mjhjmtu

How can I monitor load average CPU other servers via monit tools?

this example shows the only localhost.

 check System my_server
 if loadavg (1min) > 4 then alert
 if loadavg (5min) > 2 then alert
 if memory usage > 12% then alert
 if swap usage > 25% then alert
 if cpu usage (user) > 80% then alert
 if cpu usage (system) > 30% then alert
 if cpu usage (wait) > 20% then alert

You cannot configure a particular monit directly with rules for other servers as your example.

The monit daemon configuration only pertains to the particular server where it is installed; e.g. monit by itself is only the (remote) agent running on the server/VM.

However, you can:

• use M/Monit for talking with and collecting monit data from a central server over the network;


• configure monit for accessing each monit instance individually via a browser;


• use monit as an agent for Nagios.

As for M/monit, it is also made by the guys that wrote monit, but is paid. It is an interesting lightweight monitoring solution for a small infra-structure, and has general hosts monitoring, analytics, and the interface also works well in mobile devices.

See M/Monit screenshots

For M/Monit to talk with monit, you have to activate the web interface, in each monit instance. Activating the web interface aside from giving a web interface, also allows access to a REST API giving XML statistics that can be accessed remotely.

To activate the web interface either for M/Monit, or for being able to browse remotely the monitoring data:

set httpd port 2812 
allow 0.0.0.0/0.0.0.0 # allow localhost to connect to the server 
allow admin:monit

See also Install and Configure Monit web interface

After configuring a monit web interface, you can also use a browser and point directly to the particular server/VM.

Nevertheless, for monitoring several server, I prefer using Nagios or Zabbix.

While there are Nagios plug-ins for monit, I prefer using the native agent, nrpe.

There is also a python library to talk remotely with monit via the web interface, which my allow you to script your way for monitoring a couple of servers, I have not explored that avenue. https://github.com/polymeris/python-monit

Example of monit web interface: