Xymon sample perl worker that puts memory stats into an Influx db
Even though I still like the default xymon rrd graphs, some people don't. Grafana is really good at displaying graphs and can read InfluxDB databases. Xymon's native rrd databases are a time series db, just like InfluxDB.
Grafana has alerting capabilities but is nowhere nearly as powerful as Xymon when it comes to real monitoring. Dashboard-wise, grafana wins hands-down.
Remember, this is just an example. I'll be learning Google's Go language while giving a refresh of Xymon a go (no pun intented).
Xymon has a xymond_channel http://xymon.sourceforge.net/xymon/help/manpages/man8/xymond_channel.8.html interface that hooks into one of xymond's channels (status, data, ..) and puts this out to a worker module. Doesn't sound very complicated and it really isn't. You can write a very simple script that grabs stdin and prints it to stdout:
#!/usr/bin/perl while (<>){ print $_; }
call it maybe print_stdin.pl and use it like so: ./xymond_channel --channel=status ./print_stdin.pl
Apart from some parsing and storing it in a database, that's it.
- Xymon, of course
- influxdb
- perl