Application server logs

The application server logs are the first place that you should look when you encounter an exception or error in a deployed application. Logs can optionally be set to verbose to provide additional information about the running application server.

WebSphere application logs

WebSphere application log files can be found in the logs folder for each profile in the cell; for example, $WAS_HOME/profiles/<profile_name>/logs. There is a folder for each server in the logs directory. This is generally where the JVM stdout and stderr logs (SystemOut.logand SystemErr.log) are stored. However, you can specify alternative locations and names for these files. Depending on the log settings, multiple files can be created.

FFDC logs

FFDC logs provide essential information about a running application server. FFDC logs for individual profiles log all the errors that are encountered during the profile runtime. FFDC logs are in the logs/ffdc directory. The first time an error is encountered during the life of a WebSphere process a set of FFDC files are created, which usually have more detail than the JVM logs.

FFDC log files for individual profiles log all the errors that are encountered during the profile runtime. These files are in the logs/ffdc directory. When you provide information to an IBM Cúram Support representative, create a zip file of the logs folder for all profiles in the cell.

WebLogic logs

WebLogic logs can be found in %WLS_HOME%\user_projects\domains\<domain_name>\servers\<server_name>\logs. The <servername>_redirect.log file is particularly useful. Ensure that the WLS_REDIRECT_LOG environment variable is set to the correct location for the log file. When you provide information to an IBM Cúram Support representative, create a zip file of the logs folder for all servers in the configuration.

Cúram JMX statistics

JMX statistics can be downloaded as a compressed XML file by accessing the URL /Curam/JMXStats.do or /Curam/JMXStats.do?action=download. Provide Cúram JMX statistics to an IBM Cúram Support representative when you are trouble-shooting a performance or performance-related issue.