[rrd-users] Bug in rrdtool?
jyavenard at gmail.com
Fri Jan 1 07:14:46 CET 2010
2010/1/1 Benny Baumann <BenBE at geshi.org>:
> Which version of RRDTool on what platform using which OS were you using?
I tried RRDtool 1.4.2 and 1.3.9.
That was on a Ubuntu 9.10 / 64 bits Linux (2.6.31)
> ow was the interfacing with RRDTool (I'd guess Command Line client from
> the source below)?
> Is the error reproduceable? If so, to what extend? Could you provide the
> offending RRD Database or does it happen with every file of a given format?
Yes, I can reproduce it every time ...
It was created with:
rrdtool create solarprod.rrd -s 60 \
> Could you check with a debugger to get some more specific information
> about the issue?
I've now completely changed the way I was doing it ; because I
couldn't bypass that problem otherwise.
So what I now do instead of getting rrdtool to graph ; is calling in
my php script rrdtool fetch on all the period I'm interested ; then I
do the calculation myself and add the string in the graph.
> hmmm, usuaklly notihing to worry about ...
I would have thought so :)
> Hmmm, maybe you might want to try the direct PHP bindings for PHP for
> faster interfacing with RRDTool without needing process execution for
> PHP to be enabled (improving security).
I had trouble compiling the PHP module on FreeBSD ; so I found it
easier and more portable to exec on the rrdtool binary.
> Could you provide the full command line that is being executed when the
> problem appears?
I don't have it anymore ... The PHP code there generate the command line.
> Please try
I had tried that already ; it made no difference.
I also tried splitting the calculation in two CDEFs then add those
CDEF together ; I got the same error.
> Plese provide a small testcase script+rrd file that gives this error.
> Instead of the rrdfile you could also provide a create statement for
> such a file.
I'll try again a bit later ; I'm more interest in fixing the '??'
error in the graph right now (see other thread) , because for that one
I have no work around...
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