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  1. Core Server
  2. SERVER-57482

Adaptively call wiredtiger_calc_modify

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Details

    • Improvement
    • Status: Backlog
    • Major - P3
    • Resolution: Unresolved
    • None
    • None
    • None
    • v5.0

    Description

      When updating in wiredtiger record store, wiredtiger_calc_modify is called to attempt to get a diff for faster update. However, when it fails to calculate such a diff, the time goes wasted. For certain workload (e.g. time series), we found that the calculation rarely succeeds and slows down the updates. We would like to implement a general heuristic (not just for time series) to adaptively increase or decrease the frequency on attempting to do the calculation.

      After implementing the heuristic, the "engineering solution" for time-series in the linked ticket should be removed.

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              backlog-server-execution Backlog - Storage Execution Team
              yuhong.zhang@mongodb.com Yuhong Zhang
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                Created:
                Updated: