Package org.apache.hadoop.hdfs.server.protocol

Examples of org.apache.hadoop.hdfs.server.protocol.DatanodeCommand

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      if (cmds != null) {
        return cmds;
      }

      //check distributed upgrade
      DatanodeCommand cmd = upgradeManager.getBroadcastCommand();
      if (cmd != null) {
        return new DatanodeCommand[] {cmd};
      }
      return null;
    } finally {
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   * Report the list blocks to the Namenode
   * @throws IOException
   */
  DatanodeCommand blockReport() throws IOException {
    // send block report if timer has expired.
    DatanodeCommand cmd = null;
    long startTime = now();
    if (startTime - lastBlockReport > dnConf.blockReportInterval) {

      // Flush any block information that precedes the block report. Otherwise
      // we have a chance that we will miss the delHint information
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            || (startTime - lastDeletedReport > dnConf.deleteReportInterval)) {
          reportReceivedDeletedBlocks();
          lastDeletedReport = startTime;
        }

        DatanodeCommand cmd = blockReport();
        processCommand(new DatanodeCommand[]{ cmd });

        // Now safe to start scanning the block pool.
        // If it has already been started, this is a no-op.
        if (dn.blockScanner != null) {
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          // Get back a list of local block(s) that are obsolete
          // and can be safely GC'ed.
          //
          long brStartTime = now();
          Block[] bReport = data.getBlockReport();
          DatanodeCommand cmd = namenode.blockReport(dnRegistration,
                  BlockListAsLongs.convertToArrayLongs(bReport));
          long brTime = now() - brStartTime;
          myMetrics.blockReports.inc(brTime);
          LOG.info("BlockReport of " + bReport.length +
              " blocks got processed in " + brTime + " msecs");
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   * @throws IOException
   */
  DatanodeCommand[] handleHeartbeat(DatanodeRegistration nodeReg,
      long capacity, long dfsUsed, long remaining,
      int xceiverCount, int xmitsInProgress) throws IOException {
    DatanodeCommand cmd = null;
    synchronized (heartbeats) {
      synchronized (datanodeMap) {
        DatanodeDescriptor nodeinfo = null;
        try {
          nodeinfo = getDatanode(nodeReg);
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          - xmitsInProgress;
      DatanodeCommand[] cmds = blockManager.getDatanodeManager().handleHeartbeat(
          nodeReg, blockPoolId, capacity, dfsUsed, remaining, blockPoolUsed,
          xceiverCount, maxTransfer, failedVolumes);
      if (cmds == null || cmds.length == 0) {
        DatanodeCommand cmd = upgradeManager.getBroadcastCommand();
        if (cmd != null) {
          cmds = new DatanodeCommand[] {cmd};
        }
      }
     
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   * Report the list blocks to the Namenode
   * @throws IOException
   */
  DatanodeCommand blockReport() throws IOException {
    // send block report if timer has expired.
    DatanodeCommand cmd = null;
    long startTime = now();
    if (startTime - lastBlockReport > dnConf.blockReportInterval) {

      // Flush any block information that precedes the block report. Otherwise
      // we have a chance that we will miss the delHint information
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            || (startTime - lastDeletedReport > dnConf.deleteReportInterval)) {
          reportReceivedDeletedBlocks();
          lastDeletedReport = startTime;
        }

        DatanodeCommand cmd = blockReport();
        processCommand(new DatanodeCommand[]{ cmd });

        // Now safe to start scanning the block pool.
        // If it has already been started, this is a no-op.
        if (dn.blockScanner != null) {
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  }

  @Override
  public BlockReportResponseProto blockReport(RpcController controller,
      BlockReportRequestProto request) throws ServiceException {
    DatanodeCommand cmd = null;
    StorageBlockReport[] report =
        new StorageBlockReport[request.getReportsCount()];
   
    int index = 0;
    for (StorageBlockReportProto s : request.getReportsList()) {
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      if (cmds != null) {
        return cmds;
      }

      //check distributed upgrade
      DatanodeCommand cmd = upgradeManager.getBroadcastCommand();
      if (cmd != null) {
        return new DatanodeCommand[] {cmd};
      }
      return null;
    } finally {
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Related Classes of org.apache.hadoop.hdfs.server.protocol.DatanodeCommand

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  • org.apache.hadoop.hdfs.protocolPB.DatanodeProtocolServerSideTranslatorPB
  • org.apache.hadoop.hdfs.server.datanode.BPOfferService
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  • org.apache.hadoop.hdfs.server.datanode.DataNode
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  • org.apache.hadoop.hdfs.server.datanode.OfferService
  • org.apache.hadoop.hdfs.server.datanode.TestBlockReport
  • org.apache.hadoop.hdfs.server.namenode.AvatarNode
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