Sebastian Harl | 28 Dec 23:29 2009
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Re: Bug#543631: rrdupdate does not support floating point values with DERIVE, COUNTER

Hi,

(This is a follow-up to Debian [bug543631].)

On Wed, Aug 26, 2009 at 08:00:22AM +0000, Florian Weimer wrote:
> Floating point values are supported with GAUGE.  This suprising
> behavior is not clearly documented, as far as I can tell.  I don't
> think there are architectural reasons for this behavior.

[side note: "this surprising behavior" refers to the subject of the
E-mail, i.e. "rrdupdate does not support floating point values with
DERIVE, COUNTER" ;-)]

I'm not entirely sure about any reasons for that either. COUNTER and
DERIVE values are stored as a rate (i.e., a double) as well anyway. To
be able to calculate the rate, the last value is stored as well. This is
done using a string, though, so it does not impose any limitations
either.

With this E-mail, I'm forwarding the issue upstream, hoping for an
explanation (or request for patches ;-)).

Cheers,
Sebastian

[bug543631] http://bugs.debian.org/543631

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(Continue reading)

Nisha Sasindran | 16 Dec 13:07 2009
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RRDTool with Java API

Hi All,
 
Is there any means of using Java API to fetch data from the rrd's created by RRDTool?
Let me explain in detail. The RRDTool is installed and generating rrd files in a unix system and i have been using perl and cgi programming to read the rrd files. But now i would like to use pure Java API to read those rrd's and collect data. Is this possible?
 
I would be really grateful if anyone can anyone guide me on this.
 
Thanks & Regards,
Nisha
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