[SR-Users] Dispatcher alg:7 not working accordingly

Daniel-Constantin Mierla miconda at gmail.com
Mon Jun 4 08:52:45 CEST 2012


Hello,

do you get any errors in the log?

Be aware that hash functions may return same code for different input 
values. A hash function is guaranteed to return same code for same  
input value, but there can be collisions of codes for different values.

Cheers,
Daniel

On 6/3/12 3:41 PM, SamyGo wrote:
> Hello,
>
> I'm having trouble using algorithm 7 in dispatcher module. Here is my 
> kamailio version. The problem is that despite multiple dispatcher 
> entries corresponding to one set all calls go only to only one 
> destination.
>
>
> [root at control1 ~]# kamailio -V
> version: kamailio 3.2.3 (x86_64/linux) 59f87e
> flags: STATS: Off, USE_IPV6, USE_TCP, USE_TLS, TLS_HOOKS, 
> USE_RAW_SOCKS, DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, 
> SHM_MMAP, PKG_MALLOC, DBG_QM_MALLOC, USE_FUTEX, 
> FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE, USE_DNS_FAILOVER, USE_NAPTR, 
> USE_DST_BLACKLIST, HAVE_RESOLV_RES
> ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, 
> MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 4MB
> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
> id: 59f87e
> compiled on 18:04:08 Apr 19 2012 with gcc 4.1.2
> [root at control1 ~]#
>
> Here is the dipacther module params.
>
>
>
> # ------- Load-balancer params ------
> modparam("dispatcher", "db_url", DBURL)
> modparam("dispatcher", "table_name", "dispatcher")
> modparam("dispatcher", "setid_col", "setid")
> modparam("dispatcher", "destination_col", "destination")
> modparam("dispatcher", "force_dst", 1)
> modparam("dispatcher", "flags", 3)
> modparam("dispatcher", "dst_avp", "$avp(i:271)")
> modparam("dispatcher", "cnt_avp", "$avp(i:273)")
> modparam("dispatcher", "ds_ping_from", "sip:proxy at 109.XXX.2XX.XX")
> modparam("dispatcher", "ds_ping_interval",15)
> modparam("dispatcher", "ds_probing_mode", 1)
> modparam("dispatcher", "ds_ping_reply_codes", 
> "class=2;code=403;code=404;code=484;class=3")
> modparam("dispatcher", "hash_pvar", "$avp(i:274)")
> modparam("dispatcher", "ds_hash_size", 9)
> modparam("dispatcher", "ds_hash_initexpire", 60)
>
>
>
> Below is the function call based on avp(i:274)
>
>
>
> avp_db_query("select uid from uid_did_map where accountcode = 
> '$fU'","$avp(i:274)");
> xlog("L_INFO","$rm from $fu (IP:$si:$sp) --------- 
> UID:'$avp(i:274)-----------'\n");
>         ds_load_update();
>         if(!ds_select_dst("1","7")) {
>                         sl_send_reply("500", "No destination available");
>                         xlog("route[MAIN] : $rm : No destinations 
> available for $rd");
>                         exit;
>         }
>
>
> I'm getting two different values for avp(i:274) {26,29} but the 
> destination are not hashed on its base.
>
> Please help.
>
> Regards,
> Sammy G.
>
>
>
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-- 
Daniel-Constantin Mierla - http://www.asipto.com
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Kamailio Advanced Training, Seattle, USA, Sep 23-26, 2012 - http://asipto.com/u/katu
Kamailio Practical Workshop, Netherlands, Sep 10-12, 2012 - http://asipto.com/u/kpw



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