results, ScanResponse.Builder builder, MutableObject<Object> lastBlock, RpcCallContext context) throws IOException { HRegion region = rsh.r; RegionScanner scanner = rsh.s; long maxResultSize; if (scanner.getMaxResultSize() > 0) { maxResultSize = Math.min(scanner.getMaxResultSize(), maxQuotaResultSize); } else { maxResultSize = maxQuotaResultSize; } // This is cells inside a row. Default size is 10 so if many versions or many cfs, // then we'll resize. Resizings show in profiler. Set it higher than 10. For now // arbitrary 32. TODO: keep record of general size of results being returned. List<Cell> values = new ArrayList<>(32); region.startRegionOperation(Operation.SCAN); try { int numOfResults = 0; int numOfCompleteRows = 0; long before = EnvironmentEdgeManager.currentTime(); synchronized (scanner) { boolean stale = (region.getRegionInfo().getReplicaId() != 0); boolean clientHandlesPartials = request.hasClientHandlesPartials() && request.getClientHandlesPartials(); boolean clientHandlesHeartbeats = request.hasClientHandlesHeartbeats() && request.getClientHandlesHeartbeats(); // On the server side we must ensure that the correct ordering of partial results is // returned to the client to allow them to properly reconstruct the partial results. // If the coprocessor host is adding to the result list, we cannot guarantee the // correct ordering of partial results and so we prevent partial results from being // formed. boolean serverGuaranteesOrderOfPartials = results.isEmpty(); boolean allowPartialResults = clientHandlesPartials && serverGuaranteesOrderOfPartials; boolean moreRows = false; // Heartbeat messages occur when the processing of the ScanRequest is exceeds a // certain time threshold on the server. When the time threshold is exceeded, the // server stops the scan and sends back whatever Results it has accumulated within // that time period (may be empty). Since heartbeat messages have the potential to // create partial Results (in the event that the timeout occurs in the middle of a // row), we must only generate heartbeat messages when the client can handle both // heartbeats AND partials boolean allowHeartbeatMessages = clientHandlesHeartbeats && allowPartialResults; long timeLimit = getTimeLimit(controller, allowHeartbeatMessages); final LimitScope sizeScope = allowPartialResults ? LimitScope.BETWEEN_CELLS : LimitScope.BETWEEN_ROWS; final LimitScope timeScope = allowHeartbeatMessages ? LimitScope.BETWEEN_CELLS : LimitScope.BETWEEN_ROWS; boolean trackMetrics = request.hasTrackScanMetrics() && request.getTrackScanMetrics(); // Configure with limits for this RPC. Set keep progress true since size progress // towards size limit should be kept between calls to nextRaw ScannerContext.Builder contextBuilder = ScannerContext.newBuilder(true); // maxResultSize - either we can reach this much size for all cells(being read) data or sum // of heap size occupied by cells(being read). Cell data means its key and value parts. contextBuilder.setSizeLimit(sizeScope, maxResultSize, maxResultSize); contextBuilder.setBatchLimit(scanner.getBatch()); contextBuilder.setTimeLimit(timeScope, timeLimit); contextBuilder.setTrackMetrics(trackMetrics); ScannerContext scannerContext = contextBuilder.build(); boolean limitReached = false; while (numOfResults < maxResults) { // Reset the batch progress to 0 before every call to RegionScanner#nextRaw. The // batch limit is a limit on the number of cells per Result. Thus, if progress is // being tracked (i.e. scannerContext.keepProgress() is true) then we need to // reset the batch progress between nextRaw invocations since we don't want the // batch progress from previous calls to affect future calls scannerContext.setBatchProgress(0); // Collect values to be returned here moreRows = scanner.nextRaw(values, scannerContext); if (!values.isEmpty()) { if (limitOfRows > 0) { // First we need to check if the last result is partial and we have a row change. If // so then we need to increase the numOfCompleteRows. if (results.isEmpty()) { if (rsh.rowOfLastPartialResult != null && !CellUtil.matchingRows(values.get(0), rsh.rowOfLastPartialResult)) { numOfCompleteRows++; checkLimitOfRows(numOfCompleteRows, limitOfRows, moreRows, scannerContext, builder); } } else { Result lastResult = results.get(results.size() - 1); if (lastResult.mayHaveMoreCellsInRow() && !CellUtil.matchingRows(values.get(0), lastResult.getRow())) { numOfCompleteRows++; checkLimitOfRows(numOfCompleteRows, limitOfRows, moreRows, scannerContext, builder); } } if (builder.hasMoreResults() && !builder.getMoreResults()) { break; } } boolean mayHaveMoreCellsInRow = scannerContext.mayHaveMoreCellsInRow(); Result r = Result.create(values, null, stale, mayHaveMoreCellsInRow); lastBlock.setValue(addSize(context, r, lastBlock.getValue())); results.add(r); numOfResults++; if (!mayHaveMoreCellsInRow && limitOfRows > 0) { numOfCompleteRows++; checkLimitOfRows(numOfCompleteRows, limitOfRows, moreRows, scannerContext, builder); if (builder.hasMoreResults() && !builder.getMoreResults()) { break; } } } else if (!moreRows && !results.isEmpty()) { // No more cells for the scan here, we need to ensure that the mayHaveMoreCellsInRow of // last result is false. Otherwise it's possible that: the first nextRaw returned // because BATCH_LIMIT_REACHED (BTW it happen to exhaust all cells of the scan),so the // last result's mayHaveMoreCellsInRow will be true. while the following nextRaw will // return with moreRows=false, which means moreResultsInRegion would be false, it will // be a contradictory state (HBASE-21206). int lastIdx = results.size() - 1; Result r = results.get(lastIdx); if (r.mayHaveMoreCellsInRow()) { results.set(lastIdx, Result.create(r.rawCells(), r.getExists(), r.isStale(), false)); } } boolean sizeLimitReached = scannerContext.checkSizeLimit(LimitScope.BETWEEN_ROWS); boolean timeLimitReached = scannerContext.checkTimeLimit(LimitScope.BETWEEN_ROWS); boolean resultsLimitReached = numOfResults >= maxResults; limitReached = sizeLimitReached || timeLimitReached || resultsLimitReached; if (limitReached || !moreRows) { // We only want to mark a ScanResponse as a heartbeat message in the event that // there are more values to be read server side. If there aren't more values, // marking it as a heartbeat is wasteful because the client will need to issue // another ScanRequest only to realize that they already have all the values if (moreRows && timeLimitReached) { // Heartbeat messages occur when the time limit has been reached. builder.setHeartbeatMessage(true); if (rsh.needCursor) { Cell cursorCell = scannerContext.getLastPeekedCell(); if (cursorCell != null) { builder.setCursor(ProtobufUtil.toCursor(cursorCell)); } } } break; } values.clear(); } builder.setMoreResultsInRegion(moreRows); // Check to see if the client requested that we track metrics server side. If the // client requested metrics, retrieve the metrics from the scanner context. if (trackMetrics) { Map<String, Long> metrics = scannerContext.getMetrics().getMetricsMap(); ScanMetrics.Builder metricBuilder = ScanMetrics.newBuilder(); NameInt64Pair.Builder pairBuilder = NameInt64Pair.newBuilder(); for (Entry<String, Long> entry : metrics.entrySet()) { pairBuilder.setName(entry.getKey()); pairBuilder.setValue(entry.getValue()); metricBuilder.addMetrics(pairBuilder.build()); } builder.setScanMetrics(metricBuilder.build()); } } long end = EnvironmentEdgeManager.currentTime(); long responseCellSize = context != null ? context.getResponseCellSize() : 0; region.getMetrics().updateScanTime(end - before); final MetricsRegionServer metricsRegionServer = regionServer.getMetrics(); if (metricsRegionServer != null) { metricsRegionServer.updateScanSize( region.getTableDescriptor().getTableName(), responseCellSize); metricsRegionServer.updateScanTime( region.getTableDescriptor().getTableName(), end - before); } } finally { region.closeRegionOperation(); } // coprocessor postNext hook if (region.getCoprocessorHost() != null) { region.getCoprocessorHost().postScannerNext(scanner, results, maxResults, true); } } /** * Scan data in a table. * * @param controller the RPC controller * @param request the scan request * @throws ServiceException */ @Override public ScanResponse scan(final RpcController controller, final ScanRequest request) throws ServiceException { if (controller != null && !(controller instanceof HBaseRpcController)) { throw new UnsupportedOperationException( "We only do " + "HBaseRpcControllers! FIX IF A PROBLEM: " + controller); } if (!request.hasScannerId() && !request.hasScan()) { throw new ServiceException( new DoNotRetryIOException("Missing required input: scannerId or scan")); } try { checkOpen(); } catch (IOException e) { if (request.hasScannerId()) { String scannerName = Long.toString(request.getScannerId()); if (LOG.isDebugEnabled()) { LOG.debug( "Server shutting down and client tried to access missing scanner " + scannerName); } final LeaseManager leaseManager = regionServer.getLeaseManager(); if (leaseManager != null) { try { leaseManager.cancelLease(scannerName); } catch (LeaseException le) { // No problem, ignore if (LOG.isTraceEnabled()) { LOG.trace("Un-able to cancel lease of scanner. It could already be closed."); } } } } throw new ServiceException(e); } requestCount.increment(); rpcScanRequestCount.increment(); RegionScannerHolder rsh; ScanResponse.Builder builder = ScanResponse.newBuilder(); try { if (request.hasScannerId()) { // The downstream projects such as AsyncHBase in OpenTSDB need this value. See HBASE-18000 // for more details. builder.setScannerId(request.getScannerId()); rsh = getRegionScanner(request); } else { rsh = newRegionScanner(request, builder); } } catch (IOException e) { if (e == SCANNER_ALREADY_CLOSED) { // Now we will close scanner automatically if there are no more results for this region but // the old client will still send a close request to us. Just ignore it and return. return builder.build(); } throw new ServiceException(e); } HRegion region = rsh.r; String scannerName = rsh.scannerName; LeaseManager.Lease lease; try { // Remove lease while its being processed in server; protects against case // where processing of request takes > lease expiration time. lease = regionServer.getLeaseManager().removeLease(scannerName); } catch (LeaseException e) { throw new ServiceException(e); } if (request.hasRenew() && request.getRenew()) { // add back and return addScannerLeaseBack(lease); try { checkScanNextCallSeq(request, rsh); } catch (OutOfOrderScannerNextException e) { throw new ServiceException(e); } return builder.build(); } OperationQuota quota; try { quota = getRpcQuotaManager().checkQuota(region, OperationQuota.OperationType.SCAN); } catch (IOException e) { addScannerLeaseBack(lease); throw new ServiceException(e); } try { checkScanNextCallSeq(request, rsh); } catch (OutOfOrderScannerNextException e) { addScannerLeaseBack(lease); throw new ServiceException(e); } // Now we have increased the next call sequence. If we give client an error, the retry will // never success. So we'd better close the scanner and return a DoNotRetryIOException to client // and then client will try to open a new scanner. boolean closeScanner = request.hasCloseScanner() ? request.getCloseScanner() : false; int rows; // this is scan.getCaching if (request.hasNumberOfRows()) { rows = request.getNumberOfRows(); } else { rows = closeScanner ? 0 : 1; } RpcCallContext context = RpcServer.getCurrentCall().orElse(null); // now let's do the real scan. long maxQuotaResultSize = Math.min(maxScannerResultSize, quota.getReadAvailable()); RegionScanner scanner = rsh.s; // this is the limit of rows for this scan, if we the number of rows reach this value, we will // close the scanner. int limitOfRows; if (request.hasLimitOfRows()) { limitOfRows = request.getLimitOfRows(); } else { limitOfRows = -1; } MutableObject<Object> lastBlock = new MutableObject<>(); boolean scannerClosed = false; try { List<Result> results = new ArrayList<>(Math.min(rows, 512)); if (rows > 0) { boolean done = false; // Call coprocessor. Get region info from scanner. if (region.getCoprocessorHost() != null) { Boolean bypass = region.getCoprocessorHost().preScannerNext(scanner, results, rows); if (!results.isEmpty()) { for (Result r : results) { lastBlock.setValue(addSize(context, r, lastBlock.getValue())); } } if (bypass != null && bypass.booleanValue()) { done = true; } } if (!done) { scan((HBaseRpcController) controller, request, rsh, maxQuotaResultSize, rows, limitOfRows, results, builder, lastBlock, context); } else { builder.setMoreResultsInRegion(!results.isEmpty()); } } else { // This is a open scanner call with numberOfRow = 0, so set more results in region to true. builder.setMoreResultsInRegion(true); } quota.addScanResult(results); addResults(builder, results, (HBaseRpcController) controller, RegionReplicaUtil.isDefaultReplica(region.getRegionInfo()), isClientCellBlockSupport(context)); if (scanner.isFilterDone() && results.isEmpty()) { // If the scanner's filter - if any - is done with the scan // only set moreResults to false if the results is empty. This is used to keep compatible // with the old scan implementation where we just ignore the returned results if moreResults // is false. Can remove the isEmpty check after we get rid of the old implementation. builder.setMoreResults(false); } // Later we may close the scanner depending on this flag so here we need to make sure that we // have already set this flag. assert builder.hasMoreResultsInRegion(); // we only set moreResults to false in the above code, so set it to true if we haven't set it // yet. if (!builder.hasMoreResults()) { builder.setMoreResults(true); } if (builder.getMoreResults() && builder.getMoreResultsInRegion() && !results.isEmpty()) { // Record the last cell of the last result if it is a partial result // We need this to calculate the complete rows we have returned to client as the // mayHaveMoreCellsInRow is true does not mean that there will be extra cells for the // current row. We may filter out all the remaining cells for the current row and just // return the cells of the nextRow when calling RegionScanner.nextRaw. So here we need to // check for row change. Result lastResult = results.get(results.size() - 1); if (lastResult.mayHaveMoreCellsInRow()) { rsh.rowOfLastPartialResult = lastResult.getRow(); } else { rsh.rowOfLastPartialResult = null; } } if (!builder.getMoreResults() || !builder.getMoreResultsInRegion() || closeScanner) { scannerClosed = true; closeScanner(region, scanner, scannerName, context); } return builder.build(); } catch (IOException e) { try { // scanner is closed here scannerClosed = true; // The scanner state might be left in a dirty state, so we will tell the Client to // fail this RPC and close the scanner while opening up another one from the start of // row that the client has last seen. closeScanner(region, scanner, scannerName, context); // If it is a DoNotRetryIOException already, throw as it is. Unfortunately, DNRIOE is // used in two different semantics. // (1) The first is to close the client scanner and bubble up the exception all the way // to the application. This is preferred when the exception is really un-recoverable // (like CorruptHFileException, etc). Plain DoNotRetryIOException also falls into this // bucket usually. // (2) Second semantics is to close the current region scanner only, but continue the // client scanner by overriding the exception. This is usually UnknownScannerException, // OutOfOrderScannerNextException, etc where the region scanner has to be closed, but the // application-level ClientScanner has to continue without bubbling up the exception to // the client. See ClientScanner code to see how it deals with these special exceptions. if (e instanceof DoNotRetryIOException) { throw e; } // If it is a FileNotFoundException, wrap as a // DoNotRetryIOException. This can avoid the retry in ClientScanner. if (e instanceof FileNotFoundException) { throw new DoNotRetryIOException(e); } // We closed the scanner already. Instead of throwing the IOException, and client // retrying with the same scannerId only to get USE on the next RPC, we directly throw // a special exception to save an RPC. if (VersionInfoUtil.hasMinimumVersion(context.getClientVersionInfo(), 1, 4)) { // 1.4.0+ clients know how to handle throw new ScannerResetException("Scanner is closed on the server-side", e); } else { // older clients do not know about SRE. Just throw USE, which they will handle throw new UnknownScannerException("Throwing UnknownScannerException to reset the client" + " scanner state for clients older than 1.3.", e); } } catch (IOException ioe) { throw new ServiceException(ioe); } } finally { if (!scannerClosed) { // Adding resets expiration time on lease. // the closeCallBack will be set in closeScanner so here we only care about shippedCallback if (context != null) { context.setCallBack(rsh.shippedCallback); } else { // When context != null, adding back the lease will be done in callback set above. addScannerLeaseBack(lease); } } quota.close(); } } private void closeScanner(HRegion region, RegionScanner scanner, String scannerName, RpcCallContext context) throws IOException { if (region.getCoprocessorHost() != null) { if (region.getCoprocessorHost().preScannerClose(scanner)) { // bypass the actual close. return; } } RegionScannerHolder rsh = scanners.remove(scannerName); if (rsh != null) { if (context != null) { context.setCallBack(rsh.closeCallBack); } else { rsh.s.close(); } if (region.getCoprocessorHost() != null) { region.getCoprocessorHost().postScannerClose(scanner); } closedScanners.put(scannerName, scannerName); } } @Override public CoprocessorServiceResponse execRegionServerService(RpcController controller, CoprocessorServiceRequest request) throws ServiceException { rpcPreCheck("execRegionServerService"); return regionServer.execRegionServerService(controller, request); } @Override public UpdateConfigurationResponse updateConfiguration( RpcController controller, UpdateConfigurationRequest request) throws ServiceException { try { this.regionServer.updateConfiguration(); } catch (Exception e) { throw new ServiceException(e); } return UpdateConfigurationResponse.getDefaultInstance(); } @Override public GetSpaceQuotaSnapshotsResponse getSpaceQuotaSnapshots( RpcController controller, GetSpaceQuotaSnapshotsRequest request) throws ServiceException { try { final RegionServerSpaceQuotaManager manager = regionServer.getRegionServerSpaceQuotaManager(); final GetSpaceQuotaSnapshotsResponse.Builder builder = GetSpaceQuotaSnapshotsResponse.newBuilder(); if (manager != null) { final Map<TableName,SpaceQuotaSnapshot> snapshots = manager.copyQuotaSnapshots(); for (Entry<TableName,SpaceQuotaSnapshot> snapshot : snapshots.entrySet()) { builder.addSnapshots(TableQuotaSnapshot.newBuilder() .setTableName(ProtobufUtil.toProtoTableName(snapshot.getKey())) .setSnapshot(SpaceQuotaSnapshot.toProtoSnapshot(snapshot.getValue())) .build()); } } return builder.build(); } catch (Exception e) { throw new ServiceException(e); } } @Override public ClearRegionBlockCacheResponse clearRegionBlockCache(RpcController controller, ClearRegionBlockCacheRequest request) { ClearRegionBlockCacheResponse.Builder builder = ClearRegionBlockCacheResponse.newBuilder(); CacheEvictionStatsBuilder stats = CacheEvictionStats.builder(); List<HRegion> regions = getRegions(request.getRegionList(), stats); for (HRegion region : regions) { try { stats = stats.append(this.regionServer.clearRegionBlockCache(region)); } catch (Exception e) { stats.addException(region.getRegionInfo().getRegionName(), e); } } stats.withMaxCacheSize(regionServer.getBlockCache().map(BlockCache::getMaxSize).orElse(0L)); return builder.setStats(ProtobufUtil.toCacheEvictionStats(stats.build())).build(); } private void executeOpenRegionProcedures(OpenRegionRequest request, Map<TableName, TableDescriptor> tdCache) { long masterSystemTime = request.hasMasterSystemTime() ? request.getMasterSystemTime() : -1; for (RegionOpenInfo regionOpenInfo : request.getOpenInfoList()) { RegionInfo regionInfo = ProtobufUtil.toRegionInfo(regionOpenInfo.getRegion()); TableDescriptor tableDesc = tdCache.get(regionInfo.getTable()); if (tableDesc == null) { try { tableDesc = regionServer.getTableDescriptors().get(regionInfo.getTable()); } catch (IOException e) { // Here we do not fail the whole method since we also need deal with other // procedures, and we can not ignore this one, so we still schedule a // AssignRegionHandler and it will report back to master if we still can not get the // TableDescriptor. LOG.warn("Failed to get TableDescriptor of {}, will try again in the handler", regionInfo.getTable(), e); } } if (regionOpenInfo.getFavoredNodesCount() > 0) { regionServer.updateRegionFavoredNodesMapping(regionInfo.getEncodedName(), regionOpenInfo.getFavoredNodesList()); } long procId = regionOpenInfo.getOpenProcId(); if (regionServer.submitRegionProcedure(procId)) { regionServer.executorService.submit(AssignRegionHandler .create(regionServer, regionInfo, procId, tableDesc, masterSystemTime)); } } } private void executeCloseRegionProcedures(CloseRegionRequest request) { String encodedName; try { encodedName = ProtobufUtil.getRegionEncodedName(request.getRegion()); } catch (DoNotRetryIOException e) { throw new UncheckedIOException("Should not happen", e); } ServerName destination = request.hasDestinationServer() ? ProtobufUtil.toServerName(request.getDestinationServer()) : null; long procId = request.getCloseProcId(); if (regionServer.submitRegionProcedure(procId)) { regionServer.executorService.submit(UnassignRegionHandler .create(regionServer, encodedName, procId, false, destination)); } } private void executeProcedures(RemoteProcedureRequest request) { RSProcedureCallable callable; try { callable = Class.forName(request.getProcClass()).asSubclass(RSProcedureCallable.class) .getDeclaredConstructor().newInstance(); } catch (Exception e) { LOG.warn("Failed to instantiating remote procedure {}, pid={}", request.getProcClass(), request.getProcId(), e); regionServer.remoteProcedureComplete(request.getProcId(), e); return; } callable.init(request.getProcData().toByteArray(), regionServer); LOG.debug("Executing remote procedure {}, pid={}", callable.getClass(), request.getProcId()); regionServer.executeProcedure(request.getProcId(), callable); } @Override @QosPriority(priority = HConstants.ADMIN_QOS) public ExecuteProceduresResponse executeProcedures(RpcController controller, ExecuteProceduresRequest request) throws ServiceException { try { checkOpen(); throwOnWrongStartCode(request); regionServer.getRegionServerCoprocessorHost().preExecuteProcedures(); if (request.getOpenRegionCount() > 0) { // Avoid reading from the TableDescritor every time(usually it will read from the file // system) Map<TableName, TableDescriptor> tdCache = new HashMap<>(); request.getOpenRegionList().forEach(req -> executeOpenRegionProcedures(req, tdCache)); } if (request.getCloseRegionCount() > 0) { request.getCloseRegionList().forEach(this::executeCloseRegionProcedures); } if (request.getProcCount() > 0) { request.getProcList().forEach(this::executeProcedures); } regionServer.getRegionServerCoprocessorHost().postExecuteProcedures(); return ExecuteProceduresResponse.getDefaultInstance(); } catch (IOException e) { throw new ServiceException(e); } } @Override @QosPriority(priority = HConstants.ADMIN_QOS) public SlowLogResponses getSlowLogResponses(final RpcController controller, final SlowLogResponseRequest request) { final SlowLogRecorder slowLogRecorder = this.regionServer.getSlowLogRecorder(); final List<SlowLogPayload> slowLogPayloads; slowLogPayloads = slowLogRecorder != null ? slowLogRecorder.getSlowLogPayloads(request) : Collections.emptyList(); SlowLogResponses slowLogResponses = SlowLogResponses.newBuilder() .addAllSlowLogPayloads(slowLogPayloads) .build(); return slowLogResponses; } @Override @QosPriority(priority = HConstants.ADMIN_QOS) public SlowLogResponses getLargeLogResponses(final RpcController controller, final SlowLogResponseRequest request) { final SlowLogRecorder slowLogRecorder = this.regionServer.getSlowLogRecorder(); final List<SlowLogPayload> slowLogPayloads; slowLogPayloads = slowLogRecorder != null ? slowLogRecorder.getLargeLogPayloads(request) : Collections.emptyList(); SlowLogResponses slowLogResponses = SlowLogResponses.newBuilder() .addAllSlowLogPayloads(slowLogPayloads) .build(); return slowLogResponses; } @Override @QosPriority(priority = HConstants.ADMIN_QOS) public ClearSlowLogResponses clearSlowLogsResponses(final RpcController controller, final ClearSlowLogResponseRequest request) { final SlowLogRecorder slowLogRecorder = this.regionServer.getSlowLogRecorder(); boolean slowLogsCleaned = Optional.ofNullable(slowLogRecorder) .map(SlowLogRecorder::clearSlowLogPayloads).orElse(false); ClearSlowLogResponses clearSlowLogResponses = ClearSlowLogResponses.newBuilder() .setIsCleaned(slowLogsCleaned) .build(); return clearSlowLogResponses; } @VisibleForTesting public RpcScheduler getRpcScheduler() { return rpcServer.getScheduler(); } protected AccessChecker getAccessChecker() { return accessChecker; } protected ZKPermissionWatcher getZkPermissionWatcher() { return zkPermissionWatcher; } }