Tried both and with/without cache...
--------Pedreter...
On Tuesday, March 2, 2021, 04:46:08 PM GMT+1, Matus UHLAR - fantomas
<uh...@fantomas.sk> wrote:
On 02.03.21 15:26, Pedro David Marco wrote:
>Just in case someone has this issue...
>Short version:
>In heavy load environments, SA produces more UDP traffic (specially if answers
>are big, typically happens with TXT queries) than Linux kernel can handlewith
>default buffers (tested in Debian Buster), so many SA queries never get an
>answer and die on timeout.This not only affects final SA result, but
>performance.
>Correct Kernel UD tunning solves the problem!
do you run local resolving (non-forwarding) DNS server?
> On Monday, March 1, 2021, 06:06:24 PM GMT+1, Pedro David Marco
><pedrod_ma...@yahoo.com> wrote:
> >Hi all,>When there are several hundreds of lookups, Askdns / Async abort
> >many of them randomly even when 100% of queries got an answer.
>>I use local dns cache but every run of SA produces different number of
>>aborted remaining lookups. >if you dig manually from command line any aborted
>>query, answer is immediate.
>>I have not found any related bug in SA Bugzilla.. (pretty similar to this one
>> 7875 – AskDNS plugin does not correctly handle CNAMEs leading to TXTs )
>>After some debug, it seems that answers are not harvested properly... and
>>around 30% of them are lost in every run.
>>It is not a timeout problem: both tcpdump and dns-cache log show immediate
>>answers to 100% of queries in less than 1 second.
>>May this be solved in the new AskDns John Hardin mentioned some days ago?
>
>
--
Matus UHLAR - fantomas, uh...@fantomas.sk ; http://www.fantomas.sk/
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