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 <[email protected]> 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: > > 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 > > > > > > _______________________________________________ > Kamailio (SER) - Users Mailing > [email protected]https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users > > -- > Daniel-Constantin Mierla -- www.asipto.comwww.twitter.com/miconda -- > www.linkedin.com/in/miconda > Kamailio World Conference - April 27-29, 2020, in Berlin -- > www.kamailioworld.com > > _______________________________________________ > Kamailio (SER) - Users Mailing List > [email protected] > https://lists.kamailio.org/cgi-bin/mailman/listinfo/sr-users >
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