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  1. Couchbase Server
  2. MB-39163

Avoid possible deadlock in removeListener in gometa leader

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Details

    • Bug
    • Resolution: Fixed
    • Major
    • 7.0.0
    • 6.0.0, 6.0.1, 6.0.2, 6.0.3, 6.0.4, 6.5.1, 6.5.0
    • secondary-index
    • None
    • Untriaged
    • 1
    • Unknown

    Description

      Whenever a listener is being removed from the leader, a notification is sent to leader's change channel. This is done while holding a lock. If the channel is full, the function will block here.

      On the other side, if leaderServer is processing a notification on leader's change channel, It will call GetActiveEnsembleSize which also attempts to take same lock (which is held by removeListener), and hence leading to a deadlock.

      Attachments

        Issue Links

          backports to

          Bug - A problem which impairs or prevents the functions of the product. MB-39477 [Backport MB-39163 to 6.6.0] Avoid possible deadlock in removeListener in gometa leader

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MB-40407 [Backport MB-39163 to 6.0.5] Avoid possible deadlock in removeListener in gometa leader

          • Major - Major loss of function.
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. MB-43047 [Backport MB-39163 to 6.5.2] Avoid possible deadlock in removeListener in gometa leader

          • Major - Major loss of function.
          • Closed
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              amit.kulkarni Amit Kulkarni
              amit.kulkarni Amit Kulkarni
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              Dates

                Created:
                Updated:
                Resolved:

                PagerDuty