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How to supervise a process and schedule a periodic restart?

rated 0 times [ 0] [ 0] / answers: 1 / hits: 4038 / 3 Years ago, wed, july 28, 2021, 10:22:44

I run a process that sometime crash and sometime freeze. I used supervise to have it automatically restart when it crash. However, if it freeze, it stay frozen until I am back in front of the computer. I would like a tool that would restart it when it crash, but can also be configure to do periodic kill and restart, so if it freeze, it won't stay frozen more that a given period of time.

Which tool would who suggest?

Thanks

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umplegitimat

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Location: Saint Pierre and Miquelon

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3 Years ago

answered 3 Years ago edgehogight · Accepted Answer

I tried using supervise from daemontools with a crontab :

First, I start with

supervise /fullpath

and I use this crontab :

0 23 * * * svc -d /fullpath

2 23 * * * svc -k /fullpath

5 23 * * * svc -u /fullpath

Where fullpath is the directory containing the file called run which start my process. The tricky part is the file called should end with :

exec java ...

Normally, I start the application with a script, but if I put that script in the file called run, when svc is executed, it send the signal to the script and the java process continue to run. I created a copy of the script and modified it to make it output the call to java with all parameter, and copied this in the file called run.