Package org.apache.hadoop.hdfs.protocol.DataTransferProtocol

Examples of org.apache.hadoop.hdfs.protocol.DataTransferProtocol.PipelineAck.readFields()

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        while (!responderClosed && dfsClient.clientRunning && !isLastPacketInBlock) {
          // process responses from datanodes.
          try {
            // read an ack from the pipeline
            ack.readFields(blockReplyStream);
            if (DFSClient.LOG.isDebugEnabled()) {
              DFSClient.LOG.debug("DFSClient " + ack);
            }
           
            long seqno = ack.getSeqno();
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            PipelineAck ack = new PipelineAck();
            long seqno = PipelineAck.UNKOWN_SEQNO;
            try {
              if (numTargets != 0 && !mirrorError) {// not the last DN & no mirror error
                // read an ack from downstream datanode
                ack.readFields(mirrorIn);
                if (LOG.isDebugEnabled()) {
                  LOG.debug("PacketResponder " + numTargets + " got " + ack);
                }
                seqno = ack.getSeqno();
              }
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                notifyAll();
              }
              // receive an ack if DN is not the last one in the pipeline
              if (numTargets > 0 && !localMirrorError) {
                // read an ack from downstream datanode
                ack.readFields(mirrorIn, numTargets);
                if (LOG.isDebugEnabled()) {
                  LOG.debug("PacketResponder " + numTargets +
                      " for block " + block + " got " + ack);
                }
                seqno = ack.getSeqno();
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              }

              // receive an ack if DN is not the last one in the pipeline
              if (numTargets > 0 && !localMirrorError) {
                // read an ack from downstream datanode
                ack.readFields(mirrorIn, numTargets, pktProfile != null);
                if (LOG.isDebugEnabled()) {
                  LOG.debug("PacketResponder " + numTargets +
                      " for block " + block + " got " + ack);
                }
                seqno = ack.getSeqno();
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          PipelineAck pipelineAck = null;
          if (!doParallelWrites) {
            // verify seqno from datanode
            if (supportClientHeartbeat()) {
              pipelineAck = new PipelineAck();
              pipelineAck.readFields(blockReplyStream.get(0), targets.length,
                  profileData != null);
             
              seqno = pipelineAck.getSeqno();
             
              if (!pipelineAck.isSuccess()) {
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