Default Logging Configuration

A broker is automatically configured to save log output to a set of rolling log files. The log files are located in a directory identified by the instance name of the associated broker (see Appendix A, Distribution-Specific Locations of Message Queue Data):

   …/instances/instanceName/log

For a broker whose life cycle is controlled by the Application Server, the log files are located in a subdirectory of the domain directory for the domain for which the broker was started:

   …/appServerDomainDir/imq/instances/imqbroker/log

The log files are simple text files. The system maintains nine backup files named as follows, from earliest to latest:

   log.txt
   log_1.txt
   log_2.txt
      …
   log_9.txt

By default, the log files are rolled over once a week. You can change this rollover interval, or the location or names of the log files, by setting appropriate configuration properties:

• To change the directory in which the log files are kept, set the property imq.log.file.dirpath to the desired path.

• To change the root name of the log files from log to something else, set the imq.log.file.filename property.

• To change the frequency with which the log files are rolled over, set the property imq.log.file.rolloversecs.

See Table 17–11 for further information on these properties.