APAR status
Closed as program error.
Error description
This apar belongs to runtime component:
"CompoundClassLoader is using a Hashset which is specifically
unsynchronized (and uses a Hashmap internally which again is
unsynchronized). I simply put a synchronized block around the
uses of
variable badResources which is a Hashset."
Local fix Problem summary
****************************************************************
* USERS AFFECTED: All WebSphere users *
****************************************************************
* PROBLEM DESCRIPTION: Excessive CPU usage on multi-CPU *
* system. *
****************************************************************
* RECOMMENDATION: *
****************************************************************
CompoundClassLoader is using a Hashset for caching bad
resources lookup (a negative cache) which is unsynchronized
and this may lead to excessive CPU usage on multi-CPU systems.
Problem conclusion
Appropriate change has been made to make sure any update on
the badResources cache is now synchronized.
Temporary fix Comments
APAR information |
APAR number |
PQ83952 |
Reported component name |
WAS NETWRK DEPL |
Reported component ID |
5630A3601 |
Reported release |
00W |
Status |
CLOSED PER |
PE |
NoPE |
HIPER |
NoHIPER |
Special Attention |
NoSpecatt |
Submitted date |
2004-01-29 |
Closed date |
2004-02-04 |
Last modified date |
2006-02-19 |
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
PK20085
Modules/Macros
Publications Referenced
Applicable component levels |
R003 PSY |
UP |
R00A PSY |
UP |
R00H PSY |
UP |
R00I PSY |
UP |
R00P PSY |
UP |
R00S PSY |
UP |
R00W PSY |
UP |
R103 PSY |
UP |
R10A PSY |
UP |
R10H PSY |
UP |
R10I PSY |
UP |
R10P PSY |
UP |
R10S PSY |
UP |
R10W PSY |
UP |
|