A server requires certain routine maintenance tasks to be performed regularly in order to acheive maximum performance. In this section, we will checkout some basic maintenance tasks and how to automate them.
Processes on a Linux server at times can go haywire. An Apache server process can hog all CPU resources or a terminated redis server can halt disrupt your caching layer. It helps to have a basic process monitoring system in place.
Monit is a simple program that monitors and manages processes on server and can be configured to make sure that the process stay online and run within preset resource limit.
Monit is availble in repositories of most distributions and can be installed via package manager.
sudo apt-get install monit
Monit configuration is stored in
/etc/monit/monitrc file. Configuring
monit is pretty easy and is well documented on monit’s wiki
Example configuration for monitoring apache server process:
check process apache2 with pidfile /var/run/apache2.pid start program = "/etc/init.d/apache2 start" stop program = "/etc/init.d/apache2 stop"
Read more about it here.