Examples of org.apache.hadoop.hbase.RegionTransition.toByteArray()

Class org.apache.hadoop.hbase.RegionTransition

Examples of org.apache.hadoop.hbase.RegionTransition.toByteArray()

org.apache.hadoop.hbase.RegionTransition.toByteArray()
@return This instance serialized into a byte array @see #parseFrom(byte[])

    am.getZKTable().setEnabledTable(REGIONINFO.getTable());
    RegionTransition data = RegionTransition.createRegionTransition(EventType.RS_ZK_REGION_SPLITTING,
        REGIONINFO.getRegionName(), SERVERNAME_A);
    String node = ZKAssign.getNodeName(this.watcher, REGIONINFO.getEncodedName());
    // create znode in M_ZK_REGION_CLOSING state.
    ZKUtil.createAndWatch(this.watcher, node, data.toByteArray());


    try {
      processServerShutdownHandler(ct, am, regionSplitDone);
      // check znode deleted or not.
      // In both cases the znode should be deleted.

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    // RegionTransitionData data = new
    // RegionTransitionData(EventType.M_ZK_REGION_CLOSING,
    // REGIONINFO.getRegionName(), SERVERNAME_A);
    String node = ZKAssign.getNodeName(this.watcher, REGIONINFO.getEncodedName());
    // create znode in M_ZK_REGION_CLOSING state.
    ZKUtil.createAndWatch(this.watcher, node, data.toByteArray());


    try {
      processServerShutdownHandler(ct, am, false);
      // check znode deleted or not.
      // In both cases the znode should be deleted.

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    RegionTransition rt =
      RegionTransition.createRegionTransition(EventType.RS_ZK_REGION_SPLITTING,
        region.getRegionName(), serverName);


    String node = ZKAssign.getNodeName(zkw, region.getEncodedName());
    if (!ZKUtil.createEphemeralNodeAndWatch(zkw, node, rt.toByteArray())) {
      throw new IOException("Failed create of ephemeral " + node);
    }
    // Transition node from SPLITTING to SPLITTING and pick up version so we
    // can be sure this znode is ours; version is needed deleting.
    return transitionNodeSplitting(zkw, region, serverName, -1);

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      + region.getEncodedName() + " in PENDING_MERGE state"));
    byte [] payload = HRegionInfo.toDelimitedByteArray(region, a, b);
    RegionTransition rt = RegionTransition.createRegionTransition(
      RS_ZK_REQUEST_REGION_MERGE, region.getRegionName(), serverName, payload);
    String node = ZKAssign.getNodeName(zkw, region.getEncodedName());
    if (!ZKUtil.createEphemeralNodeAndWatch(zkw, node, rt.toByteArray())) {
      throw new IOException("Failed create of ephemeral " + node);
    }
  }


  /**

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    LOG.debug(zkw.prefix("Creating unassigned node " +
      region.getEncodedName() + " in OFFLINE state"));
    RegionTransition rt =
      RegionTransition.createRegionTransition(event, region.getRegionName(), serverName);
    String node = getNodeName(zkw, region.getEncodedName());
    ZKUtil.createAndWatch(zkw, node, rt.toByteArray());
  }


  /**
   * Creates an unassigned node in the OFFLINE state for the specified region.
   * <p>

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      region.getEncodedName() + " with OFFLINE state"));
    RegionTransition rt =
      RegionTransition.createRegionTransition(
          EventType.M_ZK_REGION_OFFLINE, region.getRegionName(), serverName);
    String node = getNodeName(zkw, region.getEncodedName());
    ZKUtil.asyncCreate(zkw, node, rt.toByteArray(), cb, ctx);
  }


  /**
   * Creates or force updates an unassigned node to the OFFLINE state for the
   * specified region.

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      HRegionInfo region, ServerName serverName) throws KeeperException {
    LOG.debug(zkw.prefix("Creating (or updating) unassigned node " +
      region.getEncodedName() + " with OFFLINE state"));
    RegionTransition rt = RegionTransition.createRegionTransition(EventType.M_ZK_REGION_OFFLINE,
      region.getRegionName(), serverName, HConstants.EMPTY_BYTE_ARRAY);
    byte [] data = rt.toByteArray();
    String node = getNodeName(zkw, region.getEncodedName());
    zkw.sync(node);
    int version = ZKUtil.checkExists(zkw, node);
    if (version == -1) {
      return ZKUtil.createAndWatch(zkw, node, data);

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    LOG.debug(zkw.prefix("Creating unassigned node " +
      region.getEncodedName() + " in a CLOSING state"));
    RegionTransition rt = RegionTransition.createRegionTransition(EventType.M_ZK_REGION_CLOSING,
      region.getRegionName(), serverName, HConstants.EMPTY_BYTE_ARRAY);
    String node = getNodeName(zkw, region.getEncodedName());
    return ZKUtil.createAndWatch(zkw, node, rt.toByteArray());
  }


  // RegionServer methods


  /**

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    // Write new data, ensuring data has not changed since we last read it
    try {
      rt = RegionTransition.createRegionTransition(
          EventType.RS_ZK_REGION_OPENING, region.getRegionName(), serverName, null);
      if(!ZKUtil.setData(zkw, node, rt.toByteArray(), stat.getVersion())) {
        LOG.warn(zkw.prefix("Attempt to retransition the opening state of the " +
            "unassigned node for " + encoded + " failed, " +
            "the node existed and was in the expected state but then when " +
            "setting data we got a version mismatch"));
        return -1;

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    // Write new data, ensuring data has not changed since we last read it
    try {
      rt = RegionTransition.createRegionTransition(
          endState, region.getRegionName(), serverName, payload);
      if(!ZKUtil.setData(zkw, node, rt.toByteArray(), stat.getVersion())) {
        LOG.warn(zkw.prefix("Attempt to transition the " +
        "unassigned node for " + encoded +
        " from " + beginState + " to " + endState + " failed, " +
        "the node existed and was in the expected state but then when " +
        "setting data we got a version mismatch"));

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