<div dir="ltr"><div>Hi José,</div><div><br></div><div>In your config, you need to tell DMQ about a minimum of one other node. This can be in the form of an IP or FQDN - however, where the FQDN resolves to a single IP, it does not make sense to perform anything other than an A lookup, so you should set the parameter to 0 in this case.</div><div><br></div><div><div>The number of nodes in your cluster is irrelevant - once started, DMQ will contact the one you have told it about and learn about the others automatically.</div></div><div><br></div><div>Optionally, you can tell DMQ about multiple nodes upfront (to account for instances where the first one may be down or unreachable), by giving it an FQDN which resolves to multiple IP addresses - in which case you'll need to set the multi_notify parameter to 1.</div><div><br></div><div>Does that help?</div><div><br></div><div>Cheers,</div><div>Charles</div><div><br></div><div class="gmail_extra"><br><div class="gmail_quote">On 22 September 2016 at 13:36, José Seabra <span dir="ltr"><<a href="mailto:joseseabra4@gmail.com" target="_blank">joseseabra4@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div>Hi Charles<br></div>I have modparam("dmq", "multi_notify", 1) because my A record resolves more than one Kamailio addresses, and if i understood well the documentation says that we need set it to a value different of 0 to resolve all ip addresses associated to the Name configured on DMQ.<br></div><div>I'm using DMQ with 4 kamailio instances, so i think that i need have it set to a value different than 0, or i'm wrong?.</div><div><p>Documentation says:<br></p><p>
Enables the ability to resolve multiple IPv4/IPv6 addresses for
a single notification address.
</p>
<p>
A value of zero resolves to the first IP address found.
A non-zero value resolves to all IP addresses associated with the host.
This includes addresses from DNS SRV records, A and AAAA records.
</p>
<p>
<span><em>Default value is <span>“<span>0</span>”</span>.</em></span>
</p><br></div>Thank you <br></div>Cheers<span class="HOEnZb"><font color="#888888"><br>José<br><div><div><br><br></div></div></font></span></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">2016-09-22 13:28 GMT+01:00 Charles Chance <span dir="ltr"><<a href="mailto:charles.chance@sipcentric.com" target="_blank">charles.chance@sipcentric.com</a><wbr>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hey,<div class="gmail_extra"><br><div class="gmail_quote"><span>On 22 September 2016 at 12:18, José Seabra <span dir="ltr"><<a href="mailto:joseseabra4@gmail.com" target="_blank">joseseabra4@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div><div><div><div>Hello Daniel and Charles,<br></div>Thank you for your feedback.<br></div>Another doubt is when we use a FQDN that only resolves as A record, would be better DMQ send only a A query or is there any reason for always try SRV?<br><br></div></div></div></div></blockquote><div> </div></span><div>As far as I recall (it's been a while since I did anything with this), the default behaviour is to query A record only. There is a mod_param to enable multi-record/SRV lookup:</div><div><br></div><div>modparam("dmq", "multi_notify", 1)<br></div><div><br></div><div>But the default is off.</div><div><br></div><div>Is this not the behaviour you are seeing?</div><div><br></div><div>Cheers,</div><div>Charles</div><div><div><div><br></div><div><br></div><div> </div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div><div><div></div>Thank you for your great job.<br><br></div>BR<br></div>José Seabra<br></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div>2016-09-22 8:33 GMT+01:00 Charles Chance <span dir="ltr"><<a href="mailto:charles.chance@sipcentric.com" target="_blank">charles.chance@sipcentric.com</a><wbr>></span>:<br></div></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div><p dir="ltr">Hello,</p>
<p dir="ltr">I can take a look today.</p>
<p dir="ltr">Cheers,<br>
Charles </p><div><div>
<div class="gmail_extra"><br><div class="gmail_quote">On 22 Sep 2016 06:20, "Daniel-Constantin Mierla" <<a href="mailto:miconda@gmail.com" target="_blank">miconda@gmail.com</a>> wrote:<br type="attribution"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div bgcolor="#FFFFFF">
<p>Hello,</p>
<p>I guess that the one who did the implementation of the srv query
for dmq hasn't "allocated" any service name. I haven't looked at
the sources, but I guess it should be a small patch to compose the
srv dns string to be queried -- maybe that part can be made a mod
param so each can choose its preferred service.</p>
<p>Cheers,<br>
Daniel<br>
</p>
<br>
<div>On 21/09/16 19:28, José Seabra wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div>
<div>
<div>
<div>Hello,<br>
</div>
I have a doubt related with DMQ dns behavior, I noticed
that when kamailio starts, it tries to resolve DMQ name
configured on parameter notification_address as the
following sequence:<br>
</div>
<ol>
<li>SRV </li>
<li>A</li>
<li>AAAA</li>
</ol>
</div>
</div>
<div>
<div>
<div>
<div>
<div><br>
</div>
<div>Isn't supposed kamailio try first resolve the
NAPTR DMQ name, and then SRV?<br>
</div>
<div>I'm asking this because kamailio is trying resolve
the SRV record without any transport protocol
specified on query, as my dns server only accepts
queries on the format "_Service._Proto.Name" the SRV
will never be resolved.<br>
<br>
</div>
<div>Thank you.<br>
</div>
<div>BR<br>
</div>
<div>-- <br>
<div>
<div>José Seabra</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<br>
<fieldset></fieldset>
<br>
<pre>______________________________<wbr>_________________
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
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</pre>
</blockquote>
<br>
<pre cols="72">--
Daniel-Constantin Mierla
<a href="http://twitter.com/#!/miconda" target="_blank">http://twitter.com/#!/miconda</a> - <a href="http://www.linkedin.com/in/miconda" target="_blank">http://www.linkedin.com/in/mic<wbr>onda</a>
Kamailio Advanced Training, Berlin, Oct 24-26, 2016 - <a href="http://www.asipto.com" target="_blank">http://www.asipto.com</a></pre>
</div>
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<br></blockquote></div></div>
<br>
</div></div></div></div><div><font style="font-size:10pt;font-family:helvetica,arial,sans-serif" color="gray">Sipcentric Ltd.
Company registered in England & Wales no. 7365592.</font><span style="font-size:10pt;font-family:helvetica,arial,sans-serif"> </span><font style="font-size:10pt;font-family:helvetica,arial,sans-serif" color="gray">Registered
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</div></div><div><div>
<br>
<div><font style="font-size:10pt;font-family:Helvetica,Arial,sans-serif" color="gray">Sipcentric Ltd.
Company registered in England & Wales no. 7365592.</font><span style="font-size:10pt;font-family:Helvetica,Arial,sans-serif"> </span><font style="font-size:10pt;font-family:Helvetica,Arial,sans-serif" color="gray">Registered
office: Faraday Wharf, Innovation Birmingham Campus, Holt Street, Birmingham Science Park, Birmingham B7 4BB.</font></div></div></div><br>______________________________<wbr>_________________<br>
SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list<br>
<a href="mailto:sr-users@lists.sip-router.org" target="_blank">sr-users@lists.sip-router.org</a><br>
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<br></blockquote></div><br><br clear="all"><br>-- <br><div data-smartmail="gmail_signature">Cumprimentos<div>José Seabra</div></div>
</div>
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<br></blockquote></div><br>
</div></div>
<br>
<div><font color="gray" style="font-size:10pt;font-family:Helvetica,Arial,sans-serif">Sipcentric Ltd.
Company registered in England & Wales no. 7365592.</font><span style="font-size:10pt;font-family:Helvetica,Arial,sans-serif"> </span><font color="gray" style="font-size:10pt;font-family:Helvetica,Arial,sans-serif">Registered
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