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

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