Sorry for late reply: this wasn't very helpful. I think Hashing algo code needs to get bit smarter. If there is any possibility can you please let me know. !
On Mon, Jun 4, 2012 at 3:33 PM, Daniel-Constantin Mierla <mico...@gmail.com>wrote: > To make the life easier to spot the hash code in such case, I just > committed a small patch to print it for alg 7: > > http://git.sip-router.org/cgi-**bin/gitweb.cgi/sip-router/?a=**commit;h=** > 83a558fbad700198a8667ef01f7562**69d7e2c310<http://git.sip-router.org/cgi-bin/gitweb.cgi/sip-router/?a=commit;h=83a558fbad700198a8667ef01f756269d7e2c310> > > Should be easy to backport if other version is used. > > Cheers, > Daniel > > > On 6/4/12 12:23 PM, Carsten Bock wrote: > >> It's hard to say, most likely not. You find the used hash-function here: >> >> 841 unsigned int ds_get_hash(str *x, str *y) >> http://git.sip-router.org/cgi-**bin/gitweb.cgi?p=sip-router;a=** >> blob;f=modules_k/dispatcher/**dispatch.c;h=** >> ae0c51b122d34e29b3474957a64b24**ff492cfcd5;hb=HEAD<http://git.sip-router.org/cgi-bin/gitweb.cgi?p=sip-router;a=blob;f=modules_k/dispatcher/dispatch.c;h=ae0c51b122d34e29b3474957a64b24ff492cfcd5;hb=HEAD> >> >> It was originally implemented to distribute usernames to servers, >> which worked fine. >> >> Carsten >> >> 2012/6/4 SamyGo <govoi...@gmail.com>: >> >>> 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 <cars...@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 <govoi...@gmail.com>: >>>> >>>>> 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 >>>>> <mico...@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:pr...@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. >>>>>> >>>>>> >>>>>> >>>>>> ______________________________**_________________ >>>>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing >>>>>> list >>>>>> sr-users@lists.sip-router.org >>>>>> http://lists.sip-router.org/**cgi-bin/mailman/listinfo/sr-**users<http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users> >>>>>> >>>>>> >>>>>> -- >>>>>> Daniel-Constantin Mierla - http://www.asipto.com >>>>>> http://twitter.com/#!/miconda - >>>>>> http://www.linkedin.com/in/**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 >>>>>> >>>>>> >>>>>> >>>>>> >>>>> ______________________________**_________________ >>>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >>>>> sr-users@lists.sip-router.org >>>>> http://lists.sip-router.org/**cgi-bin/mailman/listinfo/sr-**users<http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users> >>>>> >>>>> >>>> >>>> -- >>>> Carsten Bock >>>> CEO (Geschäftsführer) >>>> >>>> ng-voice GmbH >>>> Schomburgstr. 80 >>>> D-22767 Hamburg / Germany >>>> >>>> http://www.ng-voice.com >>>> mailto:cars...@ng-voice.com >>>> >>>> Mobile +49 179 2021244 >>>> Office +49 40 34927219 >>>> Fax +49 40 34927220 >>>> >>>> Sitz der Gesellschaft: Hamburg >>>> Registergericht: Amtsgericht Hamburg, HRB 120189 >>>> Geschäftsführer: Carsten Bock >>>> Ust-ID: DE279344284 >>>> >>>> Hier finden Sie unsere handelsrechtlichen Pflichtangaben: >>>> http://www.ng-voice.com/**imprint/ <http://www.ng-voice.com/imprint/> >>>> >>>> ______________________________**_________________ >>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >>>> sr-users@lists.sip-router.org >>>> http://lists.sip-router.org/**cgi-bin/mailman/listinfo/sr-**users<http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users> >>>> >>> >>> >>> ______________________________**_________________ >>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list >>> sr-users@lists.sip-router.org >>> http://lists.sip-router.org/**cgi-bin/mailman/listinfo/sr-**users<http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users> >>> >>> >> >> > -- > Daniel-Constantin Mierla - http://www.asipto.com > http://twitter.com/#!/miconda - > http://www.linkedin.com/in/**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 > > > > > ______________________________**_________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/**cgi-bin/mailman/listinfo/sr-**users<http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users> >
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