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  1. WiredTiger
  2. WT-653

Hot backup of files that are being bulk loaded

    • Type: Icon: Task Task
    • Resolution: Done
    • WT1.6.5
    • Affects Version/s: None
    • Component/s: None

      Currently, if there is a file that is being bulk loaded while a backup occurs. Backup will receive a EBUSY return when it attempts to open a cursor on the bulk file and the backup will fail.

      This is an issue that replaces pull request WT-570.

      It's not clear what the correct solution is. Checkpoint creates a special empty file in this situation. The options I see:

      • Have backup skip any files being bulk loaded (not sure if this has metadata consequences?)
      • Continue to have backup cursor_open return EBUSY when a table is being bulk loaded.
      • Your good idea goes here.

      It's also worth noting that this issue isn't specific to bulk loaded files. It will happen any time a handle is open with the WT_DHANDLE_EXCLUSIVE flag. Other cases where we do that are with rename, compact, etc

      Once this is resolved I suspect we'll want to remove the change to test/format that retries backup on EBUSY.

            Assignee:
            keith.bostic@mongodb.com Keith Bostic (Inactive)
            Reporter:
            alexander.gorrod@mongodb.com Alexander Gorrod
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              Created:
              Updated:
              Resolved: