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  1. Core Server
  2. SERVER-56661

Evaluate increasing default close_handle_minimum in WiredTiger

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 5.2.0
    • Component/s: None
    • Labels:
      None
    • Backwards Compatibility:
      Fully Compatible
    • Sprint:
      Execution Team 2021-10-04, Execution Team 2021-10-18, Execution Team 2021-11-01

      Description

      In SERVER-24949 we lowered the WiredTiger "close_idle_time" from 27 hours to 10 minutes. As a result, idle file handles may be closed more aggressively. This may have a performance impact for workloads that have long periods of idle activity, since closing idle handles also clears content from the cache.

      Consider raising the "close_handle_minimum" threshold, which configures the number of file handles to keep open after a successful sweep, up from 250. This would prevent too many file handles from being closed during a sweep, and would be useful for workloads with a large number of collections and indexes. This may also raise the threshold for how long to keep around handles for dropped collections.

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              Assignee:
              josef.ahmad Josef Ahmad
              Reporter:
              louis.williams Louis Williams
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                Updated:
                Resolved: