Application process monitoring under Linux

Two ideas:

First, execute the monitoring script regularly

　　 Use the crontab that comes with centos to execute the status.sh script regularly as needed.

　　#!/bin/bash

　　status=$(ps -aux | grep “rsync –daemon” | grep -v “grep” | wc -l)

　　if [ $status -eq 0 ];then em>

　　　　systemctl restart rsyncd.service
　　else
　　　　exit 0;
　　fi

Second, the way of background execution

　　sh status.sh &

　　#!/bin/bash

　　while true

　　do

　　　　ps -aux | grep “rsync –daemon” | grep -v “grep” | wc -l
　　　　if [$? -ne 0 ]; then
　　　　　　systemctl restart rsyncd.service
　　　　fi
　　　　sleep 10
　　done

The current general idea is these two Kind, if you have other ideas, please leave a message to discuss!