Monitor general system resources on localhost such as overall CPU usage, Memory and Network. The Python script will sent out an Slack notification. You can also check resources used by a process and perform actions if values goes outside specific bounds. I have setup Monit to monitor memory usage by a process, the check will exec a Python script when the threshold is breached.

It's able to find processes by it's command line substring, select long running ones and treat them well. M/Monit is particularly useful for monitoring background or daemon processes, such as those started at system boot time. More home server specific Monit examples to follow, so keep checking back. As you can see Monit allows for automatic server monitoring, which can be a big help for system administrators. and this rule for a process: check process myprocess matching '.' restart program '.' I would like that if system memory is more than 90 to restart the process myprocess. That is it for SABnzbdplus monitoring with Monit. So I found and modified this ps/grep/perl/xargs oneliner which I run through cron. Monitor Sabnzbd Process Status With Monit. The only problem is that the monit is not right tool for this job anyway, since it want the process matching the check pattern to be found everytime it perform the checking, otherwise it tries to start the process using start part of check definition (which is not exactly what we want to do). # this will find long-running surefire process and kill it start program '/etc/init.d/nginx start' stop program '/etc/init.

process check and Monits procmatch could miss some processes. If uptime > 4 hours then exec '/usr/bin/monit-kill-process.sh'Īnd the /usr/bin/monit-kill-process.sh should look like #!/bin/bash For example, you could set up a script to send you Slack notifications, store it as /usr/local/bin/slack-webhook.sh, and run it whenever nginx changes PID or is restarted by Monit: check process nginx with pidfile /var/run/nginx.pid. Example: check process foobar matching myprocess if disk read activity. Munin generates nifty little graphs about almost every aspect of your server (load average, memory usage, CPU usage, MySQL throughput, network traffic, etc. There is MONIT_PROCESS_PID environment variable propagated into context of program executed by exec command. In this article, I describe how you can monitor your Debian 10 (Buster) server with Munin and Monit.

Monit check process matching example