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Problem |
MustGather for problems with the WebSphere® Application
Server Servlet Engine/Web Container component for all releases of V4.0.
Gathering this information before calling IBM® support will help
familiarize you with the troubleshooting process and save you time. |
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Solution |
If you have already contacted support, continue on to the
component-specific MustGather information. Otherwise, click: MustGather:
Read first for all WebSphere Application Server products.
Servlet Engine/Web Container specific MustGather information
The following describes the steps to dynamically trace Servlet Engine/Web
Container errors. You will be dynamically tracing the Application Server
using Application Server Ring Buffer tracing.
Assume the trace string will be the following:
com.ibm.servlet.engine.*=all=enabled |
You can set this trace at the time the problem occurs (WITHOUT RESTARTING
THE APPLICATION SERVER) by using the following steps:
- In the administrative client, select your application server in the
topology tree.
- Go to the Services tab and select Trace Service, and
then Edit properties.
- In Trace Service, click on the "..." next to the Trace
Specification field.
- In the Trace window, enter 200 in the Ring Buffer
Size field. This equates to approximately an additional 40 MB Java
heap usage. Be sure your Application Server mx value is set to accommodate
the additional heap usage.
- Expand components, com, ibm, servlet,
engine (this will change depending on the required tracestring).
- Right-click on engine and select all.
- Click OK.
- In the Trace Service window, specify "Ring Buffer" under the
output file section.
- Click OK in the Trace Service window.
- Click Apply.
- Recreate your problem.
- Go to the Services tab and select Trace Service, and
then Edit properties. In the Trace Service click on the
"..." next to the Trace Specification field. In the Trace
window, enter a fully qualified path and filename into the "dump file
name" field, and click dump.
- Collect the following files:
- Trace file from previous step
- The tracefile
- The stderr and stdout files for the Application Server
- The native.log (plug-in log file from Web server)
- XMLConfig full export
- Follow instructions to send
diagnostic information to IBM support.
For a listing of all technotes, downloads, and educational materials
specific to the Servlet Engine/Web Container component, search the WebSphere
Application Server support site. |
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