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  1. Core Server
  2. SERVER-44058

Spontaneous deadlock on mongos

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    • Icon: Bug Bug
    • Resolution: Incomplete
    • Icon: Major - P3 Major - P3
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    Description

      We've hit an issue with spontaneous mongos deadlocks. Unfortunately I can't provide any hints for reproducing it but I've managed to take a core dump from troubled mongos process. See attached file with stacktraces from the core dump.
      It looks like all threads are waiting for ThreadPoolTaskExecutor to release _mutex which is acquired by waitForEvent method waiting for some event.

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        1. bts.txt
          459 kB

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            dmitry.agranat@mongodb.com Dmitry Agranat
            sz Sergey Zagursky
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              Updated:
              Resolved: