Package org.apache.hadoop.hbase.regionserver

Examples of org.apache.hadoop.hbase.regionserver.HRegionServer$SafeModeThread

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    admin.createTable(htd);

    // Starting a new RegionServer.
    JVMClusterUtil.RegionServerThread newRsThread = hbaseCluster
        .startRegionServer();
    final HRegionServer newRs = newRsThread.getRegionServer();

    // Move region to the new RegionServer.
    final HTable table = new HTable(TEST_UTIL.getConfiguration(), TEST_TABLE2);
    try {
      NavigableMap<HRegionInfo, ServerName> regions = table
          .getRegionLocations();
      final Map.Entry<HRegionInfo, ServerName> firstRegion = regions.entrySet()
          .iterator().next();

      PrivilegedExceptionAction moveAction = new PrivilegedExceptionAction() {
        public Object run() throws Exception {
          admin.move(firstRegion.getKey().getEncodedNameAsBytes(),
              Bytes.toBytes(newRs.getServerName().getServerName()));
          return null;
        }
      };
      SUPERUSER.runAs(moveAction);

      final int RETRIES_LIMIT = 10;
      int retries = 0;
      while (newRs.getOnlineRegions(TEST_TABLE2).size() < 1 && retries < RETRIES_LIMIT) {
        LOG.debug("Waiting for region to be opened. Already retried " + retries
            + " times.");
        try {
          Thread.sleep(1000);
        } catch (InterruptedException e) {
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    TableName TABLENAME =
        TableName.valueOf("TestHBACloseRegion");
    createTableWithDefaultConf(TABLENAME);

    HRegionInfo info = null;
    HRegionServer rs = TEST_UTIL.getRSForFirstRegionInTable(TABLENAME);
    List<HRegionInfo> onlineRegions = ProtobufUtil.getOnlineRegions(rs);
    for (HRegionInfo regionInfo : onlineRegions) {
      if (!regionInfo.getTable().isSystemTable()) {
        info = regionInfo;
        admin.closeRegionWithEncodedRegionName(regionInfo.getEncodedName(), rs
            .getServerName().getServerName());
      }
    }
    boolean isInList = ProtobufUtil.getOnlineRegions(rs).contains(info);
    long timeout = System.currentTimeMillis() + 10000;
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  public void testCloseRegionIfInvalidRegionNameIsPassed() throws Exception {
    byte[] TABLENAME = Bytes.toBytes("TestHBACloseRegion1");
    createTableWithDefaultConf(TABLENAME);

    HRegionInfo info = null;
    HRegionServer rs = TEST_UTIL.getRSForFirstRegionInTable(TABLENAME);
    List<HRegionInfo> onlineRegions = ProtobufUtil.getOnlineRegions(rs);
    for (HRegionInfo regionInfo : onlineRegions) {
      if (!regionInfo.isMetaTable()) {
        if (regionInfo.getRegionNameAsString().contains("TestHBACloseRegion1")) {
          info = regionInfo;
          try {
            admin.closeRegionWithEncodedRegionName("sample", rs.getServerName()
              .getServerName());
          } catch (NotServingRegionException nsre) {
            // expected, ignore it
          }
        }
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    TableName TABLENAME =
        TableName.valueOf("TestHBACloseRegion2");
    createTableWithDefaultConf(TABLENAME);

    HRegionInfo info = null;
    HRegionServer rs = TEST_UTIL.getRSForFirstRegionInTable(TABLENAME);
    List<HRegionInfo> onlineRegions = ProtobufUtil.getOnlineRegions(rs);
    for (HRegionInfo regionInfo : onlineRegions) {
      if (!regionInfo.isMetaTable()) {

        if (regionInfo.getRegionNameAsString().contains("TestHBACloseRegion2")) {
          info = regionInfo;
          admin.closeRegion(regionInfo.getRegionNameAsString(), rs
              .getServerName().getServerName());
        }
      }
    }
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  @Test (timeout=300000)
  public void testCloseRegionWhenServerNameIsNull() throws Exception {
    byte[] TABLENAME = Bytes.toBytes("TestHBACloseRegion3");
    createTableWithDefaultConf(TABLENAME);

    HRegionServer rs = TEST_UTIL.getRSForFirstRegionInTable(TABLENAME);

    try {
      List<HRegionInfo> onlineRegions = ProtobufUtil.getOnlineRegions(rs);
      for (HRegionInfo regionInfo : onlineRegions) {
        if (!regionInfo.isMetaTable()) {
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  @Test (timeout=300000)
  public void testCloseRegionWhenServerNameIsEmpty() throws Exception {
    byte[] TABLENAME = Bytes.toBytes("TestHBACloseRegionWhenServerNameIsEmpty");
    createTableWithDefaultConf(TABLENAME);

    HRegionServer rs = TEST_UTIL.getRSForFirstRegionInTable(TABLENAME);

    try {
      List<HRegionInfo> onlineRegions = ProtobufUtil.getOnlineRegions(rs);
      for (HRegionInfo regionInfo : onlineRegions) {
        if (!regionInfo.isMetaTable()) {
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  public void testCloseRegionWhenEncodedRegionNameIsNotGiven() throws Exception {
    byte[] TABLENAME = Bytes.toBytes("TestHBACloseRegion4");
    createTableWithDefaultConf(TABLENAME);

    HRegionInfo info = null;
    HRegionServer rs = TEST_UTIL.getRSForFirstRegionInTable(TABLENAME);

    List<HRegionInfo> onlineRegions = ProtobufUtil.getOnlineRegions(rs);
    for (HRegionInfo regionInfo : onlineRegions) {
      if (!regionInfo.isMetaTable()) {
        if (regionInfo.getRegionNameAsString().contains("TestHBACloseRegion4")) {
          info = regionInfo;
          try {
            admin.closeRegionWithEncodedRegionName(regionInfo
              .getRegionNameAsString(), rs.getServerName().getServerName());
          } catch (NotServingRegionException nsre) {
            // expected, ignore it.
          }
        }
      }
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    StringBuilder v = new StringBuilder(className);
    while (v.length() < 1000) {
      v.append(className);
    }
    byte[] value = Bytes.toBytes(v.toString());
    HRegionServer regionServer = startAndWriteData("TestLogRolling", value);
    LOG.info("after writing there are "
        + HLogUtilsForTests.getNumLogFiles(regionServer.getWAL()) + " log files");

    // flush all regions

    List<HRegion> regions = new ArrayList<HRegion>(regionServer
        .getOnlineRegionsLocalContext());
    for (HRegion r : regions) {
      r.flushcache();
    }
    admin.rollHLogWriter(regionServer.getServerName().getServerName());
    int count = HLogUtilsForTests.getNumLogFiles(regionServer.getWAL());
    LOG.info("after flushing all regions and rolling logs there are " +
        count + " log files");
    assertTrue(("actual count: " + count), count <= 2);
  }
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    HTableDescriptor desc = new HTableDescriptor(TableName.valueOf(tableName));
    desc.addFamily(new HColumnDescriptor(HConstants.CATALOG_FAMILY));
    admin.createTable(desc);
    HTable table = new HTable(TEST_UTIL.getConfiguration(), tableName);

    HRegionServer regionServer = TEST_UTIL.getRSForFirstRegionInTable(Bytes.toBytes(tableName));
    for (int i = 1; i <= 256; i++) { // 256 writes should cause 8 log rolls
      Put put = new Put(Bytes.toBytes("row" + String.format("%1$04d", i)));
      put.add(HConstants.CATALOG_FAMILY, null, value);
      table.put(put);
      if (i % 32 == 0) {
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   * Expire a region server's session
   * @param index which RS
   * @throws Exception
   */
  public void expireRegionServerSession(int index) throws Exception {
    HRegionServer rs = getMiniHBaseCluster().getRegionServer(index);
    expireSession(rs.getZooKeeper(), false);
    decrementMinRegionServerCount();
  }
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