Diagnosing IBM Websphere Service logs
The IBM service log
The IBM service log, referred to as the service log, is a binary file. It contains information written to System.out by the Application Server run time as well as special messages that contain extended service information. This extended service information has been useful to IBM WebSphere Service teams in solving complex problems. IBM has now created additional tools to decipher these binary service logs, such as the Log Analyzer in Application Server. However, it is best to solve as many problems as possible during the development phase, before deploying to a production Application Server environment.
The service logs (activity.log) are normally located at $WAS_HOME/Profiles/dmgr/logs & $WAS_HOME/Profile/Node/Logs
[was61@Profile01]$ du -a | grep activity.log
Using showlog to see contents of Service log (activity.log)
You can find the showlog tool inside the WebSphere/AppServer/bin folder. If you execute it without arguments it will print out help for that tool
[was61@Profile01]$ /opt/IBM/WebSphere/AppServer/bin/showlog ./dmgr/logs/activity.log | more
$LANG = en_GB
$CODESET = UTF-8
ComponentId: Application Server
Version: Platform 6.1 [ND 22.214.171.124 cf311015.02]
TimeStamp: 2011-08-14 07:06:54.943000000
PrimaryMessage: ADMN0015I: The administration service is initialized.