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  1. Accumulo
  2. ACCUMULO-4114

examine performance decrease with many tablets

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    • Task
    • Status: Resolved
    • Major
    • Resolution: Not A Problem
    • None
    • None
    • client, tserver
    • None

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

        Activity

          People

            ecn Eric C. Newton
            ecn Eric C. Newton
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            Dates

              Created:
              Updated:
              Resolved: