Java Code Examples for org.apache.hadoop.hbase.ClusterStatus

The following examples show how to use org.apache.hadoop.hbase.ClusterStatus. These examples are extracted from open source projects. You can vote up the ones you like or vote down the ones you don't like, and go to the original project or source file by following the links above each example. You may check out the related API usage on the sidebar.
Example 1
Source Project: nifi   Source File: HBase_1_1_2_ClientService.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * As of Apache NiFi 1.5.0, due to changes made to
 * {@link SecurityUtil#loginKerberos(Configuration, String, String)}, which is used by this
 * class to authenticate a principal with Kerberos, HBase controller services no longer
 * attempt relogins explicitly.  For more information, please read the documentation for
 * {@link SecurityUtil#loginKerberos(Configuration, String, String)}.
 * <p/>
 * In previous versions of NiFi, a {@link org.apache.nifi.hadoop.KerberosTicketRenewer} was started
 * when the HBase controller service was enabled.  The use of a separate thread to explicitly relogin could cause
 * race conditions with the implicit relogin attempts made by hadoop/HBase code on a thread that references the same
 * {@link UserGroupInformation} instance.  One of these threads could leave the
 * {@link javax.security.auth.Subject} in {@link UserGroupInformation} to be cleared or in an unexpected state
 * while the other thread is attempting to use the {@link javax.security.auth.Subject}, resulting in failed
 * authentication attempts that would leave the HBase controller service in an unrecoverable state.
 *
 * @see SecurityUtil#loginKerberos(Configuration, String, String)
 */
@OnEnabled
public void onEnabled(final ConfigurationContext context) throws InitializationException, IOException, InterruptedException {
    this.connection = createConnection(context);

    // connection check
    if (this.connection != null) {
        final Admin admin = this.connection.getAdmin();
        if (admin != null) {
            admin.listTableNames();

            final ClusterStatus clusterStatus = admin.getClusterStatus();
            if (clusterStatus != null) {
                final ServerName master = clusterStatus.getMaster();
                if (master != null) {
                    masterAddress = master.getHostAndPort();
                } else {
                    masterAddress = null;
                }
            }
        }
    }
}
 
Example 2
Source Project: nifi   Source File: HBase_2_ClientService.java    License: Apache License 2.0 6 votes vote down vote up
/**
 * As of Apache NiFi 1.5.0, due to changes made to
 * {@link SecurityUtil#loginKerberos(Configuration, String, String)}, which is used by this
 * class to authenticate a principal with Kerberos, HBase controller services no longer
 * attempt relogins explicitly.  For more information, please read the documentation for
 * {@link SecurityUtil#loginKerberos(Configuration, String, String)}.
 * <p/>
 * In previous versions of NiFi, a {@link org.apache.nifi.hadoop.KerberosTicketRenewer} was started
 * when the HBase controller service was enabled.  The use of a separate thread to explicitly relogin could cause
 * race conditions with the implicit relogin attempts made by hadoop/HBase code on a thread that references the same
 * {@link UserGroupInformation} instance.  One of these threads could leave the
 * {@link javax.security.auth.Subject} in {@link UserGroupInformation} to be cleared or in an unexpected state
 * while the other thread is attempting to use the {@link javax.security.auth.Subject}, resulting in failed
 * authentication attempts that would leave the HBase controller service in an unrecoverable state.
 *
 * @see SecurityUtil#loginKerberos(Configuration, String, String)
 */
@OnEnabled
public void onEnabled(final ConfigurationContext context) throws InitializationException, IOException, InterruptedException {
    this.connection = createConnection(context);

    // connection check
    if (this.connection != null) {
        final Admin admin = this.connection.getAdmin();
        if (admin != null) {
            admin.listTableNames();

            final ClusterStatus clusterStatus = admin.getClusterStatus();
            if (clusterStatus != null) {
                final ServerName master = clusterStatus.getMaster();
                if (master != null) {
                    masterAddress = master.getHostAndPort();
                } else {
                    masterAddress = null;
                }
            }
        }
    }
}
 
Example 3
Source Project: pxf   Source File: HBaseLookupTable.java    License: Apache License 2.0 5 votes vote down vote up
/**
 * Constructs a connector to HBase lookup table. Requires calling
 * {@link #close()} to close {@link HBaseAdmin} instance.
 *
 * @param conf HBase configuration
 * @throws IOException when initializing HBaseAdmin fails
 */
public HBaseLookupTable(Configuration conf) throws Exception {
    hbaseConfiguration = conf;
    connection = ConnectionFactory.createConnection(hbaseConfiguration);
    admin = connection.getAdmin();
    ClusterStatus cs = admin.getClusterStatus();
    LOG.debug("HBase cluster has " + cs.getServersSize()
            + " region servers " + "(" + cs.getDeadServers() + " dead)");
}
 
Example 4
Source Project: hbase-tools   Source File: RegionLoadAdapter.java    License: Apache License 2.0 5 votes vote down vote up
public RegionLoadAdapter(HBaseAdmin admin, Map<byte[], HRegionInfo> regionMap, Args args) throws IOException {
    long timestamp = System.currentTimeMillis();

    ClusterStatus clusterStatus = admin.getClusterStatus();
    Collection<ServerName> serverNames = clusterStatus.getServers();
    for (ServerName serverName : serverNames) {
        HServerLoad serverLoad = clusterStatus.getLoad(serverName);
        for (Map.Entry<byte[], HServerLoad.RegionLoad> entry : serverLoad.getRegionsLoad().entrySet()) {
            if (regionMap.get(entry.getKey()) != null)
                regionLoadMap.put(regionMap.get(entry.getKey()), new RegionLoadDelegator(entry.getValue()));
        }
    }

    Util.printVerboseMessage(args, "RegionLoadAdapter", timestamp);
}
 
Example 5
Source Project: tajo   Source File: RegionSizeCalculator.java    License: Apache License 2.0 5 votes vote down vote up
private void init(RegionLocator regionLocator, Admin admin)
    throws IOException {
  if (!enabled(admin.getConfiguration())) {
    LOG.info("Region size calculation disabled.");
    return;
  }

  LOG.info("Calculating region sizes for table \"" + regionLocator.getName() + "\".");

  //get regions for table
  List<HRegionLocation> tableRegionInfos = regionLocator.getAllRegionLocations();
  Set<byte[]> tableRegions = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR);
  for (HRegionLocation regionInfo : tableRegionInfos) {
    tableRegions.add(regionInfo.getRegionInfo().getRegionName());
  }

  ClusterStatus clusterStatus = admin.getClusterStatus();
  Collection<ServerName> servers = clusterStatus.getServers();
  final long megaByte = 1024L * 1024L;

  //iterate all cluster regions, filter regions from our table and compute their size
  for (ServerName serverName: servers) {
    ServerLoad serverLoad = clusterStatus.getLoad(serverName);

    for (RegionLoad regionLoad: serverLoad.getRegionsLoad().values()) {
      byte[] regionId = regionLoad.getName();

      if (tableRegions.contains(regionId)) {

        long regionSizeBytes = (regionLoad.getStorefileSizeMB() + regionLoad.getMemStoreSizeMB()) * megaByte;
        sizeMap.put(regionId, regionSizeBytes);

        if (LOG.isDebugEnabled()) {
          LOG.debug("Region " + regionLoad.getNameAsString() + " has size " + regionSizeBytes);
        }
      }
    }
  }
  LOG.debug("Region sizes calculated");
}
 
Example 6
/**
 * Computes size of each region for table and given column families.
 * */
public HBaseRegionSizeCalculator(String tableName, Connection hbaseConnection) throws IOException {

    Table table = null;
    Admin admin = null;
    try {
        table = hbaseConnection.getTable(TableName.valueOf(tableName));
        admin = hbaseConnection.getAdmin();

        if (!enabled(table.getConfiguration())) {
            logger.info("Region size calculation disabled.");
            return;
        }

        logger.info("Calculating region sizes for table \"" + table.getName() + "\".");

        // Get regions for table.
        RegionLocator regionLocator = hbaseConnection.getRegionLocator(table.getName());
        List<HRegionLocation> regionLocationList = regionLocator.getAllRegionLocations();
        Set<byte[]> tableRegions = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR);

        for (HRegionLocation hRegionLocation : regionLocationList) {
            tableRegions.add(hRegionLocation.getRegionInfo().getRegionName());
        }

        ClusterStatus clusterStatus = admin.getClusterStatus();
        Collection<ServerName> servers = clusterStatus.getServers();
        final long megaByte = 1024L * 1024L;

        // Iterate all cluster regions, filter regions from our table and
        // compute their size.
        for (ServerName serverName : servers) {
            ServerLoad serverLoad = clusterStatus.getLoad(serverName);

            for (RegionLoad regionLoad : serverLoad.getRegionsLoad().values()) {
                byte[] regionId = regionLoad.getName();

                if (tableRegions.contains(regionId)) {

                    long regionSizeBytes = regionLoad.getStorefileSizeMB() * megaByte;
                    sizeMap.put(regionId, regionSizeBytes);
                    countMap.put(regionId, new Pair<>(regionLoad.getStores(), regionLoad.getStorefiles()));

                    if (regionSizeBytes == 0L) {
                        logger.info("Region " + regionLoad.getNameAsString() + " has size " + regionSizeBytes);
                    }
                }
            }
        }
    } finally {
        IOUtils.closeQuietly(admin);
    }

}
 
Example 7
Source Project: phoenix   Source File: IndexLoadBalancer.java    License: Apache License 2.0 4 votes vote down vote up
@Override
public void setClusterStatus(ClusterStatus st) {
    this.clusterStatus = st;
}
 
Example 8
Source Project: kylin   Source File: HBaseRegionSizeCalculator.java    License: Apache License 2.0 4 votes vote down vote up
/**
 * Computes size of each region for table and given column families.
 * */
public HBaseRegionSizeCalculator(String tableName, Connection hbaseConnection) throws IOException {

    Table table = null;
    Admin admin = null;
    try {
        table = hbaseConnection.getTable(TableName.valueOf(tableName));
        admin = hbaseConnection.getAdmin();

        if (!enabled(table.getConfiguration())) {
            logger.info("Region size calculation disabled.");
            return;
        }

        logger.info("Calculating region sizes for table \"" + table.getName() + "\".");

        // Get regions for table.
        RegionLocator regionLocator = hbaseConnection.getRegionLocator(table.getName());
        List<HRegionLocation> regionLocationList = regionLocator.getAllRegionLocations();
        Set<byte[]> tableRegions = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR);

        for (HRegionLocation hRegionLocation : regionLocationList) {
            tableRegions.add(hRegionLocation.getRegionInfo().getRegionName());
        }

        ClusterStatus clusterStatus = admin.getClusterStatus();
        Collection<ServerName> servers = clusterStatus.getServers();
        final long megaByte = 1024L * 1024L;

        // Iterate all cluster regions, filter regions from our table and
        // compute their size.
        for (ServerName serverName : servers) {
            ServerLoad serverLoad = clusterStatus.getLoad(serverName);

            for (RegionLoad regionLoad : serverLoad.getRegionsLoad().values()) {
                byte[] regionId = regionLoad.getName();

                if (tableRegions.contains(regionId)) {

                    long regionSizeBytes = regionLoad.getStorefileSizeMB() * megaByte;
                    sizeMap.put(regionId, regionSizeBytes);
                    countMap.put(regionId, new Pair<>(regionLoad.getStores(), regionLoad.getStorefiles()));

                    if (regionSizeBytes == 0L) {
                        logger.info("Region " + regionLoad.getNameAsString() + " has size " + regionSizeBytes);
                    }
                }
            }
        }
    } finally {
        IOUtils.closeQuietly(admin);
    }

}
 
Example 9
Source Project: Kylin   Source File: HBaseRegionSizeCalculator.java    License: Apache License 2.0 4 votes vote down vote up
/** Constructor for unit testing */
HBaseRegionSizeCalculator(HTable table, HBaseAdmin hBaseAdmin) throws IOException {

    try {
        if (!enabled(table.getConfiguration())) {
            logger.info("Region size calculation disabled.");
            return;
        }

        logger.info("Calculating region sizes for table \"" + new String(table.getTableName()) + "\".");

        // Get regions for table.
        Set<HRegionInfo> tableRegionInfos = table.getRegionLocations().keySet();
        Set<byte[]> tableRegions = new TreeSet<byte[]>(Bytes.BYTES_COMPARATOR);

        for (HRegionInfo regionInfo : tableRegionInfos) {
            tableRegions.add(regionInfo.getRegionName());
        }

        ClusterStatus clusterStatus = hBaseAdmin.getClusterStatus();
        Collection<ServerName> servers = clusterStatus.getServers();
        final long megaByte = 1024L * 1024L;

        // Iterate all cluster regions, filter regions from our table and
        // compute their size.
        for (ServerName serverName : servers) {
            ServerLoad serverLoad = clusterStatus.getLoad(serverName);

            for (RegionLoad regionLoad : serverLoad.getRegionsLoad().values()) {
                byte[] regionId = regionLoad.getName();

                if (tableRegions.contains(regionId)) {

                    long regionSizeBytes = regionLoad.getStorefileSizeMB() * megaByte;
                    sizeMap.put(regionId, regionSizeBytes);

                    // logger.info("Region " + regionLoad.getNameAsString()
                    // + " has size " + regionSizeBytes);
                }
            }
        }
    } finally {
        hBaseAdmin.close();
    }

}
 
Example 10
Source Project: spliceengine   Source File: HServer.java    License: GNU Affero General Public License v3.0 4 votes vote down vote up
public HServer(ServerName serverName, ClusterStatus clusterStatus) {
    this.serverName = serverName;
    this.clusterStatus = clusterStatus;
}