ICEfaces
  1. ICEfaces
  2. ICE-9627

Deadlock during session invalidation

          Details

          • Type: Bug Bug
          • Status: Closed
          • Priority: Major Major
          • Resolution: Fixed
          • Affects Version/s: EE-1.8.2.GA_P07
          • Fix Version/s: EE-1.8.2.GA_P08
          • Component/s: Framework
          • Labels:
            None
          • Environment:
            WebLogic Seam
          • Salesforce Case Reference:

            Description

            It appears we have interleaved synchronization that is causing a deadlock. It is triggered during session invalidation. In this case, something in Seam is invalidating the session and that invalidate call makes it's way down until we try to shutdown our SessionDispatcher.Monitor. At that point it grabs a lock on the collection of "contexts" in order to iterate through and clean up stuff. During this process, though, it needs to grap a lock on the SessionMonitors collection. Unfortunately, a thread already has the lock but then needs the lock on the "contexts" collection as well.
            1. Text File
              ICE-9627.patch
              2 kB
              Deryk Sinotte
            2. File
              icefaces.death.threadDump
              139 kB
              Arran Mccullough
            3. Text File
              synchronizeInShutdown.patch
              2 kB
              Arran Mccullough

              Activity

              Repository Revision Date User Message
              ICEsoft Public SVN Repository #38803 Fri Nov 15 15:58:28 MST 2013 deryk.sinotte ICE-9627: add lock ordering to prevent deadlock during session invalidating for multiple sessions
              Files Changed
              Commit graph MODIFY /icefaces/trunk/icefaces/core/src/com/icesoft/faces/webapp/http/servlet/SessionDispatcher.java
              Repository Revision Date User Message
              ICEsoft Public SVN Repository #38516 Fri Oct 04 15:46:17 MDT 2013 deryk.sinotte ICE-9627: move processing of contexts out of synchronized block to avoid deadlocks
              Files Changed
              Commit graph MODIFY /icefaces/trunk/icefaces/core/src/com/icesoft/faces/webapp/http/servlet/SessionDispatcher.java

                People

                • Assignee:
                  Deryk Sinotte
                  Reporter:
                  Deryk Sinotte
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                  Dates

                  • Created:
                    Updated:
                    Resolved: