PK11595: WEBSPHERE APPLICATION SERVER DRS DEADLOCK IN THE DISTHUB | |||||||||||||||||||||||||||||||||||||||||||
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![]() APAR status Closed as program error. Error description Roll up of Distributed apars relating to DRS : . PK08259 - DEAD LOCK, HANG IN DRS -- IN METHOD DRSPOOLS.GETACCJMS PK07887 - DURING PERF TEST,MEMORY GROWS FROM 600MB TO1.5GB OVER 45 MINS POOLED TOPICSUBSCRIBER WRAPPERS ARE NOT GETTING UNSUBSCRIBEDLocal fix Problem summary **************************************************************** * USERS AFFECTED: All users of WebSphere Application Server * * V5.0 for z/OS * **************************************************************** * PROBLEM DESCRIPTION: Hang caused by lost notify in * * replication service: getAccJMS * **************************************************************** * RECOMMENDATION: * **************************************************************** Application server hang caused by lost notify in wait/notify operation in DRSPools.getAccJMS of replication service. Sequential javacores/threaddumps showed many threads blocked, unchanging and waiting in DRSPools.getAccJMS.Problem conclusion The synchronization on the lock for the pooled objects was reworked to eliminate the deadlock. The problem for which this APAR was opened corresponds to distributed APAR PK08259. In order to port the code for PK08259 to z/OS, it was necessary to roll up the z/OS Data Replication Service (DRS) component code to the latest DRS code planned for distributed V5.1.1.7 systems (level cf70537.02). The following defects are included in the Rollup: Defect Abstract PK07187 Hang in data replication server (DRS) object replication operations. PK07887 Replication causes memory growth when resets occu PK07954 Replication communication times out when another instance has been stopped. PK08259 Hang caused by lost notify in replication service: getAccJMS PK11117 Data Replication Domain has an option to encrypt the data during replication. It was observed that ClassCastExceptions were thrown by the server receiving the replica. This problem does not happen if encryption is enabled. This exception results in the update to the session replica not being saved.. APAR PK11595 is associated with SERVICE LEVEL W502035 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: PK11597 Modules/Macros
Publications Referenced
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Document Information |
Current web document: swg1PK11595.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 #: PK11595
IBM Group: Software Group
Modified date: Nov 3, 2005
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