PI40225: INTELLIGENT MANAGEMENT ENABLED PLUG-IN SEGFAULTS DUE TO OUT OF ORDER DELETE OF SERVER AND SERVERAPPLICATION OBJECTS

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
8.5.5.17: 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

• Segmentation faults may occur occasionally with Intelligent
  Management (IM) enabled plug-in when dynamic routing to auto
  scaling Liberty profile server clusters.
  

Local fix

• Not available.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM WebSphere Application Server V8.5       *
  *                  Liberty profile users of Intelligent        *
  *                  Management for web servers and auto         *
  *                  scaling.                                    *
  ****************************************************************
  * PROBLEM DESCRIPTION: Rapid addition and deletion of          *
  *                      servers by auto scaling                 *
  *                      intermittently issues out of order      *
  *                      messages to the IM enabled plugin       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Segmentation fault messages may be seen in the apache http
  server error log.
  

Problem conclusion

• The program was modified to tolerate this scenario.
  
  The fix for this APAR is currently targeted for inclusion in
  fix pack 8.5.5.6.  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

  WEBS APP SERV N

• Fixed component ID

  5724H8800

Applicable component levels

• R850 PSY

     UP