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  1. Accumulo
  2. ACCUMULO-4114

examine performance decrease with many tablets

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    Details

    • Type: Task
    • Status: Resolved
    • Priority: Major
    • Resolution: Not A Problem
    • Affects Version/s: None
    • Fix Version/s: None
    • Component/s: client, tserver
    • Labels:
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      Description

      While writing a performance test for ACCUMULO-4112, I noticed the performance drop for large numbers of tablets hosted on a single server.
      Some decrease in performance is expected since the various queues and buffers are being divided among a greater number of tablets, but a 5x decrease is unexpected. Given other fixes (ACCUMULO-3423, for example) I would not expect performance to drop off so dramatically.

      Investigate the performance of conditional updates going to many tablets, vs one tablet.

        Attachments

        1. MetadataCompactionsPerTest.png
          14 kB
          Eric C. Newton
        2. MinCFlushPerfTest.java
          5 kB
          Eric C. Newton
        3. PerfSmallIMM.png
          100 kB
          Eric C. Newton
        4. PerfWithMoreTablets.png
          28 kB
          Eric C. Newton

          Activity

            People

            • Assignee:
              ecn Eric C. Newton
              Reporter:
              ecn Eric C. Newton
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              Dates

              • Created:
                Updated:
                Resolved: