Netdata seems pretty cool!
I’ve just tried the installation on my clean NS 7:
yum install http://dl.marmotte.net/rpms/redhat/el7/x86_64/netdata-1.0.0-2.el7/netdata-1.0.0-2.el7.x86_64.rpm
yum install jq
db fwservices set netdata fwservice Ports 19999 Protcol tcpudp
db fwrules set 444 rule Action accept Dst fw Log none Position 64 Service fwservice;monit Src any status enabled
systemctl start netdata
signal-event firewall-adjust
(Note: pay attention to firewall rules, do not overwrite existing ones 
)