[OpenSIPS-Users] Load balancer not able to send the calls to second sip server

[Tushar Jain]

Hi Robert,

Thanks for looking into my problem, here I am pasting my opensips.cfg file-
____________________________________________________________________

####### Global Parameters #########

debug=6
log_stderror=no
log_facility=LOG_LOCAL0

fork=yes
children=4

port=5060

listen=udp:x.x.x.x:5060

####### Modules Section ########

mpath="//lib/opensips/modules/"

loadmodule "db_mysql.so"
loadmodule "signaling.so"
loadmodule "sl.so"
loadmodule "tm.so"
loadmodule "rr.so"
loadmodule "maxfwd.so"
loadmodule "usrloc.so"
loadmodule "registrar.so"
loadmodule "textops.so"
loadmodule "mi_fifo.so"
loadmodule "uri.so"
loadmodule "xlog.so"
loadmodule "acc.so"
loadmodule "siptrace.so"
loadmodule "auth.so"
loadmodule "auth_db.so"
loadmodule "alias_db.so"
loadmodule "domain.so"
loadmodule "permissions.so"
loadmodule "group.so"
loadmodule "drouting.so"
loadmodule "avpops.so"
loadmodule "dialplan.so"
loadmodule "aaa_radius.so"
loadmodule "dialog.so"
loadmodule "load_balancer.so"

#------ avpops params -----
modparam("avpops", "db_url", "mysql://opensips:opensipsrw@localhost
/opensips")
modparam("avpops", "avp_table", "usr_preferences")

#------ load the dpid field to a pseudo-variable $avp(s:dpid) ------
modparam("auth_db", "load_credentials", "$avp(s:rpid)=rpid
;$avp(s:countrycode)=contrycode;$avp(s:areacode)=areacode")
modparam("dialplan", "db_url","mysql://opensips:opensipsrw@localhost
/opensips")

## attribute of the matched line will be store in the $avp(s:dest)
modparam("dialplan", "attrs_pvar", "$avp(s:dest)")

# ----- drouting params -----
#modparam("drouting", "sort_order", 0)
modparam("drouting", "use_domain", 1)
modparam("drouting","db_url", "mysql://opensips:opensipsrw@localhost
/opensips")
modparam("drouting", "probing_interval", 60)
modparam("drouting", "probing_from", "sip:pinger at x.x.x.x")
modparam("drouting", "probing_method", "OPTIONS")
modparam("drouting", "probing_reply_codes", "501, 403, 404")

# ----- Group ----
modparam("group","db_url","mysql://opensips:opensipsrw@localhost/opensips")

# ----- mi_fifo params -----
modparam("mi_fifo", "fifo_name", "/tmp/opensips_fifo")
modparam("mi_fifo", "fifo_mode", 0666)
modparam("dialog", "dlg_flag", 13)
modparam("dialog", "db_mode", 1)
modparam("dialog", "db_url", "mysql://opensips:opensipsrw@localhost
/opensips")
modparam("dialog", "timeout_avp", "$avp(i:30)")
modparam("dialog", "default_timeout", 3600)


# ----- Load Balancer -----
modparam("load_balancer", "db_url","mysql://opensips:opensipsrw@localhost
/opensips")
modparam("load_balancer", "probing_interval", 60)
modparam("load_balancer", "probing_method", "INFO")
modparam("load_balancer", "probing_from", "sip:1000 at x.x.x.x")
modparam("load_balancer", "db_table", "load_balancer")
modparam("load_balancer", "probing_reply_codes", "501, 403, 404")

# ----- registrar params -----
/* uncomment the next line not to allow more than 10 contacts per AOR */
#modparam("registrar", "max_contacts", 10)


# ----- usrloc params -----

modparam("usrloc", "db_mode",   0)

/* uncomment the following lines if you want to enable DB persistency
   for location entries */
modparam("usrloc", "db_mode",   2)
modparam("usrloc", "db_url", "mysql://opensips:opensipsrw@localhost
/opensips")


# ----- uri params -----
modparam("uri", "use_uri_table", 0)


# ----- acc params -----
/* what sepcial events should be accounted ? */
modparam("acc", "early_media", 0)
modparam("acc", "report_ack", 0)
modparam("acc", "report_cancels", 0)
modparam("acc", "detect_direction", 0)
modparam("acc", "failed_transaction_flag", 1)
modparam("acc", "log_level", 1)
modparam("acc", "log_flag", 1)
modparam("acc", "log_missed_flag", 1)
modparam("acc", "db_flag", 1)
modparam("acc", "db_missed_flag", 2)
modparam("acc", "aaa_url", "radius:/etc/radiusclient-ng/radiusclient.conf")
# Point the configuration file
modparam("acc", "service_type", 15) # Set the service_type to 15
modparam("acc", "aaa_flag", 1)
modparam("acc", "aaa_missed_flag", 1)

# ----- auth_db params -----
/* uncomment the following lines if you want to enable the DB based
   authentication */

modparam("auth_db", "calculate_ha1", yes)
modparam("auth_db", "password_column", "password")

modparam("auth_db", "db_url","mysql://opensips:opensipsrw@localhost
/opensips")
modparam("auth_db", "load_credentials", "")

