APAR status
Closed as program error.
Error description
A hang in DRS. The hang was caused by a thread deadlock
between two threads. One was in "getEntry" while the
other was trying to connect to an alternate replicator
You will see most of the "Servlet.Engine.Transports threads in
a "waiting for monitor entry" state
Sample stack trace:
at com.ibm.ws.drs.DRSPools.getUpdJMS(DRSPools.java:139)
- waiting to lock <0x2617b2d0> (a java.lang.Object)
at com.ibm.ws.drs.DRSCacheApp.getUpdJMS(DRSCacheApp.java:1650)
at com.ibm.ws.drs.DRSJMS.jmsPubUpd(DRSJMS.java:118)
at com.ibm.ws.drs.DRSCacheApp.jmsPubUpd(DRSCacheApp.java:3002)
at com.ibm.ws.drs.DRSAPI.createEntry(DRSAPI.java:657)
at
com.ibm.ws.drs.DRSCacheApp.createEntry(DRSCacheApp.java:2606)
Local fix Problem summary
****************************************************************
* USERS AFFECTED: This problem may be experienced by all *
* users of memory-to-memory session *
* replication and Dynamic Cache replication. *
****************************************************************
* PROBLEM DESCRIPTION: Thread deadlock within the internal *
* data replication service. *
****************************************************************
* RECOMMENDATION: *
****************************************************************
An intermittent thread deadlock existed within the internal
Data Replication Service between one thread handling a
received message and another thread handling a transmitted
message.
Problem conclusion
The fix for this problem will be delivered in the next
cumulative fix on all WebSphere Application Server 5.x.x
versions. These are most likely 5.0.2.7 and 5.1.0.5.
Temporary fix Comments
APAR information |
APAR number |
PQ88985 |
Reported component name |
WAS BASE 5.0 |
Reported component ID |
5630A3600 |
Reported release |
00H |
Status |
CLOSED PER |
PE |
NoPE |
HIPER |
NoHIPER |
Special Attention |
NoSpecatt |
Submitted date |
2004-05-18 |
Closed date |
2004-06-21 |
Last modified date |
2004-07-06 |
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Modules/Macros
Publications Referenced
Applicable component levels |
R003 PSY |
UP |
R00A PSY |
UP |
R00H PSY |
UP |
R00I PSY |
UP |
R00P PSY |
UP |
R00S PSY |
UP |
R00W PSY |
UP |
R103 PSY |
UP |
R10A PSY |
UP |
R10H PSY |
UP |
R10I PSY |
UP |
R10P PSY |
UP |
R10S PSY |
UP |
R10W PSY |
UP |
|