IBM Support

PK64009; 6.1.0.17: Change the default AuthCacheMaxSize to 25000

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Abstract

AuthCacheMaxSize default size needs to be

Download Description

PK64009 resolves the following problem:

ERROR DESCRIPTION:
As the default MaxAuthCacheSize is set to 500 currently, this will affect the performance drastically as anytime a customer has more than 200 concurrent users (for a typical bank, thousands may be common), we will start flushing our caches.

We need to increase this default value to 25000 (which is the case for Pyxis) to avoid customer PMRs again now on poor performance instead of OOMs.

LOCAL FIX:

PROBLEM SUMMARY

USERS AFFECTED:
All users of IBM® WebSphere® Application Server

* PROBLEM DESCRIPTION: AuthCacheMaxSize default size needs to be

RECOMMENDATION:
None

Increase the defaultCacheMaxSize to improve performance

PROBLEM CONCLUSION:
We need to change the default max AuthCache size from the current size of 500 to 25000.
The system property com.ibm.websphere.security.util.authCacheMaxSize now has a default value of 25000 (integer).

The fix for this APAR is currently targeted for inclusion in fixpack 6.1.0.19 and 6.0.2.29.

Please refer to the Recommended Updates page for delivery information:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980

Prerequisites

Please download the UpdateInstaller below to install this fix.

[{"PRLabel":"UpdateInstaller","PRLang":"US English","PRSize":"7250000","PRPlat":{"label":"AIX","code":"PF002"},"PRURL":"http://www.ibm.com/support/docview.wss?rs=180&uid=swg21205991"}]

Installation Instructions

Please review the readme.txt for detailed installation instructions.

[{"INLabel":"Readme","INLang":"US English","INSize":"4981","INURL":"ftp://public.dhe.ibm.com/software/websphere/appserv/support/fixes/PK64009/readme.txt"}]

Download Package

Download package
What is Fix Central (FC)?
What is DD?

Download RELEASE DATE LANGUAGE SIZE(Bytes) Download Options
6.1.0.15-WS-WAS-IFPK640096/19/2008US English13492FCFTPDD
6.1.0.17-WS-WAS-IFPK640096/19/2008US English13503FCFTPDD
6.0.2.21-WS-WAS-IFPK6400912/10/2008US English17878FCFTPDD

On
[{"DNLabel":"6.1.0.15-WS-WAS-IFPK64009","DNDate":"6/19/2008","DNLang":"US English","DNSize":"13492","DNPlat":{"label":"AIX","code":"PF002"},"DNURL":null,"DNURL_FTP":"","DDURL":null},{"DNLabel":"6.1.0.17-WS-WAS-IFPK64009","DNDate":"6/19/2008","DNLang":"US English","DNSize":"13503","DNPlat":{"label":"AIX","code":"PF002"},"DNURL":null,"DNURL_FTP":"","DDURL":null},{"DNLabel":"6.0.2.21-WS-WAS-IFPK64009","DNDate":"12/10/2008","DNLang":"US English","DNSize":"17878","DNPlat":{"label":"AIX","code":"PF002"},"DNURL":null,"DNURL_FTP":" ","DDURL":null}]

Technical Support

Contact IBM Support using SR (http://www-306.ibm.com/software/support/probsub.html), visit the WebSphere Application Server Support Web site (http://www.ibm.com/software/webservers/appserv/was/support/), or contact 1-800-IBM-SERV(U.S. only).

[{"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":"Security","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"6.1.0.17;6.1.0.15;6.0.2.27;6.0.2.25;6.0.2.23;6.0.2.21","Edition":"Base;Express;Network Deployment","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
15 June 2018

UID

swg24019623

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