Details

    • Type: Bug
    • Status: Closed
    • Priority: Blocker
    • Resolution: Duplicate
    • Affects Version/s: 2.0
    • Fix Version/s: None
    • Component/s: couchbase-bucket
    • Security Level: Public
    • Labels:
      None

      Description

      Under key-value tests, when compaction kicks in, it clobbers I/O resources; leading to slower drain-rates, which lead to longer queues and more memory consumption; then, there's evictions, and then more bg-fetches (which compete more for I/O). So, there's a corresponding hit to ops/sec.

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        Activity

        Hide
        peter peter added a comment -

        Chiyoung and Damien are working on a prototype to move the compactor into ep_engine and sequentialize it with the flusher to avoid the performance hits in this report. The plan is to make a toy build available and re-test. Only side-effect should be that the peak disk size may be slightly higher.

        Show
        peter peter added a comment - Chiyoung and Damien are working on a prototype to move the compactor into ep_engine and sequentialize it with the flusher to avoid the performance hits in this report. The plan is to make a toy build available and re-test. Only side-effect should be that the peak disk size may be slightly higher.
        Hide
        peter peter added a comment -

        Chiyoung, since you are prototyping this change, I'll assign this one to you. Thank you.

        Show
        peter peter added a comment - Chiyoung, since you are prototyping this change, I'll assign this one to you. Thank you.
        Hide
        chiyoung Chiyoung Seo added a comment -

        We decided to move the ep-engine side compaction to post 2.0

        Show
        chiyoung Chiyoung Seo added a comment - We decided to move the ep-engine side compaction to post 2.0
        Hide
        mikew Mike Wiederhold added a comment -

        Duplicate of CBD-485.

        Show
        mikew Mike Wiederhold added a comment - Duplicate of CBD-485.
        Hide
        maria Maria McDuff (Inactive) added a comment -

        closing as dupes.

        Show
        maria Maria McDuff (Inactive) added a comment - closing as dupes.

          People

          • Assignee:
            chiyoung Chiyoung Seo
            Reporter:
            steve Steve Yen
          • Votes:
            0 Vote for this issue
            Watchers:
            4 Start watching this issue

            Dates

            • Created:
              Updated:
              Resolved:

              Gerrit Reviews

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