Enabling the Just In Time (JIT) compiler causes Network Deployment Manager to hang
 Technote (troubleshooting)
 
Problem(Abstract)

A bug in the Java™ 2 Software Developer Kit (SDK) related to the JIT compiler can cause the administrative server process to hang in any release of IBM® WebSphere® Application Server V5.0 when the JIT compiler is enabled.
 
Cause
The symptoms of this problem are:

1. wsadmin using SOAP or RMI connectivity fails with the following exception:

WASX7023E: Error creating "SOAP" connection to host "myhost"; exception
information: [SOAPException: faultCode=SOAP-ENV:Client; msg=Read timed
out; targetException=java.io.InterruptedIOException: Read timed out]  
WASX7213I: This scripting client is not connected to a server process;


2. The administrative console hangs. If you turn on dmgr trace, you see the following exception in the trace.log:

[11/11/03 11:06:15:104 EST] 6bdd35d8 HttpConnectio d There is no process
to read data written to a pipe.                                          
                                java.io.IOException: There is no        
process to read data written to a pipe.                                  
at java.net.SocketOutputStream.socketWrite(Native Method)              
at java.net.SocketOutputStream.write(SocketOutputStream.java(Compiled  
Code))    


3. During the hang condition, javacores are not generated when a kill -3 is issued on the administrative server process.

This problem is caused by a JIT-related bug in the Java 2 SDK.
 
Resolving the problem
There are two possible solutions to this problem:
 
 
Cross Reference information
Segment Product Component Platform Version Edition
Application Servers Runtimes for Java Technology Java SDK
 
 


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > Hangs/Performance Degradation
Operating system(s): AIX
Software version: 5.0.2
Software edition:
Reference #: 1170242
IBM Group: Software Group
Modified date: Jun 30, 2007