Uploaded image for project: 'Core Server'
  1. Core Server
  2. SERVER-7394

'movePrimary' should issue a warning if data exists in the database being moved

    • Type: Icon: Bug Bug
    • Resolution: Won't Fix
    • Priority: Icon: Major - P3 Major - P3
    • None
    • Affects Version/s: None
    • Component/s: None
    • None
    • ALL

      This is an extension to SERVER-3562. That fix caused the 'movePrimary' command to not move any collection data for sharded collections. Because 'movePrimary' (or 'clone') does not take out a write lock, it is possible for users to try to write to that collection while the clone is in-flight. If they do so before the metadata is updated, the writes can be lost.

      The long-term fix would be to lock all of the collections being moved by 'clone'. As a short-term fix, I'd suggest having 'movePrimary' return a warning if it detects any unsharded collections in the database being moved.

            Assignee:
            Unassigned Unassigned
            Reporter:
            william.zola@10gen.com William Zola
            Votes:
            1 Vote for this issue
            Watchers:
            4 Start watching this issue

              Created:
              Updated:
              Resolved: