Sporadic Timeouts after upgrading to bind9.20

[Ondřej Surý]

Klaus,

is that recursive or authoritative? Anything unusual like RPZ or catz?

Try snapshoting the call stack with eu-stack and save the one when the timeout happens.

Ondrej
--
Ondřej Surý — ISC (He/Him)

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> On 4. 9. 2024, at 19:06, Klaus Darilion via bind-users <bind-users at lists.isc.org> wrote:
> 
> 
> Hello!
>  
> On our production name servers we have check every 30s if bind is alive by sending a SOA query to bind. Today I upgraded a few nodes from 9.18.x (x between 17 and 27) to 9.20.1 (Ubuntu 24.04 with packages from ISC ppa).
>  
> Since that, we have sporadic timeouts (3s). On the nodes with more qps we see it more often.
>  
> Before I dig into the problem, are there any specific changes to 9.20 that I should look at? Maybe some default value changes for socket buffers, thread handling …?
>  
> Thanks
> Klaus
>  
> --
> Klaus Darilion, Head of Operations
> nic.at GmbH, Jakob-Haringer-Straße 8/V
> 5020 Salzburg, Austria
>  
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