[Pdns-users] PowerDNS Monitoring and gathering Statistics

[Brad Dameron]

We use Zenoss open source version. Then on the server I created a snmpd.local.conf file that has the following:

exec all-outqueries      /opt/snmp-scripts/recursor_stats all-outqueries
exec cache-entries       /opt/snmp-scripts/recursor_stats cache-entries
exec cache-hits          /opt/snmp-scripts/recursor_stats cache-hits

etc, etc.

The recursor_stats script is used for older version that are not fully multithreaded. Here is what it looks like:

#!/bin/sh
#Pull pdns_recursor stats for use via Zenoss
#On the servers running pdns_recursor, we have four processes running, two for each
#interface
PIDFILEONE=/var/run/recursor1/pdns_recursor.pid
PIDFILETWO=/var/run/recursor2/pdns_recursor.pid
RUNNINGCOUNT=0
if [ -e $PIDFILEONE ]; then
        for PID in `cat $PIDFILEONE`; do
                PDNSCOUNTONE=`/usr/bin/rec_control --socket-dir=/var/run/recursor1/ --socket-pid=$PID get $1`
                RUNNINGCOUNT=$(( $PDNSCOUNTONE+$RUNNINGCOUNT ))
        done
fi
if [ -e $PDFILETWO ]; then
        for PID in `cat $PIDFILETWO`; do
                PDNSCOUNTTWO=`/usr/bin/rec_control --socket-dir=/var/run/recursor2/ --socket-pid=$PID get $1`
                RUNNINGCOUNT=$(( $PDNSCOUNTTWO+$RUNNINGCOUNT ))
        done
fi
echo $RUNNINGCOUNT


We run 2 daemons each with set with --fork so we have to do a count of all the daemons.

Then in Zenoss we use the OID of 1.3.6.1.4.1.2021.8.1.101.1, 1.3.6.1.4.1.2021.8.1.101.2, 1.3.6.1.4.1.2021.8.1.101.3 to pull these.

Brad



> -----Original Message-----
> From: pdns-users-bounces at mailman.powerdns.com [mailto:pdns-users-
> bounces at mailman.powerdns.com] On Behalf Of gaurav chaturvedi
> Sent: Thursday, November 25, 2010 4:27 AM
> To: pdns-users at mailman.powerdns.com
> Subject: [Pdns-users] PowerDNS Monitoring and gathering Statistics
> 
> Hey,
> 
>    I am running few PowerDNS Authoritative servers, and I was
> wondering how do you keep an eye on performance of your dns servers.
> 
> Google gave me some solutions, but nothing satisfactory. I have been
> testing  DSC ( DNS Stats Collector ) , dnsmezzo and dns2db.
> DSC is a real pain to configure and get going.
> dnsmezzo is totally undocumented
> and dns2db is very heavy on the server. (The collector itself has been
> the cause of 80% iowait on the server)
> 
>   Currently I am using cacti + RRD + mrtg for a few graphs
> (http://forums.cacti.net/about37716.html) . But I am looking for
> something better.
> 
> Looking forward to some feeback.
> 
> Gaurav Chaturvedi
> _______________________________________________
> Pdns-users mailing list
> Pdns-users at mailman.powerdns.com
> http://mailman.powerdns.com/mailman/listinfo/pdns-users


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