Re: [SR-Users] [sr-dev] kamailio is returning 500

Hello,

On 2/27/13 4:30 PM, chanea wrote:

Hi Carsten,

Thanks for reply. No idea how this happen but after increase the shared memory used to run Kamailio , this 500 issue is gone now.

BTW, REGISTER being routed seems wrong in my config file , therefore after load balancing , client cannot reach each other by MESSAGE.

Client --- > Kamailio LB --->Sip01 \ ---->Sip02

Any idea??

probably register ended on one proxy and the invite/message to it to the other one. So you have to change the routing logic in the proxies so that after a failed location lookup, it will send to the other proxy. There, if its a failure again, reply 404 not found.

Cheers, Daniel

Best Regards,

chanea

On Tue, Feb 26, 2013 at 10:39 PM, Carsten Bock <carsten@ng-voice.com mailto:carsten@ng-voice.com> wrote:

Hi,

i see no point in your config, where the 500 should come from. It must
come from the servers you are loadbalancing for.

Kind regards,
Carsten

2013/2/26 chanea <chanea@gmail.com <mailto:chanea@gmail.com>>:
> Hi Carsten,
>
> Thanks again for your kind reply.
> I am quite newbie to kamailio,  and I dont see why the load
balancer is
> replying "500".
>
> It will be great appreciated if you can point out what i am
doing wrong in
> my config file as below.
> Actually, there is another issue for the setting below is that
it cannot
> load balancing the "REGISTER" correctly.
>
> best regards,
>
> chanea
>
> ==============================================================
>
> ####### Global Parameters #########
> #!define WITH_NAT
>
>
>
> # - flags
> #   FLT_ - per transaction (message) flags
> # FLB_ - per branch flags
> #!define FLT_ACC 1
> #!define FLT_ACCMISSED 2
> #!define FLT_ACCFAILED 3
> #!define FLT_NATS 5
>
> #!define FLB_NATB 6
> #!define FLB_NATSIPPING 7
>
> ####### Global Parameters #########
>
> debug=-3
> log_stderror=no
>
> memdbg=5
> memlog=5
>
> log_facility=LOG_LOCAL0
>
> fork=yes
> children=8
>
> disable_tcp=yes
>
> auto_aliases=no
>
> port=5060
>
>
> sip_warning=no
>
> ####### Modules Section ########
>
> # set paths to location of modules
> #!ifdef LOCAL_TEST_RUN
> mpath="modules_k:modules"
> #!else
>
mpath="/usr/local/lib64/kamailio/modules_k/:/usr/local/lib64/kamailio/modules/"
> #!endif
> loadmodule "db_mysql.so"
> loadmodule "mi_fifo.so"
> loadmodule "kex.so"
> loadmodule "tm.so"
> loadmodule "tmx.so"
> loadmodule "sl.so"
> loadmodule "rr.so"
> loadmodule "usrloc.so"
> loadmodule "pv.so"
> loadmodule "maxfwd.so"
> loadmodule "textops.so"
> loadmodule "siputils.so"
> loadmodule "xlog.so"
> loadmodule "sanity.so"
> loadmodule "ctl.so"
> loadmodule "mi_rpc.so"
> loadmodule "acc.so"
> loadmodule "dispatcher.so"
>
> #!ifdef WITH_NAT
> loadmodule "nathelper.so"
> loadmodule "rtpproxy.so"
> #!endif
>
>
> # ----- mi_fifo params -----
> modparam("mi_fifo", "fifo_name", "/tmp/kamailio_fifo")
>
>
> # ----- rr params -----
> # add value to ;lr param to cope with most of the UAs
> modparam("rr", "enable_full_lr", 1)
> # do not append from tag to the RR (no need for this script)
> modparam("rr", "append_fromtag", 0)
>
>
> # ----- acc params -----
> modparam("acc", "log_flag", 1)
> modparam("acc", "failed_transaction_flag", 3)
> modparam("acc", "log_extra",
>
"src_user=$fU;src_domain=$fd;dst_ouser=$tU;dst_user=$rU;dst_domain=$rd;src_ip=$si")
>
> # ----- tm params -----
> modparam("tm", "fr_timer", 10000)
> modparam("tm", "fr_inv_timer", 40000)
>
>
> #!ifdef WITH_NAT
> # ----- rtpproxy params -----
> #modparam("rtpproxy", "rtpproxy_sock", "udp:127.0.0.1:7722
<http://127.0.0.1:7722>")
> modparam("rtpproxy", "rtpproxy_sock", "udp:{myipaddr}:22222")
> # ----- nathelper params -----
> modparam("nathelper", "natping_interval", 600)
> modparam("nathelper", "ping_nated_only", 1)
> modparam("nathelper", "sipping_bflag", FLB_NATSIPPING)
> modparam("nathelper", "sipping_from", "sip:pinger@{myipaddr}")
>
> # params needed for NAT traversal in other modules
> modparam("nathelper|registrar", "received_avp", "$avp(RECEIVED)")
> modparam("usrloc", "nat_bflag", FLB_NATB)
> #!endif
>
>
> # ----- dispatcher params -----
> modparam("dispatcher", "db_url",
> "mysql://{mydbsetting}")
> modparam("dispatcher", "table_name", "dispatcher")
> modparam("dispatcher", "flags", 2)
> modparam("dispatcher", "dst_avp", "$avp(AVP_DST)")
> modparam("dispatcher", "grp_avp", "$avp(AVP_GRP)")
> modparam("dispatcher", "cnt_avp", "$avp(AVP_CNT)")
>
> ####### Routing Logic ########
>
>
> # main request routing logic
>
> route {
>
> # per request initial checks
> route(REQINIT);
>
> # NAT detection
> route(NAT);
>
> # handle requests within SIP dialogs
> route(WITHINDLG);
>
> ### only initial requests (no To tag)
>
> # CANCEL processing
> if (is_method("CANCEL"))
> {
> if (t_check_trans())
> t_relay();
> exit;
> }
>
> t_check_trans();
>
> # record routing for dialog forming requests (in case they are
routed)
> # - remove preloaded route headers
> remove_hf("Route");
> if (is_method("INVITE|SUBSCRIBE"))
> record_route();
>
> # account only INVITEs
> if (is_method("INVITE"))
> {
> setflag(1); # do accounting
> }
>
> # dispatch destinations
> route(DISPATCH);
>
> route(RELAY);
> }
>
>
> route[RELAY] {
> #!ifdef WITH_NAT
> if (check_route_param("nat=yes")) {
> setbflag(FLB_NATB);
> }
> if (isflagset(FLT_NATS) || isbflagset(FLB_NATB)) {
> route(RTPPROXY);
> }
> #!endif
> if (!t_relay()) {
> sl_reply_error();
> }
> exit;
> }
>
>
> # Per SIP request initial checks
> route[REQINIT] {
> if (!mf_process_maxfwd_header("10")) {
> sl_send_reply("483","Too Many Hops");
> exit;
> }
>
> if(!sanity_check("1511", "7"))
> {
> xlog("Malformed SIP message from $si:$sp\n");
> exit;
> }
> }
>
> # Caller NAT detection route
> route[NAT] {
> #!ifdef WITH_NAT
> force_rport();
> if (nat_uac_test("19")) {
> #xlog("L_INFO","ALERT: ua is behind NAT (ru:$ru)(IP:$si:$sp)\n");
>
> if (method=="REGISTER") {
> fix_nated_register();
> } else {
> fix_nated_contact();
> }
> setflag(FLT_NATS);
> }
> #!endif
> return;
> }
>
> # RTPProxy control
> route[RTPPROXY] {
> #!ifdef WITH_NAT
> if (is_method("BYE")) {
> unforce_rtp_proxy();
> } else if (is_method("INVITE")){
> force_rtp_proxy();
> }
> if (!has_totag()) add_rr_param(";nat=yes");
> #!endif
> return;
> }
>
>
>
> # Handle requests within SIP dialogs
> route[WITHINDLG] {
> if (has_totag()) {
> # sequential request withing a dialog should
> # take the path determined by record-routing
> if (loose_route()) {
> if (is_method("BYE")) {
> setflag(1); # do accounting ...
