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.

URL LANGUAGE SIZE(Bytes)
UpdateInstaller US English 7250000

Installation Instructions

Please review the readme.txt for detailed installation instructions.

URL LANGUAGE SIZE(Bytes)
Readme US English 8445

Download package

Download RELEASE DATE LANGUAGE SIZE(Bytes) Download Options
What is Fix Central (FC)?
7.0.0.25-WS-WAS-IFPM81363 10 Apr 2013 US English 47145 FC FTP
7.0.0.27-WS-WAS-IFPM81363 10 Apr 2013 US English 47163 FC FTP

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).

Problems (APARS) fixed
PM81363

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Document information


More support for:

WebSphere Application Server
SIP Container/SIP Proxy Server

Software version:

7.0.0.25, 7.0.0.27

Operating system(s):

AIX, HP-UX, IBM i, Linux, Solaris, Windows, z/OS

Software edition:

Advanced, Base

Reference #:

4034739

Modified date:

2013-04-14

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