It looks like a command line arguments encoding issue somewhere around here
https://github.com/ganglia/ganglia-web/blob/master/functions.php#L1410
Not sure why apostrophe is being replaced with '. That's breaking
the rrdtool invocation. You will need to investigate how to change that
behavior.
Vladimir
On 2/14/24 12:19, Sun, Zhongdong wrote:
Hi everyone,
We just installed a new instance of Ganglia on Rocky OS 8.4.
Everything works well except the stacked graph doesn’t show up. I
searched this forum and found a few similar cases. For example, Janet
reported this issue in 2021, but in a CentOS 7 system. Vladimir
provided some solution but didn’t work in Rocky 8 system. I also
following some instructions for debug. Copied the address of the
stacked graph and appended ‘&debug=5’, which produced a command like this.
/usr/bin/rrdtool graph - -E --start \&\#039\;-3600s\&\#039\; --end
\&\#039\;N\&\#039\; --width 700 --height 300 --title \&\#039\;
aggregated load_one last hour\&\#039\; --upper-limit
\&\#039\;0\&\#039\; --lower-limit \&\#039\;0\&\#039\; CDEF:total=0
CDEF:mean=total,0,/ CDEF:last_total=total,POP,0
CDEF:last_mean=last_total,0,/ COMMENT:'\j' GPRINT:'total':AVERAGE:'Avg
Total\: %5.2lf' GPRINT:'last_total':LAST:'Current Total\: %5.2lf\c'
GPRINT:'mean':AVERAGE:'Avg Average\: %5.2lf'
GPRINT:'last_mean':AVERAGE:'Current Average\: %5.2lf\c'
When I ran this command in the machine, I got this result.
ERROR: start time: unparsable time: &'-3600s'
Does anyone know what can cause this? It seems a bug in stacked.php or
relative program, but I’m not familiar with this and cannot figure it
out.
By the way, we have been using Ganglia for a long time. It works
perfectly in CentOS 7. But we have to upgrade CentOS 7 since it’s near
end-of-life.
Any help would be appreciated.
Zhongdong
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