But say the last recorded CDP in the month RRA was a day ago, the last_update 
and the last timestamp would be separated by a day using that method.

-----Original Message-----
From: Jesse Becker [mailto:[email protected]] 
Sent: Tuesday, July 27, 2010 12:57 PM
To: Stevens, Weston J
Cc: [email protected]
Subject: Re: [Ganglia-general] Parsing rrdtool dump output using Perl

You could instead use rrdinfo to get the last_update timestamp.  The starting 
timestamp for the "month" RRA can then be computed.  Using the default RRA 
definitions, it should be something like:

   last_updated - 2459520   (=15*244*672)


On Tue, Jul 27, 2010 at 15:32, Stevens, Weston J <[email protected]> 
wrote:
> Say for default Ganglia for example I wanted to grab the first and last 
> timestamps for the month RRA so I can run a bounds check on begin/end time 
> inputs. Ideally I'd like to get all this information by simply specifying the 
> RRD granularity in seconds, without having to also specify the length of the 
> RRD to get the last timestamp in a command line. Using rrdtool dump, what 
> would be a good regex or anything else like Perl XML support that could do 
> this for me? Or a completely different and better way to do it?
>
>
>
> ----------------------------------------------------------------------
> -------- The Palm PDK Hot Apps Program offers developers who use the 
> Plug-In Development Kit to bring their C/C++ apps to Palm for a share 
> of $1 Million in cash or HP Products. Visit us here for more details:
> http://ad.doubleclick.net/clk;226879339;13503038;l?
> http://clk.atdmt.com/CRS/go/247765532/direct/01/
> _______________________________________________
> Ganglia-general mailing list
> [email protected]
> https://lists.sourceforge.net/lists/listinfo/ganglia-general
>



--
Jesse Becker
Every cloud has a silver lining, except for the mushroom-shaped ones, which 
come lined with strontium-90.

------------------------------------------------------------------------------
The Palm PDK Hot Apps Program offers developers who use the
Plug-In Development Kit to bring their C/C++ apps to Palm for a share 
of $1 Million in cash or HP Products. Visit us here for more details:
http://ad.doubleclick.net/clk;226879339;13503038;l?
http://clk.atdmt.com/CRS/go/247765532/direct/01/
_______________________________________________
Ganglia-general mailing list
[email protected]
https://lists.sourceforge.net/lists/listinfo/ganglia-general

Reply via email to