PQ70936: WEBSPHERE DEADLOCKS WHEN USING BRBEANS WITH MULTIPLE CLIENTS

 A fix is available

5.0.1: WebSphere Application Server Enterprise Edition Version 5.0 Fix Pack 1



APAR status
Closed as program error.

Error description
When executing a single rule with multiple clients at the same
time, WebSphere will deadlock in less than a minute of
operating.
Local fix Problem summary
****************************************************************
* USERS AFFECTED: WebSphere Application Server Developers      *
*                 using Business Rule Beans (BRBeans).         *
****************************************************************
* PROBLEM DESCRIPTION: WebSphere deadlocks when triggering a   *
*                      rule from multiple clients              *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
Under some circumstances there is a deadlock condition that can
cause the application server running Business Rule Beans as
well as clients triggering Business Rule Beans rules to hang.
This deadlock can occur when multiple clients are triggering
rules at the same time and the rules being triggered are
configured for remote firing.
Problem conclusion
The BRBeans code was performing improper locking that could
result in deadlocks.  The code has been fixed in the next
WebSphere Enterprise fixpack and a temporary fix is also
available.
Temporary fix Comments
APAR information
APAR number PQ70936
Reported component name WAS ENTERPRISE
Reported component ID 5630A3700
Reported release 00W
Status CLOSED PER
PE NoPE
HIPER NoHIPER
Special Attention NoSpecatt
Submitted date 2003-02-12
Closed date 2003-07-01
Last modified date 2003-07-01

APAR is sysrouted FROM one or more of the following:

APAR is sysrouted TO one or more of the following:

Modules/Macros
BRBEANS          

Publications Referenced

Fix information

Applicable component levels
R00A PSN    UP
R00H PSN    UP
R00I PSN    UP
R00S PSN    UP
R00W PSY    UP


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > Enterprise Edition (EE)
Operating system(s):
Software version: 00W
Software edition:
Reference #: PQ70936
IBM Group: Software Group
Modified date: Jul 1, 2003