Installing Tcollector

The following tutorial will guide you to install and use Tcollector.

Tcollector is a child project of OpenTSDB.

Opentsdb will start saving some points, we have to use tcollector (plugin) to store some useful information about system components like ram and disk space

git clone git://github.com/OpenTSDB/tcollector.git

Now go in this tcollector folder and edit 'startstop' and change this variable

TSD_HOST=something something

after changing it should look like

TSD_HOST=127.0.0.1

here 127.0.0.1 is the DNS name of my server

Start the tcollector

sh startstop start

To stop the tcollector

sh startstop stop

Now to query it through restful api these are some of the useful links

http://www.euphoriaaudio.com/opentsdb/querying_examples.html

http://www.euphoriaaudio.com/opentsdb/http-api-q.html

Run this in the browser

http://localhost:4242/api/query?start=1h-ago&m=sum:rate:proc.stat.cpu

you should see a json format returned as a result.

cheers