####### Routing Logic ########

# main request routing logic

route{

setflag(22);
        sip_trace();

if (!mf_process_maxfwd_header("10")) {
sl_send_reply("483","Too Many Hops");
exit;
}

#---- Sequential requests section ----#

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
} else if (is_method("INVITE")) {
# even if in most of the cases is useless, do RR for
# re-INVITEs alos, as some buggy clients do change route set
# during the dialog.
record_route();
}
# route it out to whatever destination was set by loose_route()
# in $du (destination URI).
route(1);
} else {
if ( is_method("ACK") ) {
if ( t_check_trans() ) {
t_relay();
exit;
} else {
exit;
}
}
sl_send_reply("404","Not here");
}
exit;
}


#---- initial requests section ----#

# CANCEL processing
if (is_method("CANCEL"))
{
if (t_check_trans())
t_relay();
exit;
}

t_check_trans();

if (!(method=="REGISTER") && from_uri==myself) /*no multidomain version*/
if (!(method=="REGISTER") && is_from_local())  /*multidomain version*/
{
if (!proxy_authorize("", "subscriber")) {
proxy_challenge("", "0");
exit;
}
if (!db_check_from()) {
sl_send_reply("403","Forbidden auth ID");
exit;
}
 consume_credentials();
# caller authenticated
}


#------------------ preloaded route checking ---------------------#

if (loose_route()) {
xlog("L_ERR",
"Attempt to route with preloaded Route's [$fu/$tu/$ru/$ci]");
if (!is_method("ACK"))
sl_send_reply("403","Preload Route denied");
exit;
}

# record routing
if (!is_method("REGISTER|MESSAGE"))
record_route();

# account only INVITEs
if (is_method("INVITE")) {
setflag(1); # do accounting
setflag(2); # Account Missed Calls
setflag(3); # Account Failed Transactions
}
if (!uri==myself)


#---- Routing to external domains ----#


## replace with following line if multi-domain support is used
if (!is_uri_host_local())
{
if(is_from_local()) {
route(1);
} else {
sl_send_reply("403","Not here");
}
}
append_hf("P-hint: outbound\r\n");

if (is_method("PUBLISH"))
{
sl_send_reply("$rc", "Service Unavailable");
exit;
}

if (is_method("REGISTER"))
{
# authenticate the REGISTER requests (uncomment to enable auth)
if (!www_authorize("", "subscriber"))
{
www_challenge("", "0");
exit;
}
 if (!db_check_to())
{
sl_send_reply("403","Forbidden auth ID");
exit;
}

if (!save("location"))
sl_reply_error();

exit;
}

if ($rU==NULL) {
# request with no Username in RURI
sl_send_reply("484","Address Incomplete");
exit;
}

# apply DB based aliases (uncomment to enable)
alias_db_lookup("dbaliases");


if(!dp_translate("0","$rU/$rU")){
  send_reply("420", "Invalid Destination");
  exit;
}
xlog("$avp(s:dest)");
if ($avp(s:dest)=="usrloc") {
  #Route to usrloc
  route(3);
}
if ($avp(s:dest)=="pstn") {
  #route to pstn
  route(4);
}
if ($avp(s:dest)=="media") {
  #route to media server
  route(5);
}
send_reply("420", "Invalid Extension");
  exit;
      }


route[1] {


          load_balance("2","sip");
        }

        # LB function returns negative if no suitable destination (for
requested resources) is found,
        # or if all destinations are full
        if ($retcode<0) {
             sl_send_reply("500","Service full");
             exit;
        }

        xlog("Selected destination is: $du\n");

        # send it out
        if (!t_relay()) {
                sl_reply_error();
        }
#        }


# for INVITEs enable some additional helper routes


if (is_method("INVITE")) {
t_on_branch("2");
t_on_reply("2");
t_on_failure("1");
     }
     if (!t_relay()) {
sl_reply_error();
     };
     exit;


xlog("Selected destination is: $du\n");

        # send it out
if (!t_relay()) {
sl_reply_error();
}
}

#Route for user lookups

route[3]{
if (!lookup("location", "m")) {
switch ($retcode) {
case -1:
case -3:
t_newtran();
t_reply("404", "Not Found");
exit;
case -2:
sl_send_reply("405", "Method Not Allowed");
exit;
}
      }
# when routing via usrloc, log the missed calls also
setflag(2);
route(1);
}

route[4] {
#---- PSTN route ----#
if(!do_routing()){
send_reply("503", "No rules found matching the URI prefix");
exit;
}
# flag 10 - route to pstn
setflag(10);
route(1);
}

route[5] {
#---- Route to media servers ----#
xlog("route to media servers");
}
branch_route[2] {
xlog("new branch at $ru\n");
}
onreply_route[2] {
xlog("incoming reply\n");
}
failure_route[1] {
if (t_was_cancelled()) {
exit;
}
if(isflagset(10)){
if (use_next_gw()) {
xlog ("next gateway $ru \n");
t_on_failure("1");
t_relay();
exit;
}
else {
t_reply("$rc", "Service not available, no more gateways");
#t_reply("$T_reply_code");
exit;
}
}
}

Regards
Tushar
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