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<p>Hello,</p>
<p>I get image not found on that link, have you removed it?</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div class="moz-cite-prefix">On 01.06.20 13:57, George
Diamantopoulos wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAPcKEYNiYFozUCySXPM=x_8q5PukoYPxZxj4nY03nYQnsHGpkg@mail.gmail.com">
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<div>Hello all,</div>
<div><br>
</div>
<div>I've recently been experimenting with dmq, and I've noticed
something that seemed a little odd. shmem use would often be
abnormally high on otherwise idle kamailio nodes (literally,
only dispatcher module OPTIONS were exchanged at the time
besides KDMQ messages).</div>
<div><br>
</div>
<div>After disabling the "enable_dmq" parameter for the dialog
module, this sort of absurd behaviour ceased. To get a
quantified idea of this change's effect, check out the
following screenshot from our monitoring system:<br>
</div>
<div style="margin-left:40px"><a
href="https://pasteboard.co/Jb430lD.png"
moz-do-not-send="true">https://pasteboard.co/Jb430lD.png</a></div>
<div><br>
</div>
<div>As you can see, the spikes stopped manifesting at around
05:00, when dmq was disabled for dialog (albeit still employed
for htable). shmem use then grew as traffic was introduced to
these nodes, and htables began filling with data.<br>
</div>
<div><br>
</div>
<div>I was wondering if this to be expected, which I find highly
odd given that at the time other productive systems in the DMQ
cluster were also idle (given the time of the day), not to
mention that their shmem usage was not nearly as high.</div>
<div><br>
</div>
<div>Could this be attributed to some configuration error, with
updates looping endlessly (or until some counter reaches zero
or something) among nodes? Or could memory be used for other
housekeeping purposes unrelated to dmq dialog sharing?</div>
<div><br>
</div>
<div>Lastly, what is the meaning (and differences) of these
shmem stats?</div>
<div>
<ul>
<li>real_used_size</li>
<li>used_size</li>
<li>max_used_size</li>
</ul>
<div>Max used size I get (I'm guessing maximum seen since
server was started?) but what's the difference between
real_used and used? Thanks!</div>
<div><br>
</div>
<div>Best regards,</div>
<div>George<br>
</div>
</div>
<div><br>
</div>
</div>
<br>
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<pre class="moz-quote-pre" wrap="">_______________________________________________
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</pre>
</blockquote>
<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>
Funding: <a class="moz-txt-link-freetext" href="https://www.paypal.me/dcmierla">https://www.paypal.me/dcmierla</a></pre>
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