Uploaded image for project: 'Jackrabbit Oak'
  1. Jackrabbit Oak
  2. OAK-3055

Improve segment cache in SegmentTracker

    XMLWordPrintableJSON

    Details

      Description

      The hand crafted segment cache in SegmentTracker is prone to lock contentions in concurrent access scenarios. As SegmentNodeStore#merge might also end up acquiring this lock while holding the commit semaphore the situation can easily lead to many threads being blocked on the commit semaphore. The SegmentTracker cache doesn't differentiate between read and write access, which means that reader threads can block writer threads.

        Attachments

        1. OAK-3055.patch
          4 kB
          Michael Dürig

          Issue Links

            Activity

              People

              • Assignee:
                mduerig Michael Dürig
                Reporter:
                mduerig Michael Dürig
              • Votes:
                0 Vote for this issue
                Watchers:
                3 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: