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  1. Jackrabbit Oak
  2. OAK-2849

Improve revision gc on SegmentMK

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    • SegmentMK revision GC

    Description

      This is a container issue for the ongoing effort to improve revision gc of the SegmentMK.

      I'm exploring

      • ways to make the reference graph as exact as possible and necessary: it should not contain segments that are not referenceable any more and but must contain all segments that are referenceable.
      • ways to segregate the reference graph reducing dependencies between certain set of segments as much as possible.
      • Reducing the number of in memory references and their impact on gc as much as possible.

      Attachments

        1. SegmentCompactionIT-conflicts.png
          668 kB
          Alex Deparvu

        Issue Links

          is related to

          Bug - A problem which impairs or prevents the functions of the product. OAK-4054 FileStore.containsSegment returns alway true (almost)

          • Critical - Crashes, loss of data, severe memory leak.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. OAK-2498 Root record references provide too little context for parsing a segment

          • Major - Major loss of function.
          • Resolved

          Bug - A problem which impairs or prevents the functions of the product. OAK-4011 Set online compaction default to paused

          • Blocker - Blocks development and/or testing work, production could not run
          • Closed

          Bug - A problem which impairs or prevents the functions of the product. OAK-4255 CLONE - FileStore.containsSegment returns alway true (almost)

          • Critical - Crashes, loss of data, severe memory leak.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. OAK-3485 FileStoreIT cleanup after tests

          • 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-3481 CompactionMapTest does not close file store

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

          Improvement - An improvement or enhancement to an existing feature or task. OAK-3315 SegmentMk shouldn't store binary segments in the cache

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

          Technical task - A technical task. OAK-3309 Segment Tar SegmentCache loader stats

          • Major - Major loss of function.
          • Closed

          Improvement - An improvement or enhancement to an existing feature or task. OAK-3797 SegmentTracker#collectBlobReferences should retain fewer SegmentId instances

          • Major - Major loss of function.
          • Closed

          Task - A task that needs to be done. OAK-2408 Investigate ways to make revision gc more precise

          • Major - Major loss of function.
          • Resolved

          Activity

            People

              mduerig Michael Dürig
              mduerig Michael Dürig
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              Dates

                Created:
                Updated:
                Resolved: