statistics / named.stats / IPv4 NS address fetch failed

Fabien Seisen seisen at
Wed Oct 26 09:04:34 UTC 2011

Hello .*,

yesterday, i saw some weird behaviour on my recursive servers

I make some graphs using the data provided by "rndc stats" and i saw:

- a bit more of incoming queries
- a lot of dropped queries
- recursive slots goes to the max
- cache hit dropped from 90% to 65%)

- no more external queries than normal
- external queries response time did not changed

but i got a lot of (+500%)
 "IPv4 NS address fetch failed"

What is the real meaning of this counter ?

thank you
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