rrdtool Documentation

RRDTOOL

We use rrdtool to generate some graphs. The data is currently being written to monitor.log from moitor.pyand contains information on bandwidth usage and usercount.

Links

An understandable guide to rrdtool: https://calomel.org/rrdtool.html My question on ServerFault, good answer: See: http://serverfault.com/a/662196/148056

Setup

Read from logfile

I was collecting data to monitor.log for 6 months before i started using rrdtool. Here is how I imported it to a RRD database.

1. Create database with

   $ rrdtool create monitor_db.rrd \           
       --step 900 \     
       --start 1404249670 \
       DS:bandwidth:GAUGE:3600:0:1000 \
       DS:usercount:GAUGE:8000:0:1000 \
       RRA:MAX:0.5:1:140160
   $
   

2. Import with monitorparser.py tool

    $ python monitorparser.py
    preprocessing
    done, count: 3222
    rrdtool...
    done.
    $
   
   

3. Generate some grapsh with grap.sh.