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mikaku / Monitorix

Monitorix is a free, open source, lightweight system monitoring tool.
https://www.monitorix.org
GNU General Public License v2.0
1.12k stars 167 forks source link

What is the performance hit by installing monitorix ? #75

Closed changwuf31 closed 9 years ago

changwuf31 commented 9 years ago

Hi, monitorix looks lightweight and simple.

Anyway, I wonder how much of a performance hit if say I use it to monitor mysql instance ?

How are the metrics sent, if I'm using to monitor around 20 servers ? I mean, is monitorix using a distributed system (client actively send metrics and data to the server ?) or is it centralized (server is the one who actively request data from client ?)

And what if I'm adding and removing server, will the main server recognize the new server and the deleted server ?

mikaku commented 9 years ago

Hi changwuf31,

Anyway, I wonder how much of a performance hit if say I use it to monitor mysql instance ?

Monitorix connects to a MySQL server on every minute and it just issue the commands show global status and show variables. I haven't experienced any performance degradation on none of my servers.

How are the metrics sent, if I'm using to monitor around 20 servers ?

If you are using the Multihost feature you need to install Monitorix on every server, and currently, it's your local browser who connects to each remote server to get the graphs. This is not the best approach and will change in the future to centralize in one server the graph collecting.

Please, read http://www.monitorix.org/faq.html#Q112 to know more about the Multihost feature.

Thanks.

changwuf31 commented 9 years ago

@mikaku Thanks for the detailed explanation :+1: