FusionAuth stops randomly, but nothing in the log

[dan]

I use fusionauth on CentOS as an operating system service. Lately I often find that the service is up and running for a day or two, then randomly, it stops working.

The problem is that I can't find anything in the log so I don't understand what's going on.

Do you have any suggestions for identifying the problem?

Originally posted here: https://github.com/FusionAuth/fusionauth-issues/issues/1048

[dan]

You could take a look at the system log. If the OOM killer ended a process due to memory constraints it will be logged there.

You might see lines like:

Dec 30 12:00:38 vps kernel: Out of memory: Kill process 30047 (java) score 98 or sacrifice child

The OOM killer will begin killing services once the kernel runs out of memory. The solution will be to allocate less memory to FusionAuth or to increase the amount of RAM available to the host OS. You can do the former with the fusionauth-app.memory setting. See the configuration reference for more details.