APAR status
Closed as program error.
Error description
The following deadlock between theads is seen while processing Web messaging: ---------------------------------------------------------------- "WebContainer : 196" (TID:0x0000000016F7D800, sys_thread_t:0x00002AABB82A6C28, state:CW, native ID:0x0000000000004648) prio=5 at java/lang/Object.wait(Native Method) at java/lang/Object.wait(Object.java:199(Compiled Code)) at com/ibm/ws/sib/comms/client/proxyqueue/queue/ AsynchConsumerQueue.waitUntilEmpty (AsynchConsumerQueue.java:532(Compiled Code)) at com/ibm/ws/sib/comms/client/proxyqueue/impl/ AsynchConsumerProxyQueueImpl.stopping (AsynchConsumerProxyQueueImpl.java:544(Compiled Code)) at com/ibm/ws/sib/comms/client/ConsumerSession Proxy.stop(ConsumerSessionProxy.java:1501(Compiled Code)) at com/ibm/ws/webmsg/conduit/coreWPM/CoreWPMConduitManager. removeAsyncConsumer(CoreWPMConduitManager.java:1489 (Compiled Code)) ---------------------------------------------------------------- 3XMTHREADINFO "Asynchronous Consumer : 14" (TID:0x00000000151C5600, sys_thread_t:0x0000000014D99EB8, state:B, native ID:0x00000000000044AE) prio=5 at com/ibm/ws/webmsg/conduit/coreWPM/CoreWPMConduitManager .close(CoreWPMConduitManager.java:906) at com/ibm/ws/webmsg/conduit/coreWPM/CoreWPMConduitManager .close(CoreWPMConduitManager.java:889) at com/ibm/ws/webmsg/client/bayeux/cfw/protocol/vone/ CFWClientImpl.shutdown(CFWClientImpl.java:443) at com/ibm/ws/webmsg/client/bayeux/cfw/protocol/vone/ CFWClientImpl.conduitFailed(CFWClientImpl.java:906) at com/ibm/ws/webmsg/conduit/coreWPM/CoreWPMConduitManager .asynchronousException(CoreWPMConduitManager.java:1661) at com/ibm/ws/sib/comms/client/proxyqueue/impl/ AsynchConsumerProxyQueueImpl.processExceptions (AsynchConsumerProxyQueueImpl.java:406) at com/ibm/ws/sib/comms/client/proxyqueue/impl/ AsynchConsumerProxyQueueImpl.deliverException (AsynchConsumerProxyQueueImpl.java:362) at com/ibm/ws/sib/comms/client/ConsumerSessionProxy. deliverAsyncException(ConsumerSessionProxy.java:2331) at com/ibm/ws/sib/comms/client/proxyqueue/queue/ AsynchConsumerQueue.deliverBatch (AsynchConsumerQueue.java:462) at com/ibm/ws/sib/comms/client/proxyqueue/impl/ AsynchConsumerProxyQueueImpl.deliverMessage (AsynchConsumerProxyQueue Impl.java:747) ----------------------------------------------------------------
Local fix
Problem summary
**************************************************************** * USERS AFFECTED: All users of IBM WebSphere Application * * Server using the feature pack for Web 2.0 * * Web messaging service function configured * * with a remote messaging engine under load. * **************************************************************** * PROBLEM DESCRIPTION: A service integration bus (SIB) * * Exception can cause deadlock when * * running Web messaging service function. * **************************************************************** * RECOMMENDATION: * **************************************************************** Web container thead deadlock can occur when the Feature Pack for Web 2.0 Web messaging service function is configured to use remote Messaging Engine (ME). This deadlock can occur under load when an exception occurs in the Messaging code .
Problem conclusion
The Web messaging service code has been changed to fix the deadlock problem. The fix for this APAR is currently targeted for inclusion in fix packs 6.1.0.31 and 7.0.0.11. Please refer to the Recommended Updates page for delivery information: http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
Temporary fix
Comments
APAR Information
APAR number
PK97000
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
61I
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2009-09-23
Closed date
2009-12-10
Last modified date
2009-12-10
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Fix information
Fixed component name
WEBS APP SERV N
Fixed component ID
5724H8800
Applicable component levels
R61A PSY
UP
R61H PSY
UP
R61I PSY
UP
R61P PSY
UP
R61S PSY
UP
R61W PSY
UP
R61Z PSY
UP
R700 PSY
UP
[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"6.1","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
Document Information
Modified date:
10 February 2022