PM83523: A JAVACORE CAN OCCUR INDICATING THAT THE LOAD BALANCER MANAGER THREAD HAS TERMINATED

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

• Manager is terminated by invoking "rule status @@" and
  "manager report" multiple times using 5 second intervals.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM WebSphere Application Server Edge Load  *
  *                  Balancer for ipv4 and ipv6 users            *
  ****************************************************************
  * PROBLEM DESCRIPTION: A javacore can occur indicating that    *
  *                      the manager thread has terminated.      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The get status method was not called synchronously. Causing
  data
  structure corruption and hence the manager thread crash.
  

Problem conclusion

• Synchronization was added to prevent data corruption.
  
  Fix levels:
  7.0.0.40
  8.0.0.6
  8.5.5.6
  

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

  WS EDGE LB IPV4

• Fixed component ID

  5724H8812

Applicable component levels

• R800 PSY

     UP

• R850 PSY

     UP