The message log

The TM1® Server records status messages about the activity of the server in the tm1server.log file.

These messages contain details on activity such as executed processes, chores, loaded cubes and dimensions, and synchronized replication.

The TM1 Server message logging system is designed to minimize the impact on performance while allowing greater control over the quantity and focus of data produced by logging.

The logging system includes the following components:

Message severity levels - Categories for classifying and reporting messages by severity; DEBUG, INFO, WARN, ERROR, and FATAL.
TM1 loggers - Parameters that provide enhanced control for selectively logging specific areas or sub-components of TM1.
Logging properties file - A text-based file that enables you to configure and enable logging for a specific TM1 server.
Message log viewer - A tool for viewing the message log in Server Explorer and Architect.

Note: Log messages are displayed in English only.

The message log is automatically managed by the TM1 database. By default, the maximum log file size is 100 MB. When the log file grows larger than 100 MB, it is rolled over automatically by the TM1 database. The tm1server.log file is renamed tm1server.log.1, and an empty tm1server.log file is created.

By default, a maximum of 20 TM1 database message log files are maintained by the TM1 database (tm1server.log, tm1server.log.1,...tm1server.log.19). Maximum log file size and maximum number of historical files are based on configuration settings in the tm1s-log.properties file.