31 Oct
2019
31 Oct
'19
8:12 p.m.
Hello,
I just finished pushing on master branch a series of commits targeting
to have evapi using an internal buffer for the data parameter instead of
relying on pv-related buffers.
Can people facing the reported issue try with latest master and report
if all goes ok, even without setting pv buffer size to higher value?
On the other hand, because the reports so far where related to the use
of jsonrpc response, I am thinking of adding a dedicated function like:
evapi_relay_jsonrpcs_response(), so it is no need to copy from the
internal buffer of jsonrpcs module to the internal buffer of evapi.
Thinking of a few other enhancements, therefore I am asking for feedback
to see what and how to do:
1) does cgrates require all the attributes from the active dialog rpc
list command? I was considering for quite some time to add a new rpc
command in dialog module to list active dialogs with fewer attributes
(e.g., dialog hash id, label, call id, from tag, to tag, from address,
to address and state). Maybe we can add one tailored for cgrates needs
2) maybe worth considering to add a cgrates tailored module (or just a
function in evapi module like evapi_relay_dialog_list()), so the list of
active dialogs is retrieved directly from dialog module, avoiding to go
through jsonrpcs module, like it seems to be the current mechanism. So a
question here would be if cgrates interaction with kamailio requires
more than just fetching active calls via evapi (e.g., trigger BYE for
active calls in case of prepaid) -- is out there a complete config about
using cgrates with all the features/commands interacting with kamailio?
Cheers,
Daniel
On 30.10.19 15:56, Sergiu Pojoga wrote:
Hi Michal,
I've already encountered this same problem and got an answer from
Daniel. Check below link.
https://lists.kamailio.org/pipermail/sr-users/2019-October/107092.html
Cheers.
On Wed, Oct 30, 2019 at 9:57 AM Daniel-Constantin Mierla
<miconda(a)gmail.com <mailto:miconda@gmail.com>> wrote:
Hello,
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?
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 ...
Cheers,
Daniel
On 30.10.19 14:26, Michal Škuta wrote:
--
Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Kamailio World Conference - April 27-29, 2020, in Berlin -- www.kamailioworld.com
Hello, Kamailio community,
we are implementing evapi communication to our Kamailio server.
We have implemented and tested it on our testing server.
Everything was working OK.
Now we are testing it on our production servers with a lot more
calls and we have some problems here.
Every n seconds we are requesting from Kamailio list of all
dialogs. And this list of dialogs (from jsonrpc *dlg.list*) is
sent to evapi connection.
Here is a snippet of our *Kamailio code*:
route[CGR_DLG_LIST]
{
xlog("L_INFO", "XLOG: $ci [CGR_DLG_LIST] Requested dialog
list");
# CGRateS connection is still alive, set check to true
$sht(cgrconn=>check) = 1;
if $sht(cgrconn=>cgr) == $null {
sl_send_reply("503","Charging controller
unreachable");
exit;
}
jsonrpc_exec('{"jsonrpc":"2.0","id":1,
"method":"dlg.list","params":[]}');
xlog("L_INFO", "XLOG: $ci [CGR_DLG_LIST] Test1:
$jsonrpl(body)");
evapi_relay("{\"event\":\"CGR_DLG_LIST_REPLY\",
\"jsonrpl_body\":$jsonrpl(body)}");
}
During a higher number of calls Kamailio is generating ERROR
messages from evapi module. Here is the syslog:
Oct 30 12:02:15 kam-prod
/opt/ipgate/kamailio/sbin/kamailio[19512]: INFO: <script>: XLOG:
123 [CGR_DLG_LIST] Requested dialog list
Oct 30 12:02:15 kam-prod
/opt/ipgate/kamailio/sbin/kamailio[19512]: INFO: <script>:
Oct 30 12:02:15 kam-prod
/opt/ipgate/kamailio/sbin/kamailio[19512]: DEBUG: evapi
[evapi_dispatch.c:740]: _evapi_relay(): relaying event data [
Oct 30 12:02:15 kam-prod
/opt/ipgate/kamailio/sbin/kamailio[19512]: ERROR: evapi
[evapi_dispatch.c:764]: _evapi_relay(): cannot serialize event
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:
*We are expecting something like this when nobody is calling*
Oct 30 14:12:22 kam-test
/opt/ipgate/kamailio/sbin/kamailio[32090]: INFO: <script>: XLOG:
123 [CGR_DLG_LIST] Requested dialog list
Oct 30 14:12:22 kam-test
/opt/ipgate/kamailio/sbin/kamailio[32090]: INFO: <script>: XLOG:
123 [CGR_DLG_LIST] Test1: {
#011"jsonrpc":#011"2.0",
#011"result":#011[],
#011"id":#0111
}
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",
#011#011#011"jsonrpl_body":{
#011"jsonrpc":#011"2.0",
#011"result":#011[],
#011"id":#0111
}}] (96)
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",
#011#011#011"jsonrpl_body":{
#011"jsonrpc":#011"2.0",
#011"result":#011[],
#011"id":#0111
}},] (100)
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",
#011#011#011"jsonrpl_body":{
#011"jsonrpc":#011"2.0",
#011"result":#011[],
#011"id":#0111
}},] (100)
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 *pv_buffer* to really big size (2097152).
It looks like $jsonrpl(body) is not ready and everything concated
with it is not working.
||Any help or suggestion is welcomed. ||
||Sincerely Michal||
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--
Daniel-Constantin Mierla -- www.asipto.com <http://www.asipto.com>
www.twitter.com/miconda <http://www.twitter.com/miconda> --
www.linkedin.com/in/miconda <http://www.linkedin.com/in/miconda>
Kamailio World Conference - April 27-29, 2020, in Berlin -- www.kamailioworld.com
<http://www.kamailioworld.com>
_______________________________________________
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