[SR-Users] Failover with Dispatcher Module

alirsm alirsm at protonmail.com
Thu Feb 4 19:54:51 CET 2021


Hi

I have setup dispatcher failover on Kamailio 5.1 as below. If destination X.X.X.X is down, traffic should be routed to Y.Y.Y.Y.
The failover is working but every time after 30 sec Timeout. Is there a way to setup health check properly so the failed destination can be ignored while it is down?

Your help is greatly appreciated,
AL

# dispatcher.list
1 sip:X.X.X.X:5060 0 0
1 sip:Y.Y.Y.Y:5060 0 0

# ----- dispatcher params -----
modparam("dispatcher", "list_file", "/usr/local/etc/kamailio/dispatcher.list")
modparam("dispatcher", "flags", 2)
modparam("dispatcher", "ds_ping_interval", 10)
modparam("dispatcher", "dst_avp", "$avp(AVP_DST)")
modparam("dispatcher", "grp_avp", "$avp(AVP_GRP)")
modparam("dispatcher", "cnt_avp", "$avp(AVP_CNT)")
modparam("dispatcher", "sock_avp", "$avp(AVP_SOCK)")
modparam("dispatcher", "ds_probing_mode", 1)
modparam("dispatcher", "ds_inactive_threshold", 4)
modparam("dispatcher", "ds_ping_latency_stats", 1)
modparam("dispatcher", "ds_probing_threshold", 1)

# Dispatch requests
route[DISPATCH] {
if(!ds_select_dst("1", "4")) {
send_reply("503", "No destination");
exit;
}
t_on_failure("DISPATCH_FAILOVER");
route(RELAY);
exit;
}

# Failure Route
failure_route[DISPATCH_FAILOVER]{
if (t_is_canceled()) exit;
if(!ds_next_dst()) {
send_reply("503", "Out of gateways");
exit;
}
t_on_failure("DISPATCHER_FAILOVER");
t_relay();
}
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