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Problem(Abstract) |
MustGather for problems with a IBM® WebSphere® Application
Server crash on a Microsoft® Windows® system. Gathering this information
before calling IBM® support will help familiarize you with the
troubleshooting process and save you time. |
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Resolving the
problem |
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.
Crash on Microsoft Windows specific MustGather information
The following steps outline where to collect information and begin
troubleshooting a Java™ virtual machine (JVM) crash on a Windows system:
- Collect the Drwtson32.log and user.dmp files. To
determine what the Log File Path (location of
Drwtsn32.log) and Crash Dump (location of
user.dmp) paths are set to, run drwtsn32 from a command
line and review the Log File Path field.
- Run the following command against the user.dmp file:
On V6.1: |
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jextract [DUMP_PATH]
user.sdff |
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On V5.0, V5.1, and V6.0: |
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jextract -o user.sdff
[DUMP_PATH] |
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Where,
jextract |
is found in the install_root/java/jre/bin directory |
user.sdff |
is the output file |
DUMP_PATH |
is the path and file name for the user.dmp |
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- Collect the following information:
- For all releases:
- drwtsn32.log
- user.dmp
- All javacore*.txt files
- user.sdff
Note: For all versions, if you have configured the Application
Server to write logs into a different location, send them
accordingly. |
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- For V6.0 and V6.1 release:
- All files in the following directory:
install_root\profiles\profile_name\logs\server_name |
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- A copy of the server.xml file, which is located
in the following directory:
install_root\profiles\profile_name\config\cells\
cell_name\nodes\node_name\servers\server_name |
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- For V5.0 and V5.1 releases:
- Include all of the files from the following directory:
install_root\logs\server_name |
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- A copy of the server.xml file, which is located
in the following directory:
install_root\config\cells\cell_name\nodes\node_name
\servers\server_name |
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- Follow instructions to send
diagnostic information to IBM Support.
Steps to setup Microsoft Windows environment to generate Drwtson32.log
and user.dmp files
- On the Start menu, click Run.
- Type drwtsn32, and then click OK. This will bring up the
Dr. Watson for Windows.
- Type the location to where you want the Drwtson32.log file to
be stored in the Log File Path field.
- Type the location and the file name where you want the
user.dmp file to be stored in the Crash Dump field.
- Make sure that the following options are selected in the Dr. Watson
window:
- Dump Symbol Table
- Dump All Thread Contexts
- Visual Notification
- Create Crash Dump file
- For Windows 2003, the Crash Dump Type needs to be
set to NT4 compatible Full.
- Click OK.
- Click Run on the Start menu.
- Enter drwtsn32 -i and click OK. This will enable Dr.
Watson to become the default debugger, and it will generate the
Drwtson32.log and user.dmp files when an application
crashes.
- Run the application.
- If the preceding steps do not result in the creation of a
Drwtsn32.log file or a user.dmp file, follow the
instructions in Java
process exits without leaving a footprint in WebSphere Application Server
log files.
- Follow instructions to send
diagnostic information to IBM Support.
For a listing of all technotes, downloads, and educational materials
specific to Crash, search the WebSphere
Application Server support site. |
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Cross Reference information |
Segment |
Product |
Component |
Platform |
Version |
Edition |
Application Servers |
WebSphere Application Server - Express |
Hangs/performance degradation |
Windows |
6.0, 5.1, 5.0 |
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Application Servers |
Runtimes for Java Technology |
Java SDK |
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