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  1. Core Server
  2. SERVER-14746

IndexRebuilder should only restart index builds initiated internally

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Details

    • Bug
    • Status: Closed
    • Major - P3
    • Resolution: Duplicate
    • 2.5.0
    • None
    • None
    • ALL

    Description

      It should not restart user-initiated index builds.

      Scenario:
      1) User starts building a unique index on {a:1} on the current primary, node A.
      2) Node A dies suddenly (kill -9 or power failure, etc) and node B becomes the new primary.
      3) Node A restarts and the IndexRebuilder restarts building of the index.

      At this point, node A now has an index that does not exist on the primary and never will. This would be less of a problem for a non-unique index, but because this is unique, an insert can now succeed on the primary but fail on node A, breaking replication.

      I think the right solution is to only rebuild indexes where we would not call logOp on completion.

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              backlog-server-execution Backlog - Storage Execution Team
              mathias@mongodb.com Mathias Stearn
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                Updated:
                Resolved: