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  1. Hadoop HDFS
  2. HDFS-11371

Document missing metrics of erasure coding

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      HDFS-8411, HDFS-11216 add some metrics of erasure coding, but it hasn't been documented. The following metrics in DataNodeMetrics is missing in documentation.

        @Metric("Count of erasure coding reconstruction tasks")
        MutableCounterLong ecReconstructionTasks;
        @Metric("Count of erasure coding failed reconstruction tasks")
        MutableCounterLong ecFailedReconstructionTasks;
        @Metric("Nanoseconds spent by decoding tasks")
        MutableCounterLong ecDecodingTimeNanos;
        @Metric("Bytes read by erasure coding worker")
        MutableCounterLong ecReconstructionBytesRead;
        @Metric("Bytes written by erasure coding worker")
        MutableCounterLong ecReconstructionBytesWritten;
        @Metric("Bytes remote read by erasure coding worker")
        MutableCounterLong ecReconstructionRemoteBytesRead;
      

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              • Assignee:
                linyiqun Yiqun Lin
                Reporter:
                linyiqun Yiqun Lin
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