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  1. HBase
  2. HBASE-4989

Metrics to measure sequential reads and random reads separately

    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Minor
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.94.0
    • Component/s: regionserver
    • Labels:
      None
    • Hadoop Flags:
      Incompatible change, Reviewed
    • Release Note:
      The metric fsReadLatency records the number of sequential reads. The metric fsPreadLatency records the number of random reads.

      Description

      HBase does sequential reads for compactions and positional random reads for satisfying user's queries. It would be nice if we can measure their latencies separately. It is mostly the random reads that dominate a transactional workload.

        Attachments

        1. metrics1.txt
          6 kB
          dhruba borthakur

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            People

            • Assignee:
              dhruba dhruba borthakur
              Reporter:
              dhruba dhruba borthakur
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              Dates

              • Created:
                Updated:
                Resolved: