PK84245: MESSAGES FILLING UP SYSTEMERR WHEN JOB MANAGER IS STOPPED.

Fixes are available

APAR status

Closed as program error.

Error description

When a deployment manager is registered to a job manager, or an
admin agent has managed nodes that are registered to a job
manager, and the job manager is not running, the SystemErr.log
of the deployment manager or admin agent fills up with messages.

These messages are written to SystemErr.log at each job manager
polling interval (by default, every 30 seconds). Each message
is similar the following:

[1/13/09 15:05:20:500 EST] 00000029 SystemErr     R
com.ibm.syncml4j.SyncMLException: E4:
(com.ibm.syncml4j.dm.DMSession@616b616b)
[1/13/09 15:05:20:515 EST] 00000029 SystemErr     R at
com.ibm.syncml4j.SyncMLException.makeSyncMLException(Unknown
Source)
[1/13/09 15:05:20:515 EST] 00000029 SystemErr     R at
com.ibm.syncml4j.Session.sendMessageEnd(Unknown Source)
[1/13/09 15:05:20:515 EST] 00000029 SystemErr     R at
com.ibm.syncml4j.dm.DMSession.run(Unknown Source)
[1/13/09 15:05:20:515 EST] 00000029 SystemErr     R at
com.ibm.ws.management.system.dmagent.SessionDispatcher.runAs
System(SessionDispatcher.java:314)
[1/13/09 15:05:20:515 EST] 00000029 SystemErr     R at
com.ibm.ws.management.system.dmagent.SessionDispatcher.access
$000(SessionDispatcher.java:49)
[1/13/09 15:05:20:515 EST] 00000029 SystemErr     R at
com.ibm.ws.management.system.dmagent.SessionDispatcher$1.run(
SessionDispatcher.java:277)
[1/13/09 15:05:20:515 EST] 00000029 SystemErr     R at
com.ibm.ws.security.auth.ContextManagerImpl.runAs(ContextMana
gerImpl.java:4359)
[1/13/09 15:05:20:515 EST] 00000029 SystemErr     R at
com.ibm.ws.security.auth.ContextManagerImpl.runAsSystem(Conte
xtManagerImpl.java:4447)
[1/13/09 15:05:20:515 EST] 00000029 SystemErr     R at
com.ibm.ws.security.core.SecurityContext.runAsSystem(Security
Context.java:255)
[1/13/09 15:05:20:515 EST] 00000029 SystemErr     R  at
com.ibm.ws.management.system.dmagent.SessionDispatcher.run(Se
ssionDispatcher.java:283)
[1/13/09 15:05:20:515 EST] 00000029 SystemErr     R  at
java.lang.Thread.run(Thread.java:735)

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  Users of job manager function in IBM        *
*                  WebSphere Application Server V7             *
****************************************************************
* PROBLEM DESCRIPTION: Repeated SyncMLExceptions in            *
*                      SystemErr.log of the admin agent or     *
*                      deployment manager when the job         *
*                      manager is not started.                 *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
As part of normal flexible management function, when a managed
node (either a deployment manager or a node managed by an
admin agent) is registered with a job manager, the deployment
manager or admin agent will periodically attempt to contact
the job manager to see if there are any jobs available. The
amount of time between attempted contacts is called the
polling interval, and is set to 30 seconds by default.

The problem occurs when a deployment manager or admin agent is
running, but the job manager to which a managed node has been
registered has not been started or cannot be contacted. In
such cases, an error is written to the SystemErr.log of the
admin agent or deployment manager at every polling interval.
This can quickly fill the SystemErr.log with repetitive
information, especially when the polling interval is short.

Here is an example of what is printed to SystemErr.log at each
polling interval:

[1/13/09 11:55:49:765 EST] 00000032 SystemErr     R
com.ibm.syncml4j.SyncMLException: E4:
(com.ibm.syncml4j.dm.DMSession@33e933e9)
[1/13/09 11:55:49:765 EST] 00000032 SystemErr     R  at
com.ibm.syncml4j.SyncMLException.makeSyncMLException(Unknown
Source)
[1/13/09 11:55:49:765 EST] 00000032 SystemErr     R  at
com.ibm.syncml4j.Session.sendMessageEnd(Unknown Source)
[1/13/09 11:55:49:765 EST] 00000032 SystemErr     R  at
com.ibm.syncml4j.dm.DMSession.run(Unknown Source)
[1/13/09 11:55:49:765 EST] 00000032 SystemErr     R  at
com.ibm.ws.management.system.dmagent.SessionDispatcher.runAsSyst
em(SessionDispatcher.java:311)
[1/13/09 11:55:49:765 EST] 00000032 SystemErr     R  at
com.ibm.ws.management.system.dmagent.SessionDispatcher.access$00
0(SessionDispatcher.java:49)
[1/13/09 11:55:49:765 EST] 00000032 SystemErr     R  at
com.ibm.ws.management.system.dmagent.SessionDispatcher$1.run(Ses
sionDispatcher.java:277)
[1/13/09 11:55:49:765 EST] 00000032 SystemErr     R  at
com.ibm.ws.security.auth.ContextManagerImpl.runAs(ContextManager
Impl.java:4359)
[1/13/09 11:55:49:765 EST] 00000032 SystemErr     R  at
com.ibm.ws.security.auth.ContextManagerImpl.runAsSystem(ContextM
anagerImpl.java:4447)
[1/13/09 11:55:49:765 EST] 00000032 SystemErr     R  at
com.ibm.ws.security.core.SecurityContext.runAsSystem(SecurityCon
text.java:255)
[1/13/09 11:55:49:765 EST] 00000032 SystemErr     R  at
com.ibm.ws.management.system.dmagent.SessionDispatcher.run(Sessi
onDispatcher.java:283)
[1/13/09 11:55:49:781 EST] 00000032 SystemErr     R  at
java.lang.Thread.run(Thread.java:735)

Problem conclusion

The code was modified to not print any information to the
admin agent or deployment manager SystemErr.log when the job
manager cannot be contacted during routine polling. Instead,
the following new message is periodically printed to the
SystemOut.log of the admin agent or deployment manager:

CWWSY0427I: The job manager at the MYHOST host and MYPORT port
cannot be contacted.

In the above message, MYHOST and MYPORT are replaced with the
actual hostname and port number of the job manager that cannot
be contacted.

If there are multiple job managers that are not started or
cannot be contacted, a separate message will print
periodically for each job manager.

If the polling interval is 10 minutes or longer, this message
will print to SystemOut.log every polling interval. If the
polling interval is less than 10 minutes, the message will
print no more often than every 10 minutes.

Finally, if trace is enabled on the admin agent or deployment
manager (using the specification
com.ibm.ws.management.system.dmagent.*=all), then statements
showing the failure to communicate with the job manager are
still logged at every polling interval to the trace.log file.

The fix for this APAR is currently targeted for inclusion in
fix pack 7.0.0.5.  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
PK84245
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
2009-04-07
Closed date
2009-05-18
Last modified date
2009-05-18

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":"BU053","label":"Cloud & Data Platform"},"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:
24 October 2021

Tips

PK84245: MESSAGES FILLING UP SYSTEMERR WHEN JOB MANAGER IS STOPPED.

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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