hi nagios users
i'm having problems getting nagiosgrapher to work with my Nagios Version
3.0.2 on my debian etch box.
the graphs are not shown.
instead i get an image with the following error message::
RRD Error: No DS called ´mailq´ in ´...nagios/var/rdd/<host>/2514.rrd´
Options:
-cBACK#ffffff
...
Values:
DEF:mailq=...nagios/var/rdd/<host>/2514.rrd:mailq:AVERAGE
...
in ngraph.log i can see that the servicedata can't be extracted correctly:
2008-10-05 14:17:53 collect2.pl: Got signal: Use of uninitialized value in
regexp compilation at /usr/local/nagios/contrib/perl/NagiosGrapher.pm line
780, <FIFO> line 1.
...
2008-10-05 14:17:53 PRG: error, Inappropriate ioctl for device
2008-10-05 14:17:53 collect2.pl: Got signal: Use of uninitialized value in
substitution (s///) at /usr/local/nagios/contrib/collect2.pl line 383,
<FIFO> line 1.
looks like the service_name variable is not set so the regex can't be
compiled.
(this is line 780 in NagiosGrapher.pm)::
@out = grep $service =~ m/$_->{service_name}/i, @out
if ( defined($service) );
any hints what's wrong with my setup?
i'd also appreciate any hint on how to use a self-compiled version of
rrdtool (eg under /opt/rddtool/bin/rrdtool)
since ngrapher should be used with the most recent version available (1.3.4)
and my systems version is 1.2.15.
i tried "rddtool /opt/rrdtool-1.3.4/bin/rrdtool" in ngraph.ncfg. but i guess
this should be defined when calling autoconf or configure in step 2 below
so the correct binary is used in rrd2-graph.cgi
here are the steps i followed for setting up ngrapher:
1) download NagiosGrapher-1.6.1-rc5-0.5.tar.gz from
https://www.nagiosforge.org/gf/project/nagiosgrapher/
2) untar and follow doc/INSTALL (autoconf, configure, make testdeps, make
install)
3) added cfg_dir=/usr/local/nagios/etc/serviceext to nagios.cfg
since i want a separate config file for each host (Serviceexttype, MULTIPLE)
4) changed the following variables in nagios.cfg::
process_performance_data=1
service_perfdata_command=process-service-perfdata
and added the new command to etc/objects/commands.cfg::
define command{
command_name process-service-perfdata
command_line /usr/local/nagios/contrib/fifo_write
/usr/local/nagios/var/rw/ngraph.pipe
'$HOSTNAME$\t$SERVICEDESC$\t$SERVICEOUTPUT$\t$SERVICEPERFDATA$\n'
3
}
5) uncomment out step and set it to 300 in ngraph.ncfg
(suggested in
http://www.nagios-portal.org/wbb/index.php?page=Thread&threadID=9523 at the
bottom)
6) start nagios_grapher and restart nagios.
i can see that ngrapher starts to collect data, and hands it over to rrd in
`/usr/local/nagios/var/ngraph.log`
ngrapher also writes serviceextensions for my hosts
to /usr/local/nagios/etc/serviceext/
and there is data for each host in /usr/local/nagios/var/rrd/
7) restarting nagios to make the graph icons appear in the webinterface
regards, fRiSi
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Tel: +43 5572 908877, Fax: +43 5572 908877-66
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