[Ovirt-devel] Re: [PATCH] oVirt / RRD Test Data
mark wagner
mwagner at redhat.com
Wed Aug 6 03:55:22 UTC 2008
Mohammed Morsi wrote:
> Attached is my now functional ruby script to generate test / demo rrd
> data and the oVirt patch required to get it working (a few small code
> tweaks / fixes and a few fixture modifications).
>
> 1. To generate the data data simply run `ruby demo-rrd-data.rb`. There
> are a few variables at the top of the script which you can tweak to
> configure things like nodes generated, cpu's per node, interval in
> seconds between data points, etc.
> 2. To see the test data, you need to be running rails in the testing
> environment and have a populated ovirt_test db. This can be accomplished
> by running the tests once (eg 'rake test')
> 3. Alot of data needs to be generated, thus the script is slow (at least
> on my system), and it isn't yet set to generate the number of data
> points in a time period that collectd does / oVirt is expecting (change
> the $interval variable at the top of the script from 60 to 10 to do
> this, but this will be all the more slower). Since the graphs require
> more data points than it is currently getting, they appear a bit
> discrete. Perhaps we can correct this and run it on a faster machine and
> just send out and use the data set generated. Alternatively, I could
> disable some of the algorithms used to generated data and simply reuse
> data points for some of the graphs if series repetition is not a problem.
>
> -Mo
>
Mo
Looks like the script ran for a while. It generated the device dirs but
it did not generate the .rrd files. So I have
/var/lib/collectd/rrd-test/node0/cpu-0 but it is an empty directory.
Debugging now...
-mark
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