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  1. Jackrabbit Oak
  2. OAK-3070

Use a lower bound in VersionGC query to avoid checking unmodified once deleted docs

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Details

    • Improvement
    • Status: Closed
    • Major
    • Resolution: Fixed
    • None
    • 1.7.0, 1.8.0
    • mongomk, rdbmk

    Description

      As part of OAK-3062 mreutegg suggested

      As a further optimization we could also limit the lower bound of the _modified
      range. The revision GC does not need to check documents with a _deletedOnce
      again if they were not modified after the last successful GC run. If they
      didn't change and were considered existing during the last run, then they
      must still exist in the current GC run. To make this work, we'd need to
      track the last successful revision GC run.

      Lowest last validated _modified can be possibly saved in settings collection and reused for next run

      Attachments

        1. OAK-3070.patch
          12 kB
          Vikas Saurabh
        2. OAK-3070-updated.patch
          15 kB
          Julian Reschke
        3. OAK-3070-updated.patch
          16 kB
          Julian Reschke
        4. OAK-3070-2.patch
          25 kB
          Marcel Reutegger
        5. OAK-3070-3.patch
          26 kB
          Marcel Reutegger

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. OAK-5966 Not able to connect in read only mode with old DocumentNodeStore repo

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          New Feature - A new feature of the product, which has yet to be developed. OAK-3710 Continuous revision GC

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. OAK-5704 VersionGC: reset _deletedOnce for documents that have been resurrected

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. OAK-3062 VersionGC failing on Mongo with CursorNotFoundException

          • Major - Major loss of function.
          • Closed

          Task - A task that needs to be done. OAK-4780 VersionGarbageCollector should be able to run incrementally

          • Major - Major loss of function.
          • Closed

          Activity

            People

              mreutegg Marcel Reutegger
              chetanm Chetan Mehrotra
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              Dates

                Created:
                Updated:
                Resolved: