How can I change where the MDCE service stores its logfiles and worker data?

I'd like to change where the MDCE service stores its logfiles and worker data.

Answer 1

[MathWorks Support Team]

You can change these locations by editing the $MATLAB/toolbox/parallel/bin/mjs_def.sh (Linux) or mjs_def.bat file (Windows).

(where $MATLAB is the MATLAB installation directory)

1.) Open the file in a text editor and locate the CHECKPOINTBASE and LOGBASE variables.

2.) Set them to the location you would like. Ensure that the user starting the MDCE service has full access to these directories.

• NOTE: Starting in R2019a the following name changes occurred:
• MATLAB Distributed Computing Server was renamed to MATLAB Parallel Server
• mdce_def was renamed to mjs_def
• mdce binary was renamed to mjs
• mjs_def.bat file is in $MATLAB/R20XXx/toolbox/distcomp/bin for R2019a and earlier.

[Daniel Lyddy]

This approach just doesn't work for most end users on a networked/shared system. As German points out in this post, most end users just don't have write access to system/root level files like $MATLAB/toolbox/distcomp/bin/mdce_def.sh on a Linux system. As German also points out, changing that file changes the settings for all users.

There needs to be a way to change this location on a per-user, per-job basis.

Please 'un-accept' this answer, or answer German's question.