PM53035: WEBSPHERE APPLICATION SERVER HOSTING THE SERVICE INTEGRATION BUS MESSAGING ENGINE THROWS CWSIT0120E ERRORS

Fixes are available

APAR status

Closed as program error.

Error description

During startup, CWSIT0120E errors are logged in the
SystemOut.log of WebSphere Application Server v7.0.x
cluster hosting the Service Integration Bus messaging
engine. Errors are also logged in the SystemOut.log of
other cluster that is a member of the same BUS.


Cluster A:
CWSIT0118E: During an attempt to connect to a remote
messaging engine {0} on bus {1}, incomplete information
meant that it was not possible to validate the remote
messaging engine''s identity


CWSIT0034E: A messaging engine to messaging engine request
failed in messaging engine {0} in bus {1} with reason: {2}.
CWSIT0120E: It was not possible to validate the identity of
the connecting messaging engine {0} on bus {1}



Cluster B:
CWSIT0119E: A connection attempt was made by remote
messaging engine {0} on bus {1}, but incomplete information
meant that it was not possible to validate the remote
messaging engine''s identity

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  Users of the default messaging provider for *
*                  IBM WebSphere Application Server 7.0        *
****************************************************************
* PROBLEM DESCRIPTION: WebSphere Application Server startup    *
*                      and shutdown operation take             *
*                      considerable amount of time and thread  *
*                      dumps indicate that there are WLM       *
*                      threads that are processing SIB         *
*                      code.Errors like CWSIT0120E are         *
*                      observed in SystemOut and traces.       *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
When WLM notifies SIB about any processing that has to happen
due to change in status of destination or any Messaging Engine
SIB was using WLM thread to process the notification to
completion. This leads the WLM threads to be held by SIB for a
long time. In turn leading to contention of resources and
shortage of WLM threads to process WLM work.

Problem conclusion

To fix the problem SIB code has been modified to absorb the
notification from WLM and spawn new thread to process the work
related to the notification. This results in faster release of
WLM thread.

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
PM53035
Reported component name
WAS SIB & SIBWS
Reported component ID
620800101
Reported release
300
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2011-11-29
Closed date
2012-03-21
Last modified date
2013-11-25

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
WAS SIB & SIBWS
Fixed component ID
620800101

Applicable component levels

R300 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

PM53035: WEBSPHERE APPLICATION SERVER HOSTING THE SERVICE INTEGRATION BUS MESSAGING ENGINE THROWS CWSIT0120E ERRORS

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

R300 PSY

Document Information

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