MustGather: Crash on Microsoft Windows
 Technote (FAQ)
 
Problem
MustGather for problems with a WebSphere® Application Server crash on a Microsoft® Windows® platform. Gathering this information before calling IBM® support will help familiarize you with the troubleshooting process and save you time.
 
Cause
 
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.


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 platform:
  1. Collect 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.
    • Default location for Microsoft Windows 2000:

      \Documents and Settings\All Users\Documents\DrWatson

  2. Collect javacore*.txt files located in the JVM working directory.
    • For the Application Server, Nanny and Administrative Server, the following is the default working directory on the Windows platform:

      \Winnt\System32

    • The Application Server working directory is specified in the Administrative Console in AppServer/General tab for V4.0.

  3. Collect the following information:
    • For V6.0 release:
      • All files in the following directory:

        install_root\profiles\profile_name\logs\server_name

      • A copy of server.xml located in the following directory:

        install_root\profiles\profile_name/config/cells/
        cell_name
        /nodes/node_name\servers\server_name

    • For V5.0 and V5.1 releases:
      • Include all of the files from the following directory:

        install_root\logs\server_name

      • A copy of server.xml located in the following directory:

        install_root\config\cells\cell_name\nodes\node_name
        \servers\server_name

    • For V4.0 releases:
      • Include all of the files from the following directory:

        install_root\logs

      • A copy of XMLExport for the server configuration
      • tracefile

    • drwtsn32.log
    • user.dmp
    • All javacore*.txt files
    • Note: For all versions, If you have configured the application server to write logs into a different location, send them accordingly.

  4. Follow instructions to send diagnostic information to IBM support.


Steps to setup Microsoft Windows environment to generate DrWatson log and Userdump files
  1. On the Start menu, click Run.

  2. Enter drwtsn32, and then click OK. (This will bring up the DrWatson screen.)

  3. Type the location to where you want the Dr Watson log to be stored in the field provided for Log File Path.

  4. Type the location and the file name where you want the user.dmp file to be stored in the field provided for Crash Dump.

  5. Make sure that the following options are checked in DrWatson screen:
    • Dump Symbol Table
    • Dump All Thread Contexts
    • Visual Notification
    • Create Crash Dump file
    • For Windows 2003, "Crash Dump Type" option needs to be set to NT4 compatible Full

  6. Click OK.

  7. Click Run on the Start menu.

  8. Enter drwtsn32 -i and click OK. This will enable DrWatson to become the default debugger, and it will generate the DrWatson log and Userdump when an application crashes.

  9. Run the application.

  10. 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 log files.

  11. Follow instructions to send diagnostic information to IBM support.

For a listing of all technotes, downloads, and educational materials specific to the Crash component, search the WebSphere Application Server support site.
 
Related information
Submitting information to IBM support
Steps to getting support
MustGather: Readme first
Troubleshooting guide
 
 
 


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > Crash
Operating system(s): Windows
Software version: 4.0
Software edition:
Reference #: 1053924
IBM Group: Software Group
Modified date: Oct 31, 2005