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  1. WiredTiger
  2. WT-3169

Add ability to log a message when the lookaside file is used

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: WT2.9.3, 3.5.9
    • Component/s: None
    • Labels:
      None
    • Sprint:
      Storage 2017-03-27, Storage 2017-05-29, Storage 2017-06-19

      Description

      Applications are likely to notice a performance degradation when WiredTiger starts spilling content from cache to disk to satisfy transaction visibility requirements.

      It would be worthwhile to add a verbose mode that enables logging messages when the lookaside file is used. Where possible the messages should be able to be tied to the operation that triggered the LAS usage.

      A possible implementation would add a new verbose=[lookaside] option to wiredtiger_open.

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            Assignee:
            david.hows David Hows
            Reporter:
            alexander.gorrod Alexander Gorrod
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              Created:
              Updated:
              Resolved: