Hi

Are you using ds_select_dst("1", "10"); somewhere ?

You have to check Asterisk is responding to OPTIONS as dispatcher considered UP when 200 OK from Asterisk or SIP Gateway is received.. and not if not received.

I have used dispatcher but not with 10 option on algo...

BR

2016-04-04 8:07 GMT+02:00 TEG AMJG <tegamjg@gmail.com>:

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@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@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@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@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@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@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        |

+----+-------+-------------------------+-------+----------+-------------------------------+-------------+

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