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  1. Core Server
  2. SERVER-16737

support eviction_dirty_trigger for WiredTiger

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    Details

    • Type: New Feature
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.1.5
    • Component/s: Storage, WiredTiger
    • Labels:
    • Backwards Compatibility:
      Fully Compatible

      Description

      Discussion started in SERVER-16665. WT supports eviction_dirty_target, eviction_target and eviction_trigger. I also want a setting for eviction_dirty_trigger. With a 144G RAM server I don't want 140G of dirty pages in the WT cache but I need eviction_dirty_trigger and eviction_dirty_target to enforce that. Otherwise, the percentage of dirty data in the cache will approach 100% and if eviction_dirty_trigger is small then eviction might run for a very long time.

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                • Created:
                  Updated:
                  Resolved: