Hi Bind Users,
Good day. I wish to know what is the industry standard when dealing with the
"TOTAL QPS" and how do we calculate this with BIND?
My understanding of "QPS" is the queries that a DNS server has received
regardless if it was dealt with a successful response, nxdomain or timed-out
due to lame.
But is there a best practice in calculating it from the named stats?
Can the dynamic updates, notify and such be considered as queries?
There are several monitoring systems, load balancers and the like that monitors
Total QPS from a DNS server registered in the system. I wish to create an
in-house script to calculate the same way.
I got a two instances (with 1 minute differential) sampling of rndc stats of
two DNS caching servers.
Thank you.
The first take showed the following
++ Name Server Statistics ++
5818360608 IPv4 requests received
4463 IPv6 requests received
16627 requests with EDNS(0) received
213523 TCP requests received
709406 auth queries rejected
10280592 recursive queries rejected
10 update requests rejected
5700295060 responses sent
1165166 truncated responses sent
16627 responses with EDNS(0) sent
4692675534 queries resulted in successful answer
137516372 queries resulted in authoritative answer
5469041736 queries resulted in non authoritative answer
339189 queries resulted in referral answer
199466607 queries resulted in nxrrset
77252124 queries resulted in SERVFAIL
714076778 queries resulted in NXDOMAIN
980927690 queries caused recursion
86311171 duplicate queries received
31745639 queries dropped
10990123 other query failures
a minute later...
++ Name Server Statistics ++
5817893991 IPv4 requests received
4463 IPv6 requests received
16627 requests with EDNS(0) received
213516 TCP requests received
708839 auth queries rejected
10279493 recursive queries rejected
10 update requests rejected
5699834173 responses sent
1165099 truncated responses sent
16627 responses with EDNS(0) sent
4692279730 queries resulted in successful answer
137507789 queries resulted in authoritative answer
5468595382 queries resulted in non authoritative answer
339185 queries resulted in referral answer
199450131 queries resulted in nxrrset
77248026 queries resulted in SERVFAIL
714034125 queries resulted in NXDOMAIN
980871535 queries caused recursion
86305506 duplicate queries received
31745639 queries dropped
10988457 other query failures
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