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  1. Core Server
  2. SERVER-84449

High WiredTiger session concurrency can increase replication write latency

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    • Type: Icon: Task Task
    • Resolution: Unresolved
    • Priority: Icon: Major - P3 Major - P3
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    • Affects Version/s: None
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    • Replication

      For WT to calculate all_durable and advance the stable_timestamp, it has to walk all opened sessions. In high load scenarios and connection storms this can lead to contention on the ReplicationCoordinator mutex, slowing replication and inducing read/write concern majority lag.

            Assignee:
            backlog-server-repl [DO NOT USE] Backlog - Replication Team
            Reporter:
            m.maher@mongodb.com Moustafa Maher
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              Created:
              Updated: