[rrd-users] Re: How to replicate rrdtool databases?

Alex van den Bogaerdt alex at ergens.op.het.net
Fri Dec 13 19:44:46 MET 2002

On Fri, Dec 13, 2002 at 06:01:50PM +0100, Markus Schaub wrote:

> My current idea is a patch at the RRD calls in mrtg which
> writes the arguments of the RRDs::update statements to
> a file. This file is then copied onto the presenter and there
> a simple perl script reads the file and executes the RRD:update
> commands to keep the slave copy in sync.

Will probably work.  Of course you have to write a time stamp
with each of the update commands.  Do not use "N" as the current

> Regular transfers of the complete rrd file (one a day) would
> ensure the copies stay in sync.

Shouldn't be necessary.  A check won't hurt but your update
process should be able to update the slave copy just the same
as the master copy is.

> What do you think about this? Will this work or did I
> miss any potential problems or is there an easier solution?

I do recall a discussion on this list about an updater over
the network.  You may want to look at it, perhaps it works
for you?

Much of what looks like rudeness in hacker circles is not intended to give
offence. Rather, it's the product of the direct, cut-through-the-bullshit
communications style that is natural to people who are more concerned about
solving problems than making others feel warm and fuzzy.


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