collectd-pm2

collectd-pm2 using collectd to gather statistics of Node.js applications managed by PM2.

Supported metrics

Memory used

CPU used

Loop delay

Restart times

Unstable restarts

PM2 run with non-root user

Configuration collectd

cp collectd-pm2.js /usr/local/bin

Assume you start pm2 daemon with user "pm2" group "pm2", edit your collectd.conf file:

 LoadPlugin exec

 <Plugin exec>
     Exec "pm2:pm2" "node" "/usr/local/bin/collectd-pm2.js"
 </Plugin>

PM2 run with root user

Because collectd exec plugin disallow executed with "root" user, see man 5 collectd-exec

CAVEATS
    ·   The user, the binary is executed as, may not have root privileges, i. e.  must have an UID that is non-zero. This is for your own good.

There is a optional program to bypass it.

Build and install

make
make install

Configuration collectd

 LoadPlugin exec

 <Plugin exec>
     Exec "nobody:nobody" "/usr/local/bin/collectd-pm2-root"
 </Plugin>