dispatcher [dispatch.c:1416]: ds_load_remove(): cannot find load for (from asterisk call-id) - sr-users

4 Apr 2016

Hi

I am new to Kamailio and i am just trying to setup a kamailio (v4.2.3)
dispatcher to distribute calls to 2 asterisk using the call load
distribution algorithm (alg 10). I started to test and see how all it is
working and in the logs appears that the call load record it cannot be
found.

- ERROR: dispatcher [dispatch.c:1416]: ds_load_remove(): cannot find load
for (call id generated by asterisk)

I am getting this error  trying a 2 call leg conversation when asterisk is
creating the BYE message destinated to the callee after receiving a BYE
message from the caller, and the BYE message by Asterisk reach Kamailio to
then apply the ds_load_update function

...
 From what i understand about ds_load_update it is that
it sets the load to an specific destination if Kamailio receives a 2xx reply of an
INVITE
message, and removes it if Kamailio receives a BYE message based from the
Call-id received in that message, where it is actually failing in my
implementation at the moment

Here are the blocks of code of the dispatcher parameters and where the
function ds_load_update() is being used:
#!ifdef WITH_LOADBALANCE

#Parameters using Dispatcher from DB
# ----------
modparam("dispatcher", "db_url", DBURL)
modparam("dispatcher", "table_name", "dispatcher")
# ----------

#Enabling failover mechanism
# -----------
modparam("dispatcher", "flags", 2)
# -----------

#Setting dispatcher parameters in AVP
# -----------
modparam("dispatcher", "dst_avp", "$avp(AVP_DST)")
modparam("dispatcher", "grp_avp", "$avp(AVP_GRP)")
modparam("dispatcher", "cnt_avp", "$avp(AVP_CNT)")
modparam("dispatcher", "dstid_avp", "$avp(dsdstid)")
# -----------

#Setting dispatcher result in PV variables
# -----------
modparam("dispatcher", "attrs_pvname", "$var(attrs)")
# -----------

#Enabling dispatcher algorithm according to call loads
# -----------
modparam("dispatcher", "ds_hash_size",8)
modparam("dispatcher", "ds_hash_expire", 3600)
modparam("dispatcher", "ds_hash_initexpire", 60)
# -----------

# Setting parameters for probing dispatcher destinations
# -----------
modparam("dispatcher", "ds_ping_interval", 20)
modparam("dispatcher", "ds_ping_from",
"sip:kamailio1@<Kamailio IP>")
modparam("dispatcher", "ds_probing_mode", 1)
modparam("dispatcher", "ds_probing_threshhold", 2)
modparam("dispatcher", "ds_ping_reply_codes",
"class=2;code=480;code=404")
# -----------

...
route[WITHINDLG] {
 if (has_totag()) {
  # sequential request withing a dialog should
  # take the path determined by record-routing

#!ifdef WITH_LOADBALANCE
        if(is_method("BYE|CANCEL")){
                xlog("L_ERROR","UBICAR BYE ds_load_update  requesturi=$ru
from=$fu method=$rm callid=$ci to=$tu reply=$mt rrcode=$rr rcode=$rs\n");
                ds_load_update();
        }
#!endif
...
}

...

onreply_route[MANAGE_REPLY] {
#!ifdef WITH_LOADBALANCE
if(is_method("INVITE")) {
        if(status=~"2[0-9][0-9]") {
                xlog("L_ERROR","UBICAR setting ds_load_update
 requesturi=$ru from=$fu method=$rm callid=$ci to=$tu reply=$mt rrcode=$rr
rcode=$rs");
                ds_load_update();
        }else if(status=~"[3-7][0-9][0-9]") {
                ds_load_unset();
        }
}
#!endif

if(status=~"[12][0-9][0-9]"){
        route(NATMANAGE);
 }
}

This is what i am getting from logs after the 2 call legs conversation
completes:

kam1 /usr/sbin/kamailio[4082]: ERROR: <script>: UBICAR: FROMASTERISK
70175143146f92975a5bff8876435911(a)192.168.10.194

kam1 /usr/sbin/kamailio[4082]: ERROR: <script>: UBICAR setting
ds_load_update  requesturi=<null> from=sip:103@192.168.10.194 method=INVITE
callid=28d0f6e71625c9e87baec07f46167863(a)192.168.10.194 to=
sip:104@192.168.10.194 reply=2 rrcode=OK rcode=200

kam1 /usr/sbin/kamailio[4083]: ERROR: <script>: UBICAR setting
ds_load_update  requesturi=<null> from=sip:103@192.168.10.194:5060
method=INVITE callid=1-3692(a)192.168.20.2 to=sip:104@192.168.10.194:5060
reply=2 rrcode=OK rcode=200

kam1 /usr/sbin/kamailio[4084]: ERROR: <script>: UBICAR BYE ds_load_update
 requesturi=sip:104@192.168.10.190:5060 from=sip:103@192.168.30.1:5060
method=BYE callid=1-3692(a)192.168.20.2 to=sip:104@192.168.30.1:5060 reply=1
rrcode=<null> rcode=<null>

kam1 /usr/sbin/kamailio[4085]: ERROR: <script>: UBICAR BYE ds_load_update
 requesturi=sip:104@192.168.30.2:22523;transport=UDP from=
sip:103@192.168.10.194 method=BYE callid=
28d0f6e71625c9e87baec07f46167863(a)192.168.10.194 to=sip:104@192.168.10.194
reply=1 rrcode=<null> rcode=<null>

kam1 /usr/sbin/kamailio[4085]: ERROR: dispatcher [dispatch.c:1416]:
ds_load_remove(): cannot find load for (
28d0f6e71625c9e87baec07f46167863(a)192.168.10.194)

Kamailio IP: 192.168.10.194

Asterisk IP:

+----+-------+-------------------------+-------+----------+-------------------------------+-------------+
| id | setid | destination             | flags | priority | attrs
              | description |
+----+-------+-------------------------+-------+----------+-------------------------------+-------------+
|  1 |     0 | sip:192.168.10.190:5060 |     2 |        0 |
duid=PBX1;my=pbx1;maxload=200 | pbx1        |
|  2 |     0 | sip:192.168.10.191:5060 |     2 |        0 |
duid=PBX2;my=pbx2;maxload=200 | pbx2        |
+----+-------+-------------------------+-------+----------+-------------------------------+-------------+