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<p>Hello,</p>
<p>if it appeared without doing any upgrade to the OS, then likely a
backend/system you interact with has intervals when it doesn't
respond quick enough.</p>
<p>Try to check:</p>
<p> - a database table where you do insert or query is too big
(e.g., acc)<br>
- dns server<br>
</p>
You can enable latency tracking for actions in cofig, see the core
cookbook wiki, there are some global parameter with 'latency' in
name that should help spotting if there is a particular action in
config that is slow:<br>
<br>
*
<a class="moz-txt-link-freetext" href="https://www.kamailio.org/wiki/cookbooks/5.1.x/core#latency_cfg_log">https://www.kamailio.org/wiki/cookbooks/5.1.x/core#latency_cfg_log</a><br>
<br>
If that is not the case, then might be the OS, two days ago or so
there was another discussion here about same topic which proved to
be due to a faulty kernel.<br>
<br>
Cheers,<br>
Daniel<br>
<br>
<div class="moz-cite-prefix">On 29.08.18 21:29, Daniel W. Graham
wrote:<br>
</div>
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<p class="MsoNormal">Recently encountered a delay issue, packets
arrive on system but Kamailio doesn’t process right away. Here
are a few details, any direction on what I can do to narrow
down is appreciated.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The receive queue normally sits at 0 or has
random spike, when this issue occurs receive queue remains
high like the below output.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Version 5.1.5 <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">ss -4 -n -l | grep 5060<o:p></o:p></p>
<p class="MsoNormal">udp UNCONN 321536 0
207.241.130.2:5060 *:*
<o:p></o:p></p>
<p class="MsoNormal">tcp LISTEN 0 128
207.241.130.2:5060 *:*
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-dan<span style="font-size:10.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<pre wrap="">_______________________________________________
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<br>
<pre class="moz-signature" cols="72">--
Daniel-Constantin Mierla -- <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a>
<a class="moz-txt-link-abbreviated" href="http://www.twitter.com/miconda">www.twitter.com/miconda</a> -- <a class="moz-txt-link-abbreviated" href="http://www.linkedin.com/in/miconda">www.linkedin.com/in/miconda</a>
Kamailio World Conference -- <a class="moz-txt-link-abbreviated" href="http://www.kamailioworld.com">www.kamailioworld.com</a>
Kamailio Advanced Training, Nov 12-14, 2018, in Berlin -- <a class="moz-txt-link-abbreviated" href="http://www.asipto.com">www.asipto.com</a></pre>
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