> setflag(3); # ... even if the transaction fails
> }
> route(RELAY);
> } else {
> if ( is_method("ACK") ) {
> if ( t_check_trans() ) {
> # non loose-route, but stateful ACK;
> # must be ACK after a 487 or e.g. 404 from upstream server
> t_relay();
> exit;
> } else {
> # ACK without matching transaction ... ignore and discard.
> exit;
> }
> }
> sl_send_reply("404","Not here");
> }
> exit;
> }
> }
>
> # Dispatch requests
> route[DISPATCH] {
> # round robin dispatching on gateways group '1'
> if(!ds_select_dst("1", "0"))
> {
> send_reply("404", "No destination");
> exit;
> }
> xlog("L_INFO", "--- SCRIPT: going to <$ru> via <$du>\n");
> t_on_failure("RTF_DISPATCH");
> return;
> }
>
> # Sample failure route
> failure_route[RTF_DISPATCH] {
> if (t_is_canceled()) {
> exit;
> }
> # next DST - only for 500 or local timeout
> if (t_check_status("500")
> or (t_branch_timeout() and !t_branch_replied()))
> {
> if(ds_next_dst())
> {
> t_on_failure("RTF_DISPATCH");
> route(RELAY);
> exit;
> }
> }
> }
> =================================================================
>
>
>
> On Tue, Feb 26, 2013 at 8:32 PM, Carsten Bock
<carsten@ng-voice.com <mailto:carsten@ng-voice.com>> wrote:
>>
>> Hi,
>>
>> the dispatcher module doesn't create "500 Internal Server
Error" replies.
>> There must be another source for your error; most likely not the
>> Kamailio Loadbalancer.
>>
>> Kind regards,
>> Carsten
>>
>> 2013/2/26 chanea <chanea@gmail.com <mailto:chanea@gmail.com>>:
>> > Hi Carsten,
>> >
>> > Thanks for your quick reply.
>> > The "500" is generated by the Kamailio server which is used
as Load
>> > balancer
>> > ( using dispatcher module).
>> >
>> > I dont see any 500 number in my kamailio.cfg in the load balancer
>> > kamailio.
>> > Should I go deep into the dispatcher module itself?
>> >
>> >
>> > Unluckily I cannot check the reason by checking the syslog
since this
>> > only
>> > happen when thousands of request come in at the same time.
>> >
>> > chanea
>> >
>> >
>> >
>> > On Tue, Feb 26, 2013 at 7:24 PM, Carsten Bock
<carsten@ng-voice.com <mailto:carsten@ng-voice.com>>
>> > wrote:
>> >>
>> >> Hi,
>> >>
>> >> can you see, why the Kamailio is returning a "500 Server
internal
>> >> error"? This response must be either created by some module
or by some
>> >> upstream server (e.g. in case of loadbalancing).
>> >> Kamailio itself would not create such response, you should
(if at all)
>> >> find the answer in the logs...
>> >>
>> >> Kind regards,
>> >> Carsten
>> >>
>> >> 2013/2/26 chanea <chanea@gmail.com <mailto:chanea@gmail.com>>:
>> >> > Dear all
>> >> >
>> >> > While lots of request come to my Kamailio 3.1.x in the
same time ,
>> >> > server
>> >> > is returning "500, Server Internal Error" to some of the
request.
>> >> >
>> >> > What should i do if i want to reduce the number of "500"
response?
>> >> >
>> >> >
>> >> >
>> >> > chanea
>> >> >
>> >> > _______________________________________________
>> >> > sr-dev mailing list
>> >> > sr-dev@lists.sip-router.org
<mailto:sr-dev@lists.sip-router.org>
>> >> > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
>> >> >
>> >>
>> >>
>> >>
>> >> --
>> >> Carsten Bock
>> >> CEO (Geschäftsführer)
>> >>
>> >> =============================================================
>> >> Visit us on the Kamailio World 2013, 16./17. April 2013
>> >> => http://conference.kamailio.com/k01/                      
      See
>> >> you there!
>> >> =============================================================
>> >>
>> >> ng-voice GmbH
>> >> Schomburgstr. 80
>> >> D-22767 Hamburg / Germany
>> >>
>> >> http://www.ng-voice.com
>> >> mailto:carsten@ng-voice.com <mailto:carsten@ng-voice.com>
>> >>
>> >> Office +49 40 34927219 <tel:%2B49%2040%2034927219>
>> >> Fax +49 40 34927220 <tel:%2B49%2040%2034927220>
>> >>
>> >> Sitz der Gesellschaft: Hamburg
>> >> Registergericht: Amtsgericht Hamburg, HRB 120189
>> >> Geschäftsführer: Carsten Bock
>> >> Ust-ID: DE279344284
>> >>
>> >> Hier finden Sie unsere handelsrechtlichen Pflichtangaben:
>> >> http://www.ng-voice.com/imprint/
>> >>
>> >> _______________________________________________
>> >> sr-dev mailing list
>> >> sr-dev@lists.sip-router.org <mailto:sr-dev@lists.sip-router.org>
>> >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
>> >
>> >
>> >
>> > _______________________________________________
>> > sr-dev mailing list
>> > sr-dev@lists.sip-router.org <mailto:sr-dev@lists.sip-router.org>
>> > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
>> >
>>
>>
>>
>> --
>> Carsten Bock
>> CEO (Geschäftsführer)
>>
>> =============================================================
>> Visit us on the Kamailio World 2013, 16./17. April 2013
>> => http://conference.kamailio.com/k01/                        
    See
>> you there!
>> =============================================================
>>
>> ng-voice GmbH
>> Schomburgstr. 80
>> D-22767 Hamburg / Germany
>>
>> http://www.ng-voice.com
>> mailto:carsten@ng-voice.com <mailto:carsten@ng-voice.com>
>>
>> Office +49 40 34927219 <tel:%2B49%2040%2034927219>
>> Fax +49 40 34927220 <tel:%2B49%2040%2034927220>
>>
>> Sitz der Gesellschaft: Hamburg
>> Registergericht: Amtsgericht Hamburg, HRB 120189
>> Geschäftsführer: Carsten Bock
>> Ust-ID: DE279344284
>>
>> Hier finden Sie unsere handelsrechtlichen Pflichtangaben:
>> http://www.ng-voice.com/imprint/
>>
>> _______________________________________________
>> sr-dev mailing list
>> sr-dev@lists.sip-router.org <mailto:sr-dev@lists.sip-router.org>
>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
>
>
>
> _______________________________________________
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>



--
Carsten Bock
CEO (Geschäftsführer)

=============================================================
Visit us on the Kamailio World 2013, 16./17. April 2013
=> http://conference.kamailio.com/k01/                             See
you there!
=============================================================

ng-voice GmbH
Schomburgstr. 80
D-22767 Hamburg / Germany

http://www.ng-voice.com
mailto:carsten@ng-voice.com <mailto:carsten@ng-voice.com>

Office +49 40 34927219 <tel:%2B49%2040%2034927219>
Fax +49 40 34927220 <tel:%2B49%2040%2034927220>

Sitz der Gesellschaft: Hamburg
Registergericht: Amtsgericht Hamburg, HRB 120189
Geschäftsführer: Carsten Bock
Ust-ID: DE279344284

Hier finden Sie unsere handelsrechtlichen Pflichtangaben:
http://www.ng-voice.com/imprint/

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