[collectd] Version 5.0.0.beta0 available

[Florian Forster]

Hi Thorsten,

> On Tue, Dec 07, 2010 at 09:52:52AM -0800, Thorsten von Eicken wrote:
> [version 5.0.0.beta0 available]
> > What is compatible with what?

in general, sending data from a v4 client to a v5 server should be
relatively painless. In many cases, using the "v5upgrade" target should
convert received v4 data to the appropriate v5 layout.

The actual migration path is still a bit a work in progress. I've
recently pushed a migration script which will emit a shell script for
tuning and moving RRD files.

If anyone could test the migration (on a separate server, of course) and
report back what worked and what problems were encountered, this
information would be greatly valued!

> > It gets a bit tricky when considering that you changed a lot of the
> > details how plugins report data (e.g. to 'value' and derive instead
> > of counter), that affects all front-ends that display data.

I'm afraid so, but all in all it got easier: The data source name of an
RRD file with exactly one data source is "value". This is no longer a
rule of thumb, it is now a reality. I will not accept any changes which
don't adhere to this rule and I will try very hard not to forget this ;)

The switch to DERIVE should not affect any front-ends. They read gauge
values from the RRD files or directly let RRDtool create graphs, so they
don't get in contact with the data source type.

Scripts and other custom code may have to be adapted if it reports
counter values greater than 9223372036854775807. In my experience this
is an unusual case.

On Tue, Dec 07, 2010 at 07:33:28PM +0100, Sebastian Harl wrote:
> For a, probably incomplete, list of changes see [1].

I was actually aiming for "complete", so if you find anything missing,
please add it, make a note on the discussion page or send me a message
here.

Best regards,
—octo
-- 
Florian octo Forster
Hacker in training
GnuPG: 0x0C705A15
http://octo.it/
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