Rndc stats not showing correct figures

Rndc stats not showing correct figures

Post by Hisham Al » Mon, 24 Sep 2007 14:17:56

Hi All,

I have 2 cache DNS servers running BIND 9.4.1. The command 'rndc
stats' works fine on one server with correct figures while on the
other one showing very low number of queries.

+++ Statistics Dump +++ (1190524500)
success 493122 <<<<<< These numbers are not correct , very low
referral 448
nxrrset 6406
nxdomain 133565
recursion 649462
failure 491752
duplicate 14223
dropped 41853
--- Statistics Dump --- (1190524500)

By monitoring its log file i can see dns requests hitting the server
but not reflecting the correct number for (e.g success) in named.stats
when I run 'rndc stats'. I can't figure out what's wrong !!
any help would be appreciated.

Rndc stats not showing correct figures

Post by Mark Andre » Tue, 25 Sep 2007 08:31:02

We don't advise running BIND 4.9.1.

My bet is that this is the second server handed out by DHCP
(or whatever mechanism you are using to handout nameservers).
As such it will tend to only get queried when the first
server has failed to resolve the query or due to timeouts.

This means that most queries that are asked of this server
have already failed to resolve in a timely manner. They
are unlikely to resolve on the second server which is reflected
in the statistics above.

Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia