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  1. Couchbase Server
  2. MB-40120

Incorrect PageBytes and ItemCnt after recovery

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    • Untriaged
    • 1
    • No

    Description

      Log replay will skip data blocks if a more recent header was already recovered by checkpoint recovery. But, during skipping of stale data block, we do not clear page op stats due to that stale data block. These stats get accumulated on the next UpdateMapping for the gCtx. This leads to larger values for stats like PageBytes and ItemCnt after recovery.

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          backports to

          Bug - A problem which impairs or prevents the functions of the product. MB-41646 BP 6.6.x MB-40120 Incorrect PageBytes and ItemCnt after recovery

          • Major - Major loss of function.
          • Closed
          For Gerrit Dashboard: MB-40120
          # Subject Branch Project Status CR V
          131272,6 MB-40120: Discard page ops during log replay unstable plasma Status: MERGED +2 +1

          Activity

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            build-team Couchbase Build Team added a comment -

            Build couchbase-server-7.0.0-2568 contains plasma commit d0b6706 with commit message:
            MB-40120: Discard page ops during log replay

            build-team Couchbase Build Team added a comment - Build couchbase-server-7.0.0-2568 contains plasma commit d0b6706 with commit message: MB-40120 : Discard page ops during log replay
            girish.benakappa Girish Benakappa added a comment -

            Akhil Mundroy Can this be verified by code instrumentation as you did in 6.6 ?

            girish.benakappa Girish Benakappa added a comment - Akhil Mundroy Can this be verified by code instrumentation as you did in 6.6 ?
            srinath.duvuru Srinath Duvuru added a comment -

            The back port was straight forward and the fix was verified in back port. We can close this.

            srinath.duvuru Srinath Duvuru added a comment - The back port was straight forward and the fix was verified in back port. We can close this.

            People

              akhil.mundroy Akhil Mundroy
              akhil.mundroy Akhil Mundroy
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              Dates

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                Updated:
                Resolved:

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