4 Jun
2012
4 Jun
'12
6:16 a.m.
Thanks Sir,
Thats what I expected. Do you think this will change if I use only two
values with huge difference in each other, lets say {26000,29000} ?
Regards,
Sammy
On Mon, Jun 4, 2012 at 3:05 PM, Carsten Bock <carsten(a)ng-voice.com> wrote:
Hi,
this functionality uses a generic "hash" function to generate an
Integer-Value of the PVAR and then reduces this to the number hosts in
your destination set.
If you have only using two different values of the PVAR and only two
hosts in the dispatcher list, it can likely happen, that the same host
is choosen. You should try a wider range of values for your PVAR...
(e.g. try 1000 different values), then you should see a distribution.
Carsten
2012/6/4 SamyGo <govoiper(a)gmail.com>om>:
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Hi,
No, nothing at all. I haven't went too deep into debug logs but no
internal
error was appearing. Everything was as calm as
ever and I only get one
destination uri.
So maybe what I'm getting from your email is that , for this to work the
way
I expect is to have more unique and random values
in my hash_pvar to get
the
required functionality.
Thanks once again,
BR
SG
On Mon, Jun 4, 2012 at 11:52 AM, Daniel-Constantin Mierla
<miconda(a)gmail.com> wrote:
>
> 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@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@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@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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