Is it possible to append entries to a license manager log file rather than overwrite them?

Every time I restart the license manager, the logfile gets overwritten with new information. Is there any way to add entries to a logfile rather than overwrite them?

Answer 1

[MathWorks Support Team]

You can set up the network license manager so that the vendor daemon log file is persistent. To create such a log, you will need to add the DEBUGLOG + feature to your options file:

DEBUGLOG +<path to log file>
e.g. DEBUGLOG +"C:\Program Files\MATLAB\R2023a\etc\mlmlog.txt"

When specifying a log file, DO NOT specify the license manager log file (lmlog.txt or lm_TMW.log) that is used in lmtools, as this will result in data loss. The log file can be in any directory.

Once the Options File has been updated, you must restart the license manager in order for these changes to take effect. Again, this log file will be just for the MATLAB vendor daemon. Any information from lmgrd will be recorded in the main log file.

NOTE: If using "lmstart" to start the license manager on Linux/Mac, the log file does not get overwritten.  Entries to the log file are appended to the existing log file.

To learn how to create an options file, please consult the article below:

Is there a way to administer licenses from the Network License Manager? How do I create an Options file?