Linux – nagiosgraph new services not showing

linuxmonitoringnagios

I am using Nagios Core with Nagiosgraph and had only enabled graphing for cpu usage for a while. This worked fine, but now i wanted to add some more services (for example memory usage). The new services are not working (no rrd data is generated).
The Nagiosgraph site only says "no data available" and I get no error in apache log, nagiosgraph.log or nagiosgraph-cgi.log.

The new services are standard services (nsclient++ MEMUSE for example) and of course they are included in the map file. If I execute the checks manually, it shows also the perfdata.

I added the services by enabling the "graphed-service" use. Did I miss something?

Best Answer

The Problem was a corrupt map file. It did not work for all services for some reason (even though there were mappings for them). However, replacing it and switching the server language to english worked. I had to do that, because perfdata returned values with commas like 5,32 instead of 5.32, so there was a perl error for conversion to float.

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I'm using Centreon which provides the perl script check_centreon_snmp_traffic.

Router – Monitoring router bandwidth usage via Nagios and SNMP

I did this with a cron script, stores current value in a temp file then next time uses it to calculate bandwidth utilization since last run.

#!/bin/bash

email_address=""
router_ip=""

# 80% BANDWIDTH [ (384000bps) 48,000Bps ] - 20% = 38,400 Bps
alertBW="76800"

lastBWFile="/var/log/ciscoGW.log"
lastBW=`cat $lastBWFile | awk '{print$2}'`
lastTime=`cat $lastBWFile | awk '{print$1}'`

curBW=` snmpget  -c snmap_name -v 1 $router_ip IF-MIB::ifOutOctets.2  | awk '{print$4}'`

let diffBW=$curBW-$lastBW
#echo "Diff BW: $diffBW"
timeNow=`date +%s`
let diffTime=$timeNow-$lastTime
let alertBW=$alertBW*$diffTime

echo "$timeNow $curBW" > $lastBWFile

if [ $diffBW -gt $alertBW ]; then
#       echo "Over limit!"
        echo "Bandwith used over $diffTime seconds: $diffBW" | mail -s "BANDWIDTH OVER LIMIT!!!!" $email_address
fi

Since I was more interested in actual peaks I've since moved to using rrdtool:

#start 15 minutes ago
#end 5 minutes ago since rrdtool queries every 5 minutes 
rrdtool fetch $FROM MAX -s -900 -e -300

Best Answer

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Windows – Monitor Network Card utilisation using Nagios

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