PQ71625: JVM HEAP GROWTH IN WEBSPHERE APPLICATION SERVER V4.01 Z/OS | |||||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description Customer experiences a growth in JVM heap usage when running applications under load. This can be attributed to WebSphere not properly cleaning up after a request is driven.Local fix Problem summary **************************************************************** * USERS AFFECTED: All users of WebSphere Application Server * * V4.0.1 for z/OS and OS/390. * **************************************************************** * PROBLEM DESCRIPTION: Customer experiences a growth in JVM * * heap usage when running applications * * under load. This can be attributed to * * WebSphere not properly cleaning up * * after a request is driven. * **************************************************************** * RECOMMENDATION: * **************************************************************** The webrequest to a J2EEServer is invoked by the RemoteWebContainerBean's dispatchByURI method. The RemoteWebContainerBeans are stateless session beans and are reusable, but there are instances when these beans are destroyed. When these beans are destroyed there are some objects which have strong references which are never destroyed by the JVM. This is causing the memory leak.Problem conclusion The objects which are not Garbage collected by the JVM are explicitly released when the RemoteWebAppBean is destroyed. APAR PQ71625 is associated with SERVICE LEVEL W401502 of WebSphere Application Server V4.0.1 for z/OS and OS/390.Temporary fix Comments
APAR is sysrouted FROM one or more of the following: APAR is sysrouted TO one or more of the following: Modules/Macros
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Document Information |
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server for z/OS
Operating system(s):
Software version: 401
Software edition:
Reference #: PQ71625
IBM Group: Software Group
Modified date: Apr 3, 2003
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