This means that rrdtool is actually not working, if you read the error
printed by rrdtool. Also it seems it is still using /usr/bin/rrdtool
instead of you alternate path in usr/local. Check your config again.
rrdtool complains about not having permission to load it's library..
Maybe a wild idea is to check the permissions on that file it prints??
(the error message already suggests this!)
Also the undefined function means that you do not have GD and/or the
php-gd module installed.
- Ramon.
toney samuel wrote:
Hi Ben,
I have tried as per your advise and rrdtool is working properly. I
checked the apache log also and i found this error
[client 127.0.0.1 <http://127.0.0.1>] PHP Fatal error: Call to
undefined function: imagecreate() in /var/www/html/ganglia/pie.php on
line 121, referer: http://localhost/ganglia/
/usr/bin/rrdtool: error while loading shared libraries: librrd.so.2:
failed to map segment from shared object: Permission denied
pls guide me to resolve this problem
Regards
On 7/17/06, *Ben Hartshorne* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:
Toney,
Have you verified that rrdtool itself works? It may not be a problem
with ganglia you're looking at but a problem with rrdtool itself.
I'm not sure what might show up in the apache logs, but that may be a
good place to look as well.
You should be able to find your rrd databases for ganglia on the node
running gmetad (which may be all the nodes). My installation puts them
in /var/lib/ganglia/rrds, but I'm not sure if that's the default
location.
Assuming they are there...
bash$ cd /var/lib/ganglia/rrds/__SummaryInfo__/
bash$ rrdtool graph /tmp/foo.png --end now --start end-120000s \
> --width 400 DEF:myline=cpu_nice.rrd:sum:AVERAGE \
> LINE1:myline#0000FF:"foo\n"
bash$ file /tmp/foo.png
/tmp/foo.png: GIF image data, version 87a, 480 x 155
bash$ xv /tmp/foo.png #or some other way of viewing it
If foo.png is a real graph, then you have verified that rrdtool is
working correctly. If you cannot get rrdtool to create a graph for you,
you should investigate why it is not working correctly before continuing
to troubleshoot ganglia.
-ben
On Mon, Jul 17, 2006 at 12:13:25PM +0530, toney samuel wrote:
> Hi, i have specified the path as per your instruction but still i
am not
> getting and graph in the web page.
>
> On 7/15/06, matt massie <[EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
> wrote:
> >
> >toney samuel wrote:
> >> Hi i have installed as per the instructions on this link
> >>
> >> http://www.ibm.com/collaboration/wiki/display/WikiPtype/ ganglia
> >>
<http://www.ibm.com/collaboration/wiki/display/WikiPtype/ganglia
<http://www.ibm.com/collaboration/wiki/display/WikiPtype/ganglia>>
> >>
> >> I am able to get the ganglia page and also the status of my
node. I am
> >> not getting the graphics ( graphs ). i have installed rrdtool in
> >> /usr/local/rrdtool- 1.2.3 i have also specified the rrdtool
path in
> >> /var/www/html/ganglia/conf.php
> >>
> >> define("RRDTOOL", "/usr/local/rrdtool-1.2.3");
> >you are so close. RRDTOOL is not the path to the directory but
rather
> >the path to the binary.
> >
> >define("RRDTOOL", "/usr/local/rrdtool-1.2.3/bin/rrdtool");
> >
> >should work for you.
> >
> >good luck
> >-matt
> >
> >
> >
> >
> >
> >
>
>
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email: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]>
http://ben.hartshorne.net
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