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Error Logs

RapidMiner Server maintains three types of logs that track activity. You can refer to these logs if the platform, a process or a job agent encounters an error:

  • RapidMiner Server logs record activity related to platform operations. This includes startup processes, changes to settings, database accesses, etc. Any operations error is written to the RapidMiner Server log file.
  • Process execution logs record the status of process execution.
  • Job Agent logs record the status of Job Agents.

Viewing RapidMiner Server logs

RapidMiner Server stores its operational log files in the /log subfolder of your RapidMiner Server home directory. You can open the files with a text editor or view them using the web interface.

Viewing log files with a text editor

Using any text editor, open the file for the day you are interested in. The file for the current day is called server.log. File names for previous days are in the format server.log. <date>.

Each line of the file is preceded with a time stamp to help locate the relevant information.

Viewing log files in the web interface

To view log files from the web interface:

  1. Click on Administration > System Information to open the System Information window.

  2. Select the Server logs tab.

  3. The file for the current day, server.log, is preselected. To see previous logs, select the date you are interested in from the pull-down menu:

Viewing process execution logs

A process execution log file is available for each process execution on RapidMiner Server. You can view all process execution logs in the web interface of RapidMiner Server. The logs include both successful and failed processes.

Viewing process execution logs from the web interface

You can view process execution logs from the web interface of RapidMiner Server. To do so, open Processes > Executions. All processes that are either scheduled for execution or already executed on the RapidMiner Server instance are listed:

The listing provides an Actions column which has a View details button which will open up a new tab in your browser with the details of your process execution. On the top you can see general information about the process execution, on the bottom you can find the logs of the process.

If you had an error while running the process you will get an Error section on the Process Execution Details page:

Viewing process execution logs from RapidMiner Studio

In RapidMiner Studio, use View > Show Panel > Server Monitor to open the list of servers panel. From there you can open up the web interface by clicking the Show Execution in Browser button or by right clicking the server and clicking Show Execution in Browser.

Viewing Job Container logs

You can view the logs of a Job Container from the Job Agent folder under jobs/<job-id>/execution.log.