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  1. Core Server
  2. SERVER-7821

MongoS blocks all requests to sharded collection

    • Type: Icon: Bug Bug
    • Resolution: Incomplete
    • Priority: Icon: Blocker - P1 Blocker - P1
    • None
    • Affects Version/s: 2.2.1
    • Component/s: None
    • Environment:
      Linux Centos5/6
    • Linux

      Three times on the last 48 hours, all our mongoS were deadlocked on serving requests to sharded collection.
      Using out-of-prod mongoS to a sharded collection was blocked to.

      During the lock, it was possible to : use db.currentOp() and show collection on the sharded database.

      Restarting all mongoS was the only way to get out of this.

      In attachment, a cleaned log of one mongoS during the last failure.

        1. deadlock.png
          deadlock.png
          64 kB
        2. lock.log
          5 kB
        3. mongoS.gz
          46.00 MB
        4. shard4_log_extract.zip
          455 kB
        5. changelog_us
          10.81 MB
        6. moveChunk_abort_ version_issue_20121211.txt
          63 kB
        7. mongod-shard4-shard6-logs.zip
          1.38 MB
        8. sh_status.out
          6 kB

            Assignee:
            david.hows David Hows
            Reporter:
            kamaradclimber Grégoire Seux
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              Created:
              Updated:
              Resolved: