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  1. WiredTiger
  2. WT-4927

Allow updates with timestamps to be evicted to lookaside

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: WT3.2.1, 4.3.1, 4.2.0-rc3
    • Component/s: None
    • Labels:
      None
    • Sprint:
      Storage Engines 2019-07-19

      Description

      Testing of internal MongoDB applications has detected situations where MongoDB 4.2.0-rc2 behaves worse than 4.0.x under cache pressure situations.

      In particular, in situations where 4.0.x would use the cache overflow mechanism to make progress during slow checkpoints, 4.2.0-rc2 instead appears to waste time doing update/restore eviction even when it does not contribute to reducing the volume of dirty data in cache.

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            Assignee:
            michael.cahill Michael Cahill
            Reporter:
            michael.cahill Michael Cahill
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              Dates

              Created:
              Updated:
              Resolved: