Examples of org.apache.hadoop.hbase.executor.EventType

Package org.apache.hadoop.hbase.executor

Examples of org.apache.hadoop.hbase.executor.EventType

org.apache.hadoop.hbase.executor.EventType

        if (data == null) {
          throw new IOException("Data is null, merging node "
            + node + " no longer exists");
        }
        RegionTransition rt = RegionTransition.parseFrom(data);
        EventType et = rt.getEventType();
        if (et == RS_ZK_REGION_MERGING) {
          ServerName serverName = rt.getServerName();
          if (!serverName.equals(expectedServer)) {
            throw new IOException("Merging node " + node + " is for "
              + serverName + ", not us " + expectedServer);

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    if (bytes == null) {
      // If it came back null, node does not exist.
      throw KeeperException.create(Code.NONODE);
    }
    RegionTransition rt = getRegionTransition(bytes);
    EventType et = rt.getEventType();
    if (!et.equals(expectedState)) {
      LOG.warn(zkw.prefix("Attempting to delete unassigned node " + encodedRegionName + " in " +
        expectedState + " state but node is in " + et + " state"));
      return false;
    }
    if (expectedVersion != -1

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          " not the expected version " + expectedVersion));
      return -1;
    }


    // Verify it is in expected state
    EventType et = rt.getEventType();
    if (!et.equals(EventType.RS_ZK_REGION_OPENING)) {
      String existingServer = (rt.getServerName() == null)
          ? "<unknown>" : rt.getServerName().toString();
      LOG.warn(zkw.prefix("Attempt to retransition the opening state of the unassigned node for "
          + encoded + " failed, the node existed but was in the state " + et +
          " set by the server " + existingServer));

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        " not the expected " + rt.getServerName()));
      return -1;
    }


    // Verify it is in expected state
    EventType et = rt.getEventType();
    if (!et.equals(beginState)) {
      String existingServer = (rt.getServerName() == null)
        ? "<unknown>" : rt.getServerName().toString();
      LOG.warn(zkw.prefix("Attempt to transition the unassigned node for " + encoded
        + " from " + beginState + " to " + endState + " failed, the node existed but"
        + " was in the state " + et + " set by the server " + existingServer));

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        if (data == null) {
          throw new IOException("Data is null, splitting node "
            + node + " no longer exists");
        }
        RegionTransition rt = RegionTransition.parseFrom(data);
        EventType et = rt.getEventType();
        if (et == RS_ZK_REGION_SPLITTING) {
          ServerName serverName = rt.getServerName();
          if (!serverName.equals(expectedServer)) {
            throw new IOException("Splitting node " + node + " is for "
              + serverName + ", not us " + expectedServer);

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        // Get the region from region states map/meta. However, we
        // may still can't get it, for example, for online region merge,
        // the znode uses the new region to be created, which may not in meta
        // yet if the merging is still going on during the master recovery.
        hri = regionStates.getRegionInfo(rt.getRegionName());
        EventType et = rt.getEventType();
        if (hri == null && et != EventType.RS_ZK_REGION_MERGING
            && et != EventType.RS_ZK_REQUEST_REGION_MERGE) {
          LOG.warn("Couldn't find the region in recovering " + rt);
          return false;
        }

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   * It should be private but it is used by some test too.
   */
  void processRegionsInTransition(
      final RegionTransition rt, final HRegionInfo regionInfo,
      final int expectedVersion) throws KeeperException {
    EventType et = rt.getEventType();
    // Get ServerName.  Could not be null.
    final ServerName sn = rt.getServerName();
    final byte[] regionName = rt.getRegionName();
    final String encodedName = HRegionInfo.encodeRegionName(regionName);
    final String prettyPrintedRegionName = HRegionInfo.prettyPrint(encodedName);

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      if (data == null) {
        LOG.warn("Data is null, node " + node + " no longer exists");
        return;
      }
      RegionTransition rt = RegionTransition.parseFrom(data);
      EventType et = rt.getEventType();
      if (et == EventType.RS_ZK_REGION_OPENED) {
        LOG.debug("Region has transitioned to OPENED, allowing "
            + "watched event handlers to process");
        return;
      } else if (et != EventType.RS_ZK_REGION_OPENING && et != EventType.RS_ZK_REGION_FAILED_OPEN ) {

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      LOG.warn("Dropped merging! Not in state good for MERGING; rs_p="
        + rs_p + ", rs_a=" + rs_a + ", rs_b=" + rs_b);
      return false;
    }


    EventType et = rt.getEventType();
    if (et == EventType.RS_ZK_REQUEST_REGION_MERGE) {
      try {
        if (RegionMergeTransaction.transitionMergingNode(watcher, p,
            hri_a, hri_b, sn, -1, EventType.RS_ZK_REQUEST_REGION_MERGE,
            EventType.RS_ZK_REGION_MERGING) == -1) {
          byte[] data = ZKAssign.getData(watcher, encodedName);
          EventType currentType = null;
          if (data != null) {
            RegionTransition newRt = RegionTransition.parseFrom(data);
            currentType = newRt.getEventType();
          }
          if (currentType == null || (currentType != EventType.RS_ZK_REGION_MERGED

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      }
      regionStates.regionOnline(rs_p.getRegion(), sn);
    }


    HRegionInfo p = rs_p.getRegion();
    EventType et = rt.getEventType();
    if (et == EventType.RS_ZK_REQUEST_REGION_SPLIT) {
      try {
        if (SplitTransaction.transitionSplittingNode(watcher, p,
            hri_a, hri_b, sn, -1, EventType.RS_ZK_REQUEST_REGION_SPLIT,
            EventType.RS_ZK_REGION_SPLITTING) == -1) {
          byte[] data = ZKAssign.getData(watcher, encodedName);
          EventType currentType = null;
          if (data != null) {
            RegionTransition newRt = RegionTransition.parseFrom(data);
            currentType = newRt.getEventType();
          }
          if (currentType == null || (currentType != EventType.RS_ZK_REGION_SPLIT

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Related Classes of org.apache.hadoop.hbase.executor.EventType

org.apache.hadoop.hbase.coordination.ZkRegionMergeCoordination

org.apache.hadoop.hbase.coordination.ZKSplitTransactionCoordination

org.apache.hadoop.hbase.master.AssignmentManager

org.apache.hadoop.hbase.regionserver.IndexSplitTransaction

org.apache.hadoop.hbase.regionserver.RegionMergeTransaction

org.apache.hadoop.hbase.regionserver.SplitTransaction

org.apache.hadoop.hbase.zookeeper.ZKAssign

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