Fixes are available
6.1.0.1: WebSphere Application Server V6.1.0 Fix Pack 1 for HP-UX
6.1.0.1: WebSphere Application Server V6.1.0 Fix Pack 1 for AIX
6.1.0.1: WebSphere Application Server V6.1.0 Fix Pack 1 for Windows
6.1.0.1: WebSphere Application Server V6.1.0 Fix Pack 1 for Linux
6.1.0.1: WebSphere Application Server V6.1.0 Fix Pack 1 for i5/OS
6.1.0.1: WebSphere Application Server V6.1.0 Fix Pack 1 for Solaris
APAR status
Closed as program error.
Error description
The bug is that the cache's pushPullTable in which the location of remote cache entries are stored contains stale data. The data becomes stale because the server containing the cache content has been stopped. The replication service does not notify the cache instance that the server has left. Therefore those entries for the server that left are not removed unless a failed request for that cacheID is experienced.
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of WebSphere Application Server * * version 6 using Dynamic Cache replication * * with the push-pull sharing policy. * **************************************************************** * PROBLEM DESCRIPTION: Slow memory leak in Dynamic cache * * push-pull table when server(s) are * * stopped and restarted during cache * * load scenarios. * **************************************************************** * RECOMMENDATION: * **************************************************************** The bug is that the cache's pushPullTable in which the location of remote cache entries are stored contains stale data. The data becomes stale because the server containing the cache content has been stopped. The replication service does not notify the cache instance that the server has left. Therefore those entries for the server that left are not removed unless a failed request for that cacheID is experienced.
Problem conclusion
Replication service propogates the notification of server stop to the dynamic cache which in turn cleans up the table. This fix for this APAR is targeted for inclusion in fixpack 6.0.2.13 and 6.1.0.1. Please refer to the Recommended Updates page to confirm delivery information: http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
Temporary fix
Comments
APAR Information
APAR number
PK25682
Reported component name
WEBSPH APP SERV
Reported component ID
5724J0800
Reported release
60A
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2006-05-26
Closed date
2006-07-14
Last modified date
2006-07-14
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Modules/Macros
DRS
Fix information
Fixed component name
WEBSPH APP SERV
Fixed component ID
5724J0800
Applicable component levels
R60A PSY
UP
R60H PSY
UP
R60I PSY
UP
R60P PSY
UP
R60S PSY
UP
R60W PSY
UP
R60Z PSY
UP
R61A PSY
UP
R61H PSY
UP
R61I PSY
UP
R61P PSY
UP
R61S PSY
UP
R61W PSY
UP
R61Z PSY
UP
[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"6.0","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
19 October 2021