PQ69273: JAVA.UTIL.CONCURRENTMODIFICATIONEXCEPTION RECEIVED DURING PLUGIN REGEN | |||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description At adminserver startup, multiple appservers are configured with regen plugin on startup. This can result in a ConcurrentModificationException. Symptoms in the logs can be AEPluginCfg W PLGN0063W: An exception occurred while generating the plugin configuration Exceptions in the tracefile are of the nature:Exception occurred loading deployment descriptor for module examples.war. Calls to getDeploymentInfo are not synchronized properly. PLGN0063W plugin regen appserver WAS websphereLocal fix Only set the slowest appserver with the config option regen at startup or use ./GenPluginCfg.sh -adminNodeName <node_name>Problem summary **************************************************************** * USERS AFFECTED: WebSphere Application Server 4.0.4 and the * * problem could occur on prior 4.0 versions * **************************************************************** * PROBLEM DESCRIPTION: Concurrent start of two applications * * causes exceptions * **************************************************************** * RECOMMENDATION: * **************************************************************** User has automatic generation of plugin configuration data enabled. On a situation such as adminserver start, concurrent start of two applications causes exceptions due to regen plugin related failure. Exception to expect: java.util.ConcurrentModificationExceptionProblem conclusion The problem is caused by thread timing and the fix ensures proper synchronization in a concurrent access scenario.Temporary fix packaged and posted stand-alone eFix on wasdoc0 for customer to test.Comments
APAR is sysrouted FROM one or more of the following: APAR is sysrouted TO one or more of the following: Modules/Macros
SRLS
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Document Information |
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server > General
Operating system(s):
Software version: 400
Software edition:
Reference #: PQ69273
IBM Group: Software Group
Modified date: Jan 13, 2003
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