IBM Support

PM81363; 7.0.0.27: possible excessive cpu usage conditions occur with sip

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Abstract

NullPointerException thrown in SIP container when application proxies the response.

Download Description

PM81363 resolves the following problem:

ERROR DESCRIPTION:
If you have alredy done:
IBM Sametime wiki : Tuning : Sametime 8.5.2 Tuning Guide
http://www-10.lotus.com/ldd/stwiki.nsf/dx/Sametime_8.5.2_Tuning_Guide
IBM PM45352: SIP PROXY ISSUES REVERSE DNS LOOKUP ON NEW CLIENT
CONNECTIONS
http://www.ibm.com/support/docview.wss?uid=swg1PM45352

IBM Using Transport Layer Security (TLS) with the Sametime
Media Manager 8.5.2 server and pre-8.5.2 Sametime clients in a
clustered environment
https://www.ibm.com/support/docview.wss?uid=swg21567676
Java cores show many instances of
com.ibm.ws.sip.container.tu.TransactionUserWrapper
listing it as a possible leak suspect.
There are also entries in the logs showing a NullPointer
Exception:
SignalingEndO E SignalingEndOfTask
java.lang.NullPointerException
at com.ibm.ws.sip.container.proxy.StatefullProxy.
handleStrayInvite2xx(StatefullProxy.java:1360)
at com.ibm.ws.sip.container.tu.TransactionUserImpl.
processProxyStrayInvite2xx(TransactionUserImpl.java:3422)
at com.ibm.ws.sip.container.tu.TransactionUserImpl.
processStrayInvite2xx(TransactionUserImpl.java:3320)
at com.ibm.ws.sip.container.tu.TransactionUserImpl.
processStrayResponse(TransactionUserImpl.java:3289)
at com.ibm.ws.sip.container.tu.TransactionUserWrapper.
processStrayResponse(TransactionUserWrapper.java:704)
at com.ibm.ws.sip.container.router.tasks.
StrayResponseRoutedTask.doTask
(StrayResponseRoutedTask.java:97)
at com.ibm.ws.sip.container.router.tasks.RoutedTask.
run(RoutedTask.java:76)
at com.ibm.ws.sip.container.was.SignalingEndOfTask.
run(SignalingEndOfTask.java:67)
at com.ibm.ws.util.ThreadPool$Worker.
run(ThreadPool.java:1646)

LOCAL FIX:
NONE

PROBLEM SUMMARY

USERS AFFECTED:
All users of IBM WebSphere Application Server V7.0 Session Initiation Protocol (SIP)

PROBLEM DESCRIPTION:
NullPointerException thrown in SIP container when application proxies the response.

RECOMMENDATION:
None

When a stray 2xx response is received in a Proxy application, a NullPointerException exception is thrown in the SIP Container

PROBLEM CONCLUSION:
The SIP cotanier now checks if the received response is a stray response, if so, it is not forwared to the application.

The fix for this APAR is currently targeted for inclusion in fix pack 7.0.0.27. Please refer to the Recommended Updates page for delivery information:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980

Prerequisites

Please download the UpdateInstaller below to install this fix.

[{"PRLabel":"UpdateInstaller","PRLang":"US English","PRSize":"7250000","PRPlat":{"label":"AIX","code":"PF002"},"PRURL":"http://www.ibm.com/support/docview.wss?rs=180&uid=swg21205991"}]

Installation Instructions

Please review the readme.txt for detailed installation instructions.

[{"INLabel":"Readme","INLang":"US English","INSize":"8445","INURL":"ftp://public.dhe.ibm.com/software/websphere/appserv/support/fixes/PM81363/readme.txt"}]
On
[{"DNLabel":"7.0.0.25-WS-WAS-IFPM81363","DNDate":"10 Apr 2013","DNLang":"US English","DNSize":"47145","DNPlat":{"label":"AIX","code":"PF002"},"DNURL":"http://www.ibm.com/support/fixcentral/quickorder?fixids=7.0.0.25-WS-WAS-IFPM81363&product=ibm%2FWebSphere%2FWebSphere+Application+Server&source=dbluesearch","DNURL_FTP":"ftp://public.dhe.ibm.com/software/websphere/appserv/support/fixes/PM81363/7.0.0.25-ws-was-ifpm81363.pak","DDURL":null},{"DNLabel":"7.0.0.27-WS-WAS-IFPM81363","DNDate":"10 Apr 2013","DNLang":"US English","DNSize":"47163","DNPlat":{"label":"AIX","code":"PF002"},"DNURL":"http://www.ibm.com/support/fixcentral/quickorder?fixids=7.0.0.27-WS-WAS-IFPM81363&product=ibm%2FWebSphere%2FWebSphere+Application+Server&source=dbluesearch","DNURL_FTP":"ftp://public.dhe.ibm.com/software/websphere/appserv/support/fixes/PM81363/7.0.0.27-ws-was-ifpm81363.pak","DDURL":null}]

Technical Support

Contact IBM Support using SR (http://www.ibm.com/software/support/probsub.html), visit the WebSphere Application Server support web site (http://www.ibm.com/software/webservers/appserv/was/support/), or contact 1-800-IBM-SERV (U.S. only).

[{"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Component":"SIP Container\/SIP Proxy Server","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"},{"code":"PF035","label":"z\/OS"}],"Version":"7.0.0.25;7.0.0.27","Edition":"Advanced;Base","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
15 June 2018

UID

swg24034739