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  1. Core Server
  2. SERVER-71029

Update slow SessionWorkflow log criteria

    • Type: Icon: Bug Bug
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 6.3.0-rc0
    • Affects Version/s: None
    • Component/s: None
    • None
    • Fully Compatible
    • ALL
    • v6.2
    • Service Arch 2022-11-14, Service Arch 2022-11-28, Service Arch 2022-12-12
    • 105

      The Slow SessionWorkflow log in session_workflow.cpp currently logs based on what it deems "active time". This is effectively all time that is not waiting for a message to be received.

      It turns out that a lot of this active time can be time that the Slow Query log does not count, causing the SessionWorkflow log to happen way too often, introducing a performance regression (BF-26754).

      Given that our criteria isn't as nuanced as it should be, and this layer of the system does not have access to the data required to make such a nuanced decision, we should revert back to the intention of this bug and simply log when `sendResponseMillis > slowMS`.

      The log message itself should change and the test for the Slow SessionWorkflow log should be updated (slow_session_workflow_log.js).

            Assignee:
            blake.oler@mongodb.com Blake Oler
            Reporter:
            matt.diener@mongodb.com Matt Diener (Inactive)
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              Created:
              Updated:
              Resolved: