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  1. Couchbase Server
  2. MB-33321

Prevent map corruption due to num_replicas change after interrupted rebalance

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Details

    • Bug
    • Resolution: Fixed
    • Critical
    • 6.0.2
    • 5.5.3
    • ns_server
    • None
    • Untriaged
    • No

    Description

      Conditions under which the problem happens:
      1) Rebalance interrupted
      2) num_replicas decreased
      3) Some vbuckets are in a "dead" state on some nodes

      In this case ns_server:do_sanify_chain might pick FutureChain for vbucket which length is longer than the length of the original Chain which leads to vbucket map with variable chain lengths (corrupted)

      Attachments

        For Gerrit Dashboard: MB-33321
        # Subject Branch Project Status CR V
        106089,4 MB-33321 trim the resulting chain in ns_janitor:sanify_chain alice ns_server Status: MERGED +2 +1
        106308,2 Merge remote-tracking branch 'gerrit/alice' master ns_server Status: MERGED +2 +1

        Activity

          People

            Balakumaran.Gopal Balakumaran Gopal
            artem Artem Stemkovski
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            Dates

              Created:
              Updated:
              Resolved:

              Gerrit Reviews

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