Hi,
I have a custom graph definition that takes data (iops) from several RRD files (one file per disk).
Because those disks belong to a RAID array, I'd like to STACK their iops values on a single graph. To get an overview of iops over that RAID array.
I've tried using a single "STACK:rps at RRDIDX@" directive but I got the following error: "STACK must follow LINE or AREA! command:"
So I used "LINE:rps at RRDIDX@#5C7CDA STACK:rps at RRDIDX@#5C7CDA:Read/sec" but this doesn't really stacks every disks value on top of each others.
I there a way to tell the graph definition to "stack on previous @RRDFN@" or some way to do the sum calculation on a set of @RRDFN@ at once (like CDEF:sum=rps at RRDIDX@,sum,+)? Or do I have to write a static graph definition using the X disk I want to sum up ?
TIA, Jo
On Wed, 2012-08-08 at 11:09 +0200, Joel Carnat wrote:
"STACK must follow LINE or AREA! command:"
So I used "LINE:rps at RRDIDX@#5C7CDA STACK:rps at RRDIDX@#5C7CDA:Read/sec"
Hello,
I think you'll find that what it means is:
LINE:rps at RRDIDX@#5C7CDA STACK:rps at RRDIDX@#5C7CDA:Read/sec
not that STACK must appear after LINE or AREA commands on the same line.
John.
-- John Horne Tel: +44 (0)1752 587287 Plymouth University, UK Fax: +44 (0)1752 587001
Le 8 août 2012 à 11:49, John Horne a écrit :
On Wed, 2012-08-08 at 11:09 +0200, Joel Carnat wrote:
"STACK must follow LINE or AREA! command:"
So I used "LINE:rps at RRDIDX@#5C7CDA STACK:rps at RRDIDX@#5C7CDA:Read/sec"
Hello,
I think you'll find that what it means is:
LINE:rps at RRDIDX@#5C7CDA STACK:rps at RRDIDX@#5C7CDA:Read/sec
not that STACK must appear after LINE or AREA commands on the same line.
Hum... maybe I was not clear in what I did.
At first, I only had the "STACK" line and got the "STACK must follow LINE or AREA" error. So I inserted a "LINE" line before the "STACK". Then the error disappeared. But I did not use a single line for "LINE" and "STACK" in my graph definition. I have one definition per line ; as you wrote it. My mail was wrongly formatted.
In that last case, what doesn't suit my needs is that I get a graph with a bunch of LINE/STACK/LINE/STACK/LINE/STACK when what I'd like is a AREA/STACK/STACK/STACK/STACK.
Regards, Jo
On Wed, 2012-08-08 at 12:25 +0200, Joel Carnat wrote:
In that last case, what doesn't suit my needs is that I get a graph with a bunch of LINE/STACK/LINE/STACK/LINE/STACK when what I'd like is a AREA/STACK/STACK/STACK/STACK.
Does
AREA:rps at RRDIDX@#5C7CDA:Read/sec:STACK
do what you want?
John.
-- John Horne Tel: +44 (0)1752 587287 Plymouth University, UK Fax: +44 (0)1752 587001
Le 8 août 2012 à 13:02, John Horne a écrit :
On Wed, 2012-08-08 at 12:25 +0200, Joel Carnat wrote:
In that last case, what doesn't suit my needs is that I get a graph with a bunch of LINE/STACK/LINE/STACK/LINE/STACK when what I'd like is a AREA/STACK/STACK/STACK/STACK.
Does
AREA:rps at RRDIDX@#5C7CDA:Read/sec:STACK
do what you want?
YES! Thanks a lot.
Jo.
participants (2)
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joel＠carnat.net
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john.horne＠plymouth.ac.uk