Disabling the Just-In-Time (JIT) Compiler in WebSphere Application Server V4.0
 Technote (FAQ)
 
Problem
How to disable the JIT compiler for an application server in releases of WebSphere® Application Server V4.0.
 
Solution
Sometimes a problem in the JIT compiler can cause the Java™ virtual machine (JVM™), or application server, to crash. If analysis of the core file (UNIX® platforms) or user.dmp file (Windows® platforms) indicates the JIT Compiler as the cause, the following steps can be taken to disable the JIT compiler:

Note: If you are not sure that the crash is caused by the JIT compiler, open a Problem Management Record (PMR) with IBM Support to analyze the core or user.dmp.

Advanced Edition

  1. In the administrative client, navigate to the application server and select it.
  2. Click the JVM Settings tab.
  3. Click Advanced JVM Settings.
  4. Check the box disable JIT.
  5. Click OK.
  6. Click apply.
  7. Stop and start the Application Server.

Advanced Edition Single Server

  1. In the administrative client, expand your node and then expand the application servers folder.
  2. Select the Application Server and expand it.
  3. Expand Process Definition.
  4. Select JVM Settings.
  5. Place a check mark next to disable JIT.
  6. Click OK.
  7. At the top of the administrative client, click Save to save the changes to your configuration.
  8. Stop and start the Application Server.
 
 
 


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > Java SDK
Operating system(s): HP-UX
Software version: 4.0.7
Software edition:
Reference #: 1084184
IBM Group: Software Group
Modified date: Feb 17, 2005