Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-7821

MongoS blocks all requests to sharded collection

    XMLWordPrintableJSON

Details

    • Bug
    • Status: Closed
    • Blocker - P1
    • Resolution: Incomplete
    • 2.2.1
    • None
    • None
    • Linux Centos5/6
    • Linux

    Description

      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.

      Attachments

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

        Issue Links

          Activity

            People

              david.hows David Hows
              kamaradclimber Grégoire Seux
              Votes:
              0 Vote for this issue
              Watchers:
              4 Start watching this issue

              Dates

                Created:
                Updated:
                Resolved: