PM53333: SPECIFY MAXIMUM NUMBER OF THREAD DUMPS WHEN MONITORING HUNG THRE ADS

Fixes are available

APAR status

Closed as program error.

Error description

All hung threads are logged and thread dumps produced when the
thread monitor detects them.  This APAR allows a configurable
maximum number of dumps.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server V7.0                                 *
****************************************************************
* PROBLEM DESCRIPTION: V7.0 does not provide an option to      *
*                      limit the number of dumps created       *
*                      when hung threads are detected.         *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
WebSphere Application Server provides a thread monitoring
utility that detects potentially-hung threads on WebSphere
Application Server thread pools, along with an option to
create a full thread dump when such a situation is
detected.  In V7.0, this setting is either enabled or disabled
(the property set to "true" or "false", respectively), with
unlimited thread dumps created in the enabled case.  This
situation dissuaded some users from utilizing this function,
as large numbers of hung threads could deplete disk space.  In
V8.0 andh higher, the property was changed to accept integer
values, which would specify a maximum number of thread dumps
to create over the life of the JVM.

Problem conclusion

This APAR ports V8.0's support for limiting the number of
thread dumps to V7.0.  To enable this, set the system property
"com.ibm.websphere.threadmonitor.dump.java" to an integer value.

The fix for this APAR is currently targeted for inclusion in
fix pack 7.0.0.25.  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
PM53333
Reported component name
WEBS APP SERV N
Reported component ID
5724H8800
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-12-01
Closed date
2012-08-20
Last modified date
2012-08-20

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

R700 PSY
UP

[{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
28 October 2021

Tips

PM53333: SPECIFY MAXIMUM NUMBER OF THREAD DUMPS WHEN MONITORING HUNG THRE ADS

Fixes are available

Subscribe

APAR status

Closed as program error.

Error description

Local fix

Problem summary

Problem conclusion

Temporary fix

Comments

APAR Information

APAR number

Reported component name

Reported component ID

Reported release

Status

PE

HIPER

Special Attention

Submitted date

Closed date

Last modified date

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

Fixed component ID

Applicable component levels

R700 PSY

Document Information

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