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")
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 <cars...@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 <cha...@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 <cars...@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 <cha...@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-...@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:cars...@ng-voice.com
> >>
> >> Office +49 40 34927219
> >> Fax +49 40 34927220
> >>
> >> 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-...@lists.sip-router.org
> >> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
> >
> >
> >
> > _______________________________________________
> > sr-dev mailing list
> > sr-...@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:cars...@ng-voice.com
>
> Office +49 40 34927219
> Fax +49 40 34927220
>
> 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-...@lists.sip-router.org
> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-dev
>
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