PK85831: RARE NULLPOINTEREXCEPTION WHEN USING OBJECTGRID (A.K.A.EXTREMESCALE) AS SIP SESSION REPLICATION SERVICE.

Fixes are available

APAR status

Closed as program error.

Error description

The NullpointerException will be seen in class:
ParametersImpl method:encode . The reason for that exception is
multiply threads have changed the SIP message and caused
unstable state. This problem is very hard to reproduce though.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Extended         *
*                  Deployment who use the Session Initiation   *
*                  Protocol (SIP) Container and have high      *
*                  availability (HA) enabled.                  *
****************************************************************
* PROBLEM DESCRIPTION: When SIP Session replication service    *
*                      is set to be ObjectGrid, there          *
*                      is a rare NullPointerException under    *
*                      stress.                                 *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
Concurrent modification to SIP message while ObjectGrid is
serializing it and another SIP container thread is changing
that SIP message. The problem will be a NullPointerException
in encodeValue method of some SIP message header.

Problem conclusion

When using ObjectGrid with SIP container, the SIP message is
cloned before it is sent to replication. Therefore, not
facing concurrent modifications.

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
PK85831
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
2009-05-04
Closed date
2009-05-11
Last modified date
2009-05-11

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

PK85831: RARE NULLPOINTEREXCEPTION WHEN USING OBJECTGRID (A.K.A.EXTREMESCALE) AS SIP SESSION REPLICATION SERVICE.

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

Share your feedback

Need support?