APAR status
Closed as program error.
Error description
Dead lock in DRS code cause application server hang.
.
The thread dumps showed most thread in following activity:
.
.
Servlet.Engine.Transports : 824" (TID:0x9B124568,
sys_thread_t:0x3F17CD40, state:CW, native ID:0xD449) prio=5
4XESTACKTRACE at
com.ibm.ws.drs.DRSUtils.getUpdPartTopic(DRSUtils.java(Compiled
Code))
4XESTACKTRACE at
com.ibm.ws.drs.DRSCacheApp.getUpdPartTopic(DRSCacheApp.java(Comp
iled
Code))
4XESTACKTRACE at
com.ibm.ws.webcontainer.httpsession.DRSHttpSessCache.getUpdPartT
opic(DRS
HttpSessCache.java(Compiled Code))
4XESTACKTRACE at
com.ibm.ws.drs.DRSJMS.jmsPubUpd(DRSJMS.java(Compiled Code))
4XESTACKTRACE at
com.ibm.ws.drs.DRSCacheApp.jmsPubUpd(DRSCacheApp.java(Compiled
Code))
4XESTACKTRACE at
com.ibm.ws.drs.DRSAPI.createEntry(DRSAPI.java(Compiled Code))
4XESTACKTRACE at
com.ibm.ws.drs.DRSCacheApp.createEntry(DRSCacheApp.java(Compiled
Code))
Local fix Problem summary
****************************************************************
* USERS AFFECTED: All users of WebSphere Application Server *
* using HTTP Session memory-to-memory *
* replication. *
****************************************************************
* PROBLEM DESCRIPTION: A deadlock in data replication service *
* (DRS) code causes the application *
* server to hang. *
****************************************************************
* RECOMMENDATION: *
****************************************************************
Application server hang caused by the synchronization of a DRS
object.
Javacores/threaddumps showed many threads blocked and waiting
in com.ibm.ws.drs.DRSUtils.getUpdPartTopic(DRSUtils.java)
Problem conclusion
The synchronization of the DRS object was reworked to eliminate
the deadlock.
The fix for this APAR is currently targeted for inclusion
in 5.0.2.15 and 5.1.1.8.
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 |
PK13540 |
Reported component name |
WAS NETWRK DEPL |
Reported component ID |
5630A3601 |
Reported release |
00A |
Status |
CLOSED PER |
PE |
NoPE |
HIPER |
NoHIPER |
Special Attention |
NoSpecatt |
Submitted date |
2005-10-14 |
Closed date |
2005-10-18 |
Last modified date |
2005-10-18 |
APAR is sysrouted FROM one or more of the following:
APAR is sysrouted TO one or more of the following:
Modules/Macros
Publications Referenced
|
Fix information |
Fixed component name |
WAS NETWRK DEPL |
Fixed component ID |
5630A3601 |
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 |
|