PI13834: SIPTIMERS ARE NOT GETTING REMOVED FROM THE SESSIOIN UNTIL EXPIRED.

8.5.5.3: WebSphere Application Server V8.5.5 Fix Pack 3
8.5.5.4: WebSphere Application Server V8.5.5 Fix Pack 4
8.5.5.5: WebSphere Application Server V8.5.5 Fix Pack 5
8.5.5.6: WebSphere Application Server V8.5.5 Fix Pack 6
8.5.5.7: WebSphere Application Server V8.5.5 Fix Pack 7
8.5.5.8: WebSphere Application Server V8.5.5 Fix Pack 8
8.5.5.9: WebSphere Application Server V8.5.5 Fix Pack 9
8.5.5.10: WebSphere Application Server V8.5.5 Fix Pack 10
8.5.5.11: WebSphere Application Server V8.5.5 Fix Pack 11
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• SipTimers are not getting removed from the sessioin until
  expired.
  WebSphere Applicationi Server V8.5.5.
  Distributed Operating Systems.
  

Local fix

• NA
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server V8.5 Session Initiation Protocol     *
  *                  (SIP)                                       *
  ****************************************************************
  * PROBLEM DESCRIPTION: SipTimers are not being removed until   *
  *                      they are expired                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Because SipTimers use a Java Timer mechanism, a cancelled
  TimerTask isn't being removed from memory until it's expired.
  

Problem conclusion

• The solution is to call the Java Timer "purge" method which
  removes all cancelled TimerTasks from the queue and lets the
  garbage collector clean them from memory.
  The fix lets a customer define after how many cancelled tasks
  the "purge" method will be called. That's by defining the
  follwing custom property:
  "canceled.tasks.before.timer.purge = NUM",
  where NUM is the desired number of cancelled tasks that will
  lead to the "purge".
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.5.5.3.  Please refer to the Recommended Updates
  page for delivery information:
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

Temporary fix

Comments

APAR Information

• APAR is sysrouted FROM one or more of the following:

• APAR is sysrouted TO one or more of the following:

Fix information

• Fixed component name

  WEBSPHERE APP S

• Fixed component ID

  5724J0800

Applicable component levels

• R850 PSY

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