/** * 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.replication; import static org.hamcrest.CoreMatchers.containsString; import static org.junit.Assert.assertFalse; import static org.junit.Assert.assertThat; import static org.junit.Assert.assertTrue; import static org.junit.Assert.fail; import java.io.IOException; import java.util.Arrays; import org.apache.hadoop.fs.FileSystem; import org.apache.hadoop.fs.Path; import org.apache.hadoop.hbase.DoNotRetryIOException; import org.apache.hadoop.hbase.HBaseClassTestRule; import org.apache.hadoop.hbase.client.Append; import org.apache.hadoop.hbase.client.Delete; import org.apache.hadoop.hbase.client.Get; import org.apache.hadoop.hbase.client.Mutation; import org.apache.hadoop.hbase.client.Put; import org.apache.hadoop.hbase.client.RetriesExhaustedException; import org.apache.hadoop.hbase.client.RowMutations; import org.apache.hadoop.hbase.client.Table; import org.apache.hadoop.hbase.master.MasterFileSystem; import org.apache.hadoop.hbase.testclassification.LargeTests; import org.apache.hadoop.hbase.testclassification.ReplicationTests; import org.apache.hadoop.hbase.util.Bytes; import org.junit.Assert; import org.junit.ClassRule; import org.junit.Test; import org.junit.experimental.categories.Category; @Category({ ReplicationTests.class, LargeTests.class }) public class TestSyncReplicationStandBy extends SyncReplicationTestBase { @ClassRule public static final HBaseClassTestRule CLASS_RULE = HBaseClassTestRule.forClass(TestSyncReplicationStandBy.class); @FunctionalInterface private interface TableAction { void call(Table table) throws IOException; } private void assertDisallow(Table table, TableAction action) throws IOException { try { action.call(table); fail("Should not allow the action"); } catch (DoNotRetryIOException | RetriesExhaustedException e) { // expected assertThat(e.getMessage(), containsString("STANDBY")); } } @Test public void testStandby() throws Exception { MasterFileSystem mfs = UTIL2.getHBaseCluster().getMaster().getMasterFileSystem(); Path remoteWALDir = getRemoteWALDir(mfs, PEER_ID); assertFalse(mfs.getWALFileSystem().exists(remoteWALDir)); UTIL2.getAdmin().transitReplicationPeerSyncReplicationState(PEER_ID, SyncReplicationState.STANDBY); assertTrue(mfs.getWALFileSystem().exists(remoteWALDir)); try (Table table = UTIL2.getConnection().getTable(TABLE_NAME)) { assertDisallow(table, t -> t.get(new Get(Bytes.toBytes("row")))); assertDisallow(table, t -> t.put(new Put(Bytes.toBytes("row")).addColumn(CF, CQ, Bytes.toBytes("row")))); assertDisallow(table, t -> t.delete(new Delete(Bytes.toBytes("row")))); assertDisallow(table, t -> t.incrementColumnValue(Bytes.toBytes("row"), CF, CQ, 1)); assertDisallow(table, t -> t.append(new Append(Bytes.toBytes("row")).addColumn(CF, CQ, Bytes.toBytes("row")))); assertDisallow(table, t -> t.get(Arrays.asList(new Get(Bytes.toBytes("row")), new Get(Bytes.toBytes("row1"))))); assertDisallow(table, t -> t.put( Arrays.asList(new Put(Bytes.toBytes("row")).addColumn(CF, CQ, Bytes.toBytes("row")), new Put(Bytes.toBytes("row1")).addColumn(CF, CQ, Bytes.toBytes("row1"))))); assertDisallow(table, t -> t.mutateRow(new RowMutations(Bytes.toBytes("row")) .add((Mutation) new Put(Bytes.toBytes("row")).addColumn(CF, CQ, Bytes.toBytes("row"))))); } // We should still allow replication writes writeAndVerifyReplication(UTIL1, UTIL2, 0, 100); // Remove the peers in ACTIVE & STANDBY cluster. FileSystem fs2 = REMOTE_WAL_DIR2.getFileSystem(UTIL2.getConfiguration()); Assert.assertTrue(fs2.exists(getRemoteWALDir(REMOTE_WAL_DIR2, PEER_ID))); UTIL2.getAdmin().transitReplicationPeerSyncReplicationState(PEER_ID, SyncReplicationState.DOWNGRADE_ACTIVE); Assert.assertFalse(fs2.exists(getRemoteWALDir(REMOTE_WAL_DIR2, PEER_ID))); Assert.assertFalse(fs2.exists(getReplayRemoteWALs(REMOTE_WAL_DIR2, PEER_ID))); UTIL1.getAdmin().removeReplicationPeer(PEER_ID); verifyRemovedPeer(PEER_ID, REMOTE_WAL_DIR1, UTIL1); // Peer remoteWAL dir will be renamed to replay WAL dir when transit from S to DA, and the // replay WAL dir will be removed after replaying all WALs, so create a emtpy dir here to test // whether the removeReplicationPeer would remove the remoteWAL dir. fs2.create(getRemoteWALDir(REMOTE_WAL_DIR2, PEER_ID)); fs2.create(getReplayRemoteWALs(REMOTE_WAL_DIR2, PEER_ID)); Assert.assertTrue(fs2.exists(getRemoteWALDir(REMOTE_WAL_DIR2, PEER_ID))); Assert.assertTrue(fs2.exists(getReplayRemoteWALs(REMOTE_WAL_DIR2, PEER_ID))); UTIL2.getAdmin().removeReplicationPeer(PEER_ID); verifyRemovedPeer(PEER_ID, REMOTE_WAL_DIR2, UTIL2); } }