PK17746: MULTIPLE DRSHTTSESSCACHE INSTANCES RESULTS IN JAVA.LANG.OUTOFMEMORY | |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description When session management is turned on at application level, by design multiple DRSHttSessCache instances are created, one for each application plus one always for the server. It has been discovered that a session created in one application is stored in each of the DRSHttpSessCache instances, as opposed to storing in its own single DRSHttpSessCache instance. This unnecessarily replicates the number of session obejcts living in memory and contributes high memory usage.Local fix Disable memory to memory replicatorProblem summary **************************************************************** * USERS AFFECTED: Users who define replication at the * * application level. * **************************************************************** * PROBLEM DESCRIPTION: When memory-to-memory replication is * * defined at the application level, it * * is found that session entries are * * created within each Data Replication * * Service (DRS) cache instance, as * * opposed to creating an entry only * * for the DRS cache associated with that * * application. * **************************************************************** * RECOMMENDATION: * **************************************************************** When memory-to-memory replication is defined at the application level, multiple DRS cache instances are populated, as opposed to creating an entry only for the DRS cache associated with that application.Problem conclusion Code changes were made within the DRS cache to ensure that session entries are created only for the DRS cache that is associated with the corresponding application. The fix for this APAR is currently targeted for inclusion in cumulative fixes 5.02.16 and 5.1.1.10. Please refer to the recommended updates page for delivery information: http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980Temporary fix Comments
APAR is sysrouted FROM one or more of the following: APAR is sysrouted TO one or more of the following: PK18410 Modules/Macros
Publications Referenced
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Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server > General
Operating system(s):
Software version: 10A
Software edition:
Reference #: PK17746
IBM Group: Software Group
Modified date: Jan 27, 2006
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