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<p class="MsoNormal">Sorry, I forgot to mention that this is an authoritative nameserver. (For several ccTLDs. Each customers has its own Bind process. Currently I only noticed timeouts on Binds hosting bigger ccTLDs).<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I will look how to integrate eu-stack into our monitoring check.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal">Klaus<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">-- <o:p></o:p></p>
<p class="MsoNormal">Klaus Darilion, Head of Operations<o:p></o:p></p>
<p class="MsoNormal">nic.at GmbH, Jakob-Haringer-Straße 8/V<o:p></o:p></p>
<p class="MsoNormal">5020 Salzburg, Austria<o:p></o:p></p>
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<p class="MsoNormal"><b><span lang="DE">From:</span></b><span lang="DE"> Ondřej Surý <ondrej@isc.org>
<br>
<b>Sent:</b> Wednesday, September 4, 2024 7:23 PM<br>
<b>To:</b> Klaus Darilion <klaus.darilion@nic.at><br>
<b>Cc:</b> bind-users@lists.isc.org<br>
<b>Subject:</b> Re: Sporadic Timeouts after upgrading to bind9.20<o:p></o:p></span></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Klaus,<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">is that recursive or authoritative? Anything unusual like RPZ or catz?<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Try snapshoting the call stack with eu-stack and save the one when the timeout happens.<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Ondrej<o:p></o:p></p>
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<p class="MsoNormal">--<o:p></o:p></p>
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<p class="MsoNormal">Ondřej Surý — ISC (He/Him)<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">My working hours and your working hours may be different. Please do not feel obligated to reply outside your normal working hours.<o:p></o:p></p>
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<p class="MsoNormal" style="margin-bottom:12.0pt">On 4. 9. 2024, at 19:06, Klaus Darilion via bind-users <<a href="mailto:bind-users@lists.isc.org">bind-users@lists.isc.org</a>> wrote:<o:p></o:p></p>
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<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Hello!<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">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).<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Since that, we have sporadic timeouts (3s). On the nodes with more qps we see it more often.<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">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 …?<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">Thanks<o:p></o:p></p>
<p class="MsoNormal">Klaus<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">-- <o:p></o:p></p>
<p class="MsoNormal">Klaus Darilion, Head of Operations<o:p></o:p></p>
<p class="MsoNormal">nic.at GmbH, Jakob-Haringer-Straße 8/V<o:p></o:p></p>
<p class="MsoNormal">5020 Salzburg, Austria<o:p></o:p></p>
<p class="MsoNormal"> <o:p></o:p></p>
<p class="MsoNormal">-- <br>
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