[Pdns-users] Big difference between udp-answers and udp4-answers

[Manuel de Ferran]

Greetings,

we have a PDNS 2.9.21 server that is authoritative for a couple of zones.
I'm investigating on recent "java.net.UnknownHostException" that came up on
some Java applications few times a day.

During my investigation I noticed something odd in "pdns_control list"
output :
corrupt-packets=8
deferred-cache-inserts=9353
deferred-cache-lookup= 8471
latency=0
packetcache-hit=423920330
packetcache-miss=109425963
packetcache-size=230
qsize-q=0
query-cache-hit=723194390
query-cache-miss=53504339
recursing-answers=1593163
recursing-questions=1593163
servfail-packets=0
tcp-answers=1
tcp-queries=2
timedout-packets=1
udp-answers=533348099
udp-queries=533348104
udp4-answers=531754936
udp4-queries=533348100
udp6-answers=0
udp6-queries=0

There's a significant difference between udp4-answers (531754936) and
udp-answers (533348099).

Any clues about that ?
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