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  1. Core Server
  2. SERVER-56598

Sharding DDL coordinators block running thread during construction phase

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Duplicate
    • Backlog
    • None
    • Sharding

    Description

      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.

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              backlog-server-sharding-emea Backlog - Sharding EMEA
              tommaso.tocci@mongodb.com Tommaso Tocci
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                Updated:
                Resolved: