<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Klaus,<div><br></div><div>is that recursive or authoritative? Anything unusual like RPZ or catz?</div><div><br></div><div>Try snapshoting the call stack with eu-stack and save the one when the timeout happens.</div><div><br></div><div>Ondrej<br id="lineBreakAtBeginningOfSignature"><div dir="ltr"><div>--</div>Ondřej Surý — ISC (He/Him)<div><br></div><div>My working hours and your working hours may be different. Please do not feel obligated to reply outside your normal working hours.</div></div><div dir="ltr"><br><blockquote type="cite">On 4. 9. 2024, at 19:06, Klaus Darilion via bind-users <bind-users@lists.isc.org> wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr">
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style>@font-face { font-family: "Cambria Math"; }
@font-face { font-family: Calibri; }
p.MsoNormal, li.MsoNormal, div.MsoNormal { margin: 0cm; font-size: 11pt; font-family: Calibri, sans-serif; }
span.E-MailFormatvorlage17 { font-family: Calibri, sans-serif; color: windowtext; }
.MsoChpDefault { }
@page WordSection1 { size: 612pt 792pt; margin: 70.85pt 70.85pt 2cm; }
div.WordSection1 { page: WordSection1; }</style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
<div class="WordSection1">
<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"><span style="mso-ligatures:none">-- <o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:none">Klaus Darilion, Head of Operations<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:none">nic.at GmbH, Jakob-Haringer-Straße 8/V<o:p></o:p></span></p>
<p class="MsoNormal"><span style="mso-ligatures:none">5020 Salzburg, Austria<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<span>-- </span><br><span>Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list</span><br><span></span><br><span>ISC funds the development of this software with paid support subscriptions. Contact us at https://www.isc.org/contact/ for more information.</span><br><span></span><br><span></span><br><span>bind-users mailing list</span><br><span>bind-users@lists.isc.org</span><br><span>https://lists.isc.org/mailman/listinfo/bind-users</span><br></div></blockquote></div></body></html>