Uploaded image for project: 'OpenJPA'
  1. OpenJPA
  2. OPENJPA-1379

Locking problem when using timestamp QueryCache eviction policy.

    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 2.0.0-M3
    • Fix Version/s: 2.0.0-beta
    • Component/s: datacache
    • Labels:
      None

      Description

      I ran into a bug in AbstractQueryCache when using the timestamp QueryCache eviction policy. This is only a problem when running in a multithreaded environment.

      The net of the problem is that in AbstractQueryCache.onTypesChanged(TypesChangedEvent ev) we call writeLock(), but when using the non-default eviction policy we never call writeUnlock(). As a result, any other threads requesting a writeLock on the cache will block indefinitely.

        Attachments

          Issue Links

            Activity

              People

              • Assignee:
                curtisr7 Rick Curtis
                Reporter:
                curtisr7 Rick Curtis
              • Votes:
                0 Vote for this issue
                Watchers:
                0 Start watching this issue

                Dates

                • Created:
                  Updated:
                  Resolved: