Graphs are fuzzy and distorted : Solaris 8/sparc
Hi hobbit list, after installing hobbit server on a Solaris 8 machine a couple of days ago with a couple of clients, all solaris8 / sparc I got issues with graphs generation, it gives some fuzzy results with the drawed data line, going up or down, or graphic filling with colors
It is also drawing big black X above all the legend's solid-colored squares
Here is the source code I used to build rrdtool :
rrdtool-1.2.17 freetype-2.3.0 libart_lgpl-2.3.17 libpng-1.2.15
Can anyone point me to something wrong I would have done ? I cant find any errors in apache or in hobbit logs
Thank you Yannick
On Tue, Feb 06, 2007 at 04:14:01PM -0500, Yannick Mercier wrote:
Hi hobbit list, after installing hobbit server on a Solaris 8 machine a couple of days ago with a couple of clients, all solaris8 / sparc I got issues with graphs generation, it gives some fuzzy results with the drawed data line, going up or down, or graphic filling with colors
It is also drawing big black X above all the legend's solid-colored squares
I see you asked this on the rrd-users mailing list tonight, and provided links to some of the graphs. They do look bizarre - I've never seen anything like it - but since the graph generation is 100% done by rrdtool, I think you're right to post that question on their mailing list.
Regards, Henrik
Yes, I hope that I will get some help because I really dont know where to look in the hobbit config for graphs generation parameters that I could change.. I thought trying to change fonts, colors if I could ... and see if it can get things better Ive been looking to turn on some debugging around graphs generation but I cant find no such parameters ..
if anyone wants to see the graphs, I uploaded them at : http://jubeininja.spaces.live.com/
Yan
On 2/10/07, Henrik Stoerner <henrik at hswn.dk> wrote:
On Tue, Feb 06, 2007 at 04:14:01PM -0500, Yannick Mercier wrote:
Hi hobbit list, after installing hobbit server on a Solaris 8 machine a couple of days ago with a couple of clients, all solaris8 / sparc I got issues with graphs generation, it gives some fuzzy results with the drawed data line, going up or down, or graphic filling with colors
It is also drawing big black X above all the legend's solid-colored squares
I see you asked this on the rrd-users mailing list tonight, and provided links to some of the graphs. They do look bizarre - I've never seen anything like it - but since the graph generation is 100% done by rrdtool, I think you're right to post that question on their mailing list.
Regards, Henrik
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On Sat, Feb 10, 2007 at 04:56:28PM -0500, Yannick Mercier wrote:
Yes, I hope that I will get some help because I really dont know where to look in the hobbit config for graphs generation parameters that I could change..
One thing you could try was to completely remove any Hobbit code from the graph generation and see if the graph image still looks weird.
Get one of the graphs in your browser and note the URL for the graph image. (If using Firefox,then right-click and "View image" will bring up only the graph image, with the URL for this in the address bar). It will be something like (one long line):
http://hobbit.test.com/cgi-bin/hobbitgraph.sh?host=myhost&service=la&graph_w...
Grab the part after the '?' and put it into the QUERY_STRING environment variable, and setup two other env. variable mimicking how the CGI program is invoked:
QUERY_STRING="host=myhost&service=la&graph_width=576&graph_height=120&disp=myhost&nostale&color=green&graph=hourly&action=view" REQUEST_METHOD="GET" SCRIPT_NAME="hobbitgraph.sh" export QUERY_STRING REQUEST_METHOD SCRIPT_NAME
then run "bbcmd hobbitgraph.cgi --debug >/tmp/graph.out". The top of "graph.out" is the debugging output. Should be like this:
2007-02-10 23:16:35 rrdgraph 2007-02-10 23:16:35 - 2007-02-10 23:16:35 --title 2007-02-10 23:16:35 myhost CPU Load Last 48 Hours 2007-02-10 23:16:35 -w576 2007-02-10 23:16:35 -h120 2007-02-10 23:16:35 -v 2007-02-10 23:16:35 Load 2007-02-10 23:16:35 -a 2007-02-10 23:16:35 PNG 2007-02-10 23:16:35 -s e-48h 2007-02-10 23:16:35 DEF:avg=la.rrd:la:AVERAGE 2007-02-10 23:16:35 CDEF:la=avg,100,/ 2007-02-10 23:16:35 AREA:la#00CC00:CPU Load Average 2007-02-10 23:16:35 -u 1.0 2007-02-10 23:16:35 GPRINT:la:LAST: \: %5.1lf (cur) 2007-02-10 23:16:35 GPRINT:la:MAX: \: %5.1lf (max) 2007-02-10 23:16:35 GPRINT:la:MIN: \: %5.1lf (min) 2007-02-10 23:16:35 GPRINT:la:AVERAGE: \: %5.1lf (avg)\n 2007-02-10 23:16:35 COMMENT:Updated: 10-Feb-2007 23:16:35
Each line is one of the arguments to the "rrd_graph()" function call. You can generate the exact same graph image using the rrdtool program:
cd ~hobbit/data/rrd/myhost
rrdtool graph
-
--title
"myhost CPU Load Last 48 Hours"
-w576
-h120
-v
Load
-a
PNG
-s e-48h
"DEF:avg=la.rrd:la:AVERAGE"
"CDEF:la=avg,100,/"
"AREA:la#00CC00:CPU Load Average"
-u 1.0
"GPRINT:la:LAST: \: %5.1lf (cur)"
"GPRINT:la:MAX: \: %5.1lf (max)"
"GPRINT:la:MIN: \: %5.1lf (min)"
"GPRINT:la:AVERAGE: \: %5.1lf (avg)\n"
"COMMENT:Updated: 10-Feb-2007 23:16:35" >/tmp/mygraph.png
Then take a look at the /tmp/mygraph.png file in your browser and see if it has the same problem. If it does, then it's purely an rrdtool problem.
Regards, Henrik
participants (2)
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henrik＠hswn.dk
-
yanmercier＠gmail.com