[rrd-users] Architecture independence for rrd files

Simon Hobson linux at thehobsons.co.uk
Wed Jan 23 16:48:23 CET 2013

Jean-Yves Avenard wrote:
>> Have you looked at using rrdcached ?

>I did..
>I quickly stopped looking further when it came to manage the
>connectivity between the server and the boxes gathering the data.
>The idea of setting up VPN and secured robust link on what is going to
>be an unreliable connection (well, reliable enough so I could do
>things like a quick rsync). The remote boxes are typically connected
>via ADSL with a dynamic IP...

Yeah, that could be a bit of a problem.

>How does rrdcache deal with issue like the server suddenly not being
>there. Is the data temporarily stored and passed on the server when it
>is once again available?

At the moment it fails. IIRC there was some talk about making it possible to use two daemons - so your local RRD tool updates a local cache, and that then updates a remote cache - presumably (if done right) buffering the data if the link is down.

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