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  1. Cassandra
  2. CASSANDRA-12489

consecutive repairs of same range always finds 'out of sync' in sane cluster

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    Details

    • Severity:
      Normal
    • Complexity:
      Low Hanging Fruit

      Description

      No matter how often or when I run the same subrange repair, it ALWAYS tells me that some ranges are our of sync. Tested in 3.9 + 3.10 (git trunk of 2016-08-17). The cluster is sane. All nodes are up, cluster is not overloaded.
      I guess this is not a desired behaviour. I'd expect that a repair does what it says and a consecutive repair shouldn't report "out of syncs" any more if the cluster is sane.
      Especially for tables with MVs that puts a lot of pressure during repair as ranges are repaired over and over again.

      See traces of different runs attached.

        Attachments

        1. trace_3_10.1.log.gz
          23 kB
          Benjamin Roth
        2. trace_3_10.2.log.gz
          9 kB
          Benjamin Roth
        3. trace_3_10.3.log.gz
          22 kB
          Benjamin Roth
        4. trace_3_10.4.log.gz
          9 kB
          Benjamin Roth
        5. trace_3_9.1.log.gz
          20 kB
          Benjamin Roth
        6. trace_3_9.2.log.gz
          21 kB
          Benjamin Roth

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              • Assignee:
                brstgt Benjamin Roth
                Reporter:
                brstgt Benjamin Roth
                Authors:
                Benjamin Roth
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                Dates

                • Created:
                  Updated: