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  1. Core Server
  2. SERVER-56598

Sharding DDL coordinators block running thread during construction phase

    • Type: Icon: Bug Bug
    • Resolution: Duplicate
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: Backlog
    • Component/s: Sharding
    • Sharding EMEA

      Currently sharding DDL coordinators attempt to acquire dist-locks in their construction phase. This is blocking work that depends on other coordinators to complete. Since all the coordinators use the same shared threadpool we can end-up with the following deadlock on thread acquisition:

      • coordinator 1 waits on the dist-locks acquisition without yelding his threads (T1)
      • coordinator 2 waits on (T1) to be available in other to release the distlock.

            Assignee:
            backlog-server-sharding-emea [DO NOT USE] Backlog - Sharding EMEA
            Reporter:
            tommaso.tocci@mongodb.com Tommaso Tocci
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              Created:
              Updated:
              Resolved: