Here are list of some of the server monitoring tools
Created by SoundCloud.com. It is written in GoLang. Very easy to install and setup. It work with Grafana to show very good graphs.
I have 2 installation of this. I don’t setup alerts yet.
Zabbix is written in PHP. I have tested this, configuration is more complex than Prometheus.
You can download it from
NetData is written in C. You can see source code at https://github.com/firehol/netdata.
This looks very good. Many demo available on their site