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  1. Core Server
  2. SERVER-40100

Mongos hangs without any log messages

    • Type: Icon: Bug Bug
    • Resolution: Duplicate
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: 4.0.4
    • Component/s: Internal Code
    • None
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      Symptoms: mongos listen port, but don't serve client requests for few hours (until restart). Nothing suspicious in the logs found.

      I was make core dump and backtrace for all threads (backtrace file is attached to this issue).

      How often: around twice a month per production environment.

      Version:

      mongos version v4.0.4
      {{ git version: f288a3bdf201007f3693c58e140056adf8b04839}}
      {{ OpenSSL version: OpenSSL 1.0.2g 1 Mar 2016}}
      {{ allocator: tcmalloc}}
      {{ modules: none}}
      {{ build environment:}}
      {{ distmod: ubuntu1604}}
      {{ distarch: x86_64}}
      {{ target_arch: x86_64}}

      Topology:

      • single shard cluster
      • 3-nodes configuration replicaset;
      • 4-nodes shard replicaset;
      • mongos instance on each client host.

        1. bt.txt
          3.23 MB
          Artem
        2. mongos.20190317.bt.txt
          178 kB
          Artem
        3. mongos.20190317.diagnostics.tgz
          2.12 MB
          Artem
        4. mongos.20190318.bt.txt
          3.09 MB
          Artem
        5. mongos.20190318.diagnostic.tgz
          9.15 MB
          Artem

            Assignee:
            eric.sedor@mongodb.com Eric Sedor
            Reporter:
            bozaro Artem
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              Created:
              Updated:
              Resolved: