Kill single Job on MPS

Is it possible to get a queue of jobs in Matlab Production Server and kill certain jobs (with command line setup)? I cannot find anything to it in the documentation. I don't mean to use mps-stop or mps-restart, which is of course possible. Background: I accidently ran a script which called uigetfile and the job gets stuck forever and I am not able to stop the service without --kill -f flags. I would prefer to be able to see which job is currenlty running so long and causing the issue and stop it..

Answer 1

[Samayochita]

Hi Jannes Klee,

I understand that you wish to identify and terminate a specific running job on MATLAB Production Server (MPS) without stopping or restarting the entire server. Specifically, you are looking for a way to kill a stuck or problematic job (e.g., a job waiting for user input like uigetfile) using command-line tools, rather than using mps-stop or --kill -f.

In MATLAB Production Server (MPS), managing individual jobs directly (such as listing, inspecting, or killing a specific job) is not supported via the command line or built-in APIs).

• MPS is stateless by design which means that each client request is handled independently by worker processes that are spawned, used, and recycled as needed.
• You cannot get a queue of jobs or kill a specific job via a CLI.
• The only way to stop a problematic job is indirectly by restarting the server (mps-stop / mps-restart), or using --kill -f if it is hung.

One possible workaround to abort long-running or stuck requests is by setting a global request timeout in main_config as follows:

--request-timeout=60

This acts on all requests/jobs rather than on a single request. This setting will automatically kill any request that runs longer than 60 seconds.

For more information please refer to the following documentation links:

mps-stop and –kill: https://www.mathworks.com/help/mps/server/mpsstop.html

request-timeout property: https://www.mathworks.com/help/mps/server/mps.configuration-properties.html#bve31j2

Hope this is helpful!