<div dir="ltr">Hi Michal,<div><br></div><div>I've already encountered this same problem and got an answer from Daniel. Check below link.</div><div><br></div><div><a href="https://lists.kamailio.org/pipermail/sr-users/2019-October/107092.html">https://lists.kamailio.org/pipermail/sr-users/2019-October/107092.html</a> </div><div><br></div><div>Cheers. <br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Oct 30, 2019 at 9:57 AM Daniel-Constantin Mierla <<a href="mailto:miconda@gmail.com">miconda@gmail.com</a>> wrote:<br></div><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>how often are you requesting the list of all dialogs (what is the
n in that every n seconds)? Is it done using a single evapi
connection, or are there many of them?</p>
<p>And to clarify, is the error ("cannot serialize event") happening
when there is no call or when there are too many? Is not clear for
me given that you follow with what you expect to be when nobody is
calling ...</p>
<p>Cheers,<br>
Daniel<br>
</p>
<div>On 30.10.19 14:26, Michal Škuta wrote:<br>
</div>
<blockquote type="cite">
<div dir="ltr">Hello, Kamailio community,<br>
we are implementing evapi communication to our Kamailio server.
We have implemented and tested it on our testing server.
Everything was working OK.<br>
<br>
Now we are testing it on our production servers with a lot more
calls and we have some problems here. <br>
Every n seconds we are requesting from Kamailio list of all
dialogs. And this list of dialogs (from jsonrpc <b>dlg.list</b>)
is sent to evapi connection.<br>
<div>Here is a snippet of our <b>Kamailio code</b>:</div>
<div><br>
</div>
<div><span style="font-family:monospace">route[CGR_DLG_LIST]<br>
{<br>
xlog("L_INFO", "XLOG: $ci [CGR_DLG_LIST] Requested
dialog list");<br>
# CGRateS connection is still alive, set check to
true<br>
$sht(cgrconn=>check) = 1;<br>
if $sht(cgrconn=>cgr) == $null {<br>
sl_send_reply("503","Charging controller
unreachable");<br>
exit;<br>
}<br>
jsonrpc_exec('{"jsonrpc":"2.0","id":1,
"method":"dlg.list","params":[]}');<br>
xlog("L_INFO", "XLOG: $ci [CGR_DLG_LIST] Test1:
$jsonrpl(body)");<br>
<br>
evapi_relay("{\"event\":\"CGR_DLG_LIST_REPLY\",<br>
\"jsonrpl_body\":$jsonrpl(body)}");<br>
}</span><br>
</div>
<br>
<div>During a higher number of calls Kamailio is generating
ERROR messages from evapi module. Here is the syslog:</div>
<div><br>
</div>
<span style="font-family:monospace">Oct 30 12:02:15 kam-prod
/opt/ipgate/kamailio/sbin/kamailio[19512]: INFO:
<script>: XLOG: 123 [CGR_DLG_LIST] Requested dialog list<br>
Oct 30 12:02:15 kam-prod
/opt/ipgate/kamailio/sbin/kamailio[19512]: INFO:
<script>: <br>
Oct 30 12:02:15 kam-prod
/opt/ipgate/kamailio/sbin/kamailio[19512]: DEBUG: evapi
[evapi_dispatch.c:740]: _evapi_relay(): relaying event data [<br>
Oct 30 12:02:15 kam-prod
/opt/ipgate/kamailio/sbin/kamailio[19512]: ERROR: evapi
[evapi_dispatch.c:764]: _evapi_relay(): cannot serialize event<br>
Oct 30 12:02:15 kam-prod
/opt/ipgate/kamailio/sbin/kamailio[19512]: ERROR: evapi
[evapi_mod.c:265]: w_evapi_relay(): failed to relay event: <br>
</span>
<div><br>
</div>
<div><b>We are expecting something like this when nobody is
calling</b><br>
</div>
<div><span style="font-family:monospace">Oct 30 14:12:22
kam-test /opt/ipgate/kamailio/sbin/kamailio[32090]: INFO:
<script>: XLOG: 123 [CGR_DLG_LIST] Requested dialog
list<br>
Oct 30 14:12:22 kam-test
/opt/ipgate/kamailio/sbin/kamailio[32090]: INFO:
<script>: XLOG: 123 [CGR_DLG_LIST] Test1: {<br>
#011"jsonrpc":#011"2.0",<br>
#011"result":#011[],<br>
#011"id":#0111<br>
}<br>
Oct 30 14:12:22 kam-test
/opt/ipgate/kamailio/sbin/kamailio[32090]: DEBUG: evapi
[evapi_dispatch.c:740]: _evapi_relay(): relaying event data
[{"event":"CGR_DLG_LIST_REPLY",<br>
#011#011#011"jsonrpl_body":{<br>
#011"jsonrpc":#011"2.0",<br>
#011"result":#011[],<br>
#011"id":#0111<br>
}}] (96)<br>
Oct 30 14:12:22 kam-test
/opt/ipgate/kamailio/sbin/kamailio[32090]: DEBUG: evapi
[evapi_dispatch.c:778]: _evapi_relay(): sending [0x169ff674]
[96:{"event":"CGR_DLG_LIST_REPLY",<br>
#011#011#011"jsonrpl_body":{<br>
#011"jsonrpc":#011"2.0",<br>
#011"result":#011[],<br>
#011"id":#0111<br>
}},] (100)<br>
Oct 30 14:12:22 kam-test
/opt/ipgate/kamailio/sbin/kamailio[32090]: DEBUG: evapi
[evapi_dispatch.c:789]: _evapi_relay(): dispatching
[0x169ff674] [96:{"event":"CGR_DLG_LIST_REPLY",<br>
#011#011#011"jsonrpl_body":{<br>
#011"jsonrpc":#011"2.0",<br>
#011"result":#011[],<br>
#011"id":#0111<br>
}},] (100)</span></div>
<div><br>
</div>
<div><br>
</div>
<div>We enabled debug messages for module evapi and are trying
to understand where is the problem. To make this work to this
state we needed to increase the <b>pv_buffer</b> to really
big size (2097152).</div>
<div>It looks like $jsonrpl(body) is not ready and everything
concated with it is not working.</div>
<div><br>
</div>
<div>
<pre><span style="font-family:arial,sans-serif"><code><code><span style="font-family:arial,sans-serif">Any help or suggestion is welcomed.</span>
</code></code></span></pre>
<pre><code><code><span style="font-family:arial,sans-serif">Sincerely Michal</span></code></code></pre>
</div>
<div><br>
</div>
<div><br>
</div>
<div><br>
</div>
</div>
<br>
<fieldset></fieldset>
<pre>_______________________________________________
Kamailio (SER) - Users Mailing List
<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a>
<a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" target="_blank">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a>
</pre>
</blockquote>
<pre cols="72">--
Daniel-Constantin Mierla -- <a href="http://www.asipto.com" target="_blank">www.asipto.com</a>
<a href="http://www.twitter.com/miconda" target="_blank">www.twitter.com/miconda</a> -- <a href="http://www.linkedin.com/in/miconda" target="_blank">www.linkedin.com/in/miconda</a>
Kamailio World Conference - April 27-29, 2020, in Berlin -- <a href="http://www.kamailioworld.com" target="_blank">www.kamailioworld.com</a></pre>
</div>
_______________________________________________<br>
Kamailio (SER) - Users Mailing List<br>
<a href="mailto:sr-users@lists.kamailio.org" target="_blank">sr-users@lists.kamailio.org</a><br>
<a href="https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users" rel="noreferrer" target="_blank">https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users</a><br>
</blockquote></div>