IBM WebSphere Application Server Performance Cookbook

WAS traditional verbosegc from Startup Recipe

  1. WAS Administrative Console } Servers } Server Types } Websphere application servers } $SERVER } Server Infrastructure } Java and Process Management } Process definition } Java Virtual Machine
  2. Add a space to the end of Generic JVM arguments and append the following: 
    -Xverbosegclog:${SERVER_LOG_ROOT}/verbosegc.%seq.log,20,50000
  3. Click OK
  4. Save configuration changes
  5. Synchronize nodes
  6. Restart the JVM
  7. Reproduce the problem
  8. Upload the following files:
    1. $WAS/profiles/$PROFILE/logs/$SERVER/verbosegc*.log
    2. $WAS/profiles/$PROFILE/logs/$SERVER/System*.log
    3. $WAS/profiles/$PROFILE/logs/$SERVER/native*.log
    4. $WAS/profiles/$PROFILE/logs/ffdc/*