PK81028: NULLPOINTEREXCEPTION IN TWSS CODE CAUSED BY SIP CONTAINER DUE TO DRS_SASATTRMG IS NULL IN A CLUSTER.

Fixes are available

APAR status

Closed as program error.

Error description

NullpointerException in TWSS code caused by Session Initiation
Protocol (SIP) container due to DRS_SASAttrMg is null

Details:

The following tests are conductions in a WebSphere Application
Stever V7.0.0.1 environment. A 2 node cluster [Clust_App1 and
Clust_App2].

With the node [Clust_App1] that has successfully processed the
web service operation "getUserPresence" the traces show this
as the output:

[2/4/09 16:04:02:200 GMT+05:30] 00000036 DRS_SASAttrMg >
DRS_SASAttrMgr
get ENTRY Id = Clust.App1.1233741992796.0_1 Info =
com.ibm.ws.sip.container.servlets.WASXSipApplicationSessionImpl@
58e058e
com.ibm.soa.parlayx21.presence.impl.PermissionTable
[2/4/09 16:04:02:200 GMT+05:30] 00000036 StandAloneSAS >
StandAloneSASAttrRepoMgr get ENTRY Id =
Clust.App1.1233741992796.0_1
Info =
com.ibm.ws.sip.container.servlets.WASXSipApplicationSessionImpl@
58e058e
com.ibm.soa.parlayx21.presence.impl.PermissionTable
[2/4/09 16:04:02:200 GMT+05:30] 00000036 StandAloneSAS <
StandAloneSASAttrRepoMgr get RETURN 2
[2/4/09 16:04:02:200 GMT+05:30] 00000036 DRS_SASAttrMg 3
DRS_SASAttrMgr
get found something:class
com.ibm.soa.parlayx21.presence.impl.PermissionTable@1433687412;e
ntries={
}

Referring to the logs for the second node Clust_App2, the logs
show the following:

[2/4/09 16:38:05:058 GMT+05:30] 00000040 DRS_SASAttrMg >
DRS_SASAttrMgr
get ENTRY Id = Clust.App2.1233745025623.0_2 Info =
com.ibm.ws.sip.container.servlets.WASXSipApplicationSessionImpl@
2f242f24
com.ibm.soa.parlayx21.presence.impl.PermissionTable
[2/4/09 16:38:05:058 GMT+05:30] 00000040 StandAloneSAS >
StandAloneSASAttrRepoMgr get ENTRY Id =
Clust.App2.1233745025623.0_2
Info =
com.ibm.ws.sip.container.servlets.WASXSipApplicationSessionImpl@
2f242f24
com.ibm.soa.parlayx21.presence.impl.PermissionTable
[2/4/09 16:38:05:058 GMT+05:30] 00000040 StandAloneSAS <
StandAloneSASAttrRepoMgr get RETURN nothing
[2/4/09 16:38:05:058 GMT+05:30] 00000040 DRS_SASAttrMg 3
DRS_SASAttrMgr
get found something:null

Here is when we see the NullPointerException thrown. Ideally
when the application makes a call for the required web service
operation, the DRS_SASAttrMg should be returning a value for the
PermissionTable which in the 2nd node is null. From the
analysis this is happening at the SIP container end. The web
service impl is a SIP-based service.

Local fix

Problem summary

****************************************************************
* USERS AFFECTED:  All users of WebSphere Application Server   *
*                  V7.0 Session Initiation Protocol (SIP)      *
*                  container                                   *
****************************************************************
* PROBLEM DESCRIPTION: Application Session was removed from    *
*                      replication when one of it's HTTP       *
*                      sessions was removed                    *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
If an HTTP session was invalidated on a converged SIP-HTTP
application, and later a server in the cluster fails and a
failover occurs, the Application Session that owned that HTTP
session might not be available on the backup server.

Problem conclusion

Only the HTTP session will be removed from the replication
backup and not the owning Application Session

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
PK81028
Reported component name
WEBSPHERE APP S
Reported component ID
5724J0800
Reported release
700
Status
CLOSED PER
PE
NoPE
HIPER
NoHIPER
Special Attention
NoSpecatt
Submitted date
2009-02-19
Closed date
2009-04-03
Last modified date
2009-04-03

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
WEBSPHERE APP S
Fixed component ID
5724J0800

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

PK81028: NULLPOINTEREXCEPTION IN TWSS CODE CAUSED BY SIP CONTAINER DUE TO DRS_SASATTRMG IS NULL IN A CLUSTER.

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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