Hi Erik.
On Wed, Nov 08, 2006 at 08:35:23AM +0100, Erik wrote:
> I've got some 8000+ rrdfiles in a dir and i am trying to create a graph containing the sum from a selecton of about 1700 rrdfiles.
> The first problem i ran into is the ARG_MAX limit, by renaming variables i've gotten around that.
> The problem now is that RRDtool segfaults, is there any other way to create an aggregate graph for my files?
Depending on your RRD-Files you should watch your memory.
Generating graphs from many files may result in a rrdtool
process consuming large amount of memory.
So make sure you have enough memory.
(and watch your syslog files for out-of-memory
conditions).

By the way, which versions are we talking about?
Which version of rrdtool? 1.2.15?
And which OS? I assume Linux. And which platform? x86? x86_64? ia64?
something else?

If it is really a bug in rrdtool, it would be nice
if you load the generated core file (you may set the
limits for corefiles from 0 to unlimited, e.g.
ulimit -c unlimited) and in gdb an run bt and bt full
This will help the developers to debug the problem.


> *** glibc detected *** free(): invalid pointer: 0x080ef008 ***
Hmmm ... Never seen this with a recent version of rrdtool on my
systems. You can suppress this warning by setting the environment
variable MALLOC_CHECK_=1.

HTH,

Andreas.

-- 
Dipl.-Ing. Andreas Maus             science+computing ag
System Administration               Hagellocher Weg 73
mail: a.maus@science-computing.de   72070 Tuebingen, Germany
tel.: +49 7071 9457 456             www.science-computing.de

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