PK05786: TIMEOUT IN DRS CODE | |||||||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description Timeout (EC3 abend with RC=04130007) as a result of a hang thread. Timeout occurred for the following thread: condWait sysMonitorWait lkMonitorEnter com/ibm/ws/drs/DRSPools.getUpdJMS com/ibm/ws/drs/DRSCacheApp.getUpdJMS com/ibm/ws/drs/DRSJMS.jmsPubUpd com/ibm/ws/drs/DRSCacheApp.jmsPubUpd com/ibm/ws/drs/DRSAPI.createEntry com/ibm/ws/drs/DRSCacheApp.createEntry com/ibm/ws/webcontainer/httpsession/DRSHttpSessCache.createEntry com/ibm/ws/webcontainer/httpsession/DRSBackedHashtable.ejbCreate Jformat shows this thread was waiting for object java/util/Linke dList held by the following thread: condWait sysMonitorWait lkMonitorWait JVM_MonitorWait java/lang/Object.wait java/lang/Object.wait com/ibm/disthub/impl/jms/SessionDispatcher.stop com/ibm/disthub/impl/jms/SessionImpl.stop com/ibm/disthub/impl/jms/SessionImpl.close com/ibm/disthub/impl/jms/TopicSessionImpl.close com/ibm/disthub/impl/jms/TopicSessionImpl.close com/ibm/ws/drs/DRSCloseJMS.closeAccJMS com/ibm/ws/drs/DRSCacheApp.closeAccJMS com/ibm/ws/drs/DRSCacheApp.closeJMSClient com/ibm/ws/drs/DRSResetJMS.resetJMS com/ibm/ws/drs/DRSCacheApp.resetJMS com/ibm/ws/drs/JMSSessPoolWrapper.onException ... and this thread is in turn waiting for the following object shown as <unowned): com/ibm/disthub/impl/jms/SessionDispatcherLocal fix Problem summary **************************************************************** * USERS AFFECTED: All users of WebSphere Application Server * * V5.0 for z/OS * **************************************************************** * PROBLEM DESCRIPTION: Fixes a problem with 'get' operations * * in the DRS (Data Replication Service) * * component. * **************************************************************** * RECOMMENDATION: * **************************************************************** This fixes an intermittent problem with 'get' operations in the DRS (Data Replication Service) component . An internal object with communication resources was not being properly synchronized. As a result, it could be incorrectly shared by multiple threads, and messages would not be properly received. This problem could be experienced by all WebSphere Application Server components which use the services of DRS, including HttpSession memory-to-memory replication.Problem conclusion The problem for which this APAR was opened corresponds to distributed APAR PK00049. In order to port the code for PK00049 to z/OS, it was necessary to roll up the z/OS DRS component code to the latest DRS code available for distributed systems (level cf40516.05). Recent severity 1 APARs PK02412 and PK02464 are also included. The following list the defects included in the Rollup: Defect Abstract PQ79493 Data replication between peer Session Manager caches or Dynamic caches breaks if the connected replicator is brought down and is unable to recover. PQ90721 When remote replicators are configured, customer is seeing Java.lang.IllegalArgumentException PQ91090 DRSw0001e and DRSw0005i are repeatedly seen with Java.io.ioexception: broken pipe. PQ91134 Correct the order of replicators chosen by the reset function. PQ91650 Message larger than max_message_size should be discarded instead of replicated, due to connection reset and exceptions. PQ97151 Deadlock in DRSResetJMS. PQ97924 Session replication function is not working. PK00049 Fixes a problem in the DRS (Data Replication Service) component with 'get' operations PK02412 SESSIONID is reused even though JVM parameter "useinvalidatedid=false" is specified for WebSphere Session Manager PK02464 Data not replicated due to replicator being marked down by pingPeer function PK05786 Timeout (EC3 abend with RC=04130007) as a result of a hung thread. APAR PK05786 is associated with SERVICE LEVEL W502032 of WebSphere Application Server V5.0 for z/OS.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
Publications Referenced
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Document Information |
Current web document: swg1PK05786.html
Product categories: Software > Application Servers >
Distributed Application & Web Servers > WebSphere Application
Server for z/OS
Operating system(s):
Software version: 500
Software edition:
Reference #: PK05786
IBM Group: Software Group
Modified date: Aug 2, 2005
(C) Copyright IBM Corporation 2000, 2009. All Rights Reserved.