[OpenSIPS-Users] dispatcher problem

Razvan Crainea razvancrainea at opensips.org
Thu Feb 2 23:36:37 CET 2012


Hi, Matt!

So for different hashed strings like:

DBG:dispatcher:ds_hash_pvar: Hashing "061002"!

you always get the same output:

DBG:dispatcher:ds_select_dst: alg hash [1], id [1]


Also, are you assigning different weights for any of the Asterisk?

Regards,

-- 
Ra(zvan Crainea
OpenSIPS Developer
http://opensips-solutions.org/



On 02/03/2012 12:16 AM, Matt Hamilton wrote:
> Hi Ra(zvan,
>
> Yes, I'm using the same hashing values - the values I assign to the PV are also
> passed to the ds_select_dst correctly as far as I can see. Here is a typical
> debug output:
>
> DBG:dispatcher:ds_hash_pvar: Hashing "061002"!
> DBG:dispatcher:ds_select_dst: alg hash [1], id [1]
> DBG:dispatcher:ds_select_dst: selected [7-1/1]<sip:x.x.x.13:5060>
> DBG:dispatcher:ds_select_dst: using entry [1/0]
>
>
> I ran some test with 3 Asterisk servers with interesting results:
>
> With 3 Asterisk servers specified in dispatcher.list, here is the distribution:
>
> Server1: 061003
> Server2: 061002, 061007, 061008
> Server3: 061005, 061006
>
> With only Server1 and Server2 specified in dispatcher.list:
>
> Server1:
> Server2: 061002, 061003, 061005, 061006, 61007, 061008
>
>
> Likewise, with Server1 and Server3, Server3 gets everything.
>            with Server2 and Server3, Server3 gets everything.
>
> Is there anything I can do to fix this (somehow trick the function assuming the way I do is the correct way)?
>
> Thanks,
> Matt
>
>
>
>
>
>
>
> ------------------------------------------------------------------------
> Date: Thu, 2 Feb 2012 22:51:46 +0200
> From: razvancrainea at opensips.org
> To: users at lists.opensips.org
> Subject: Re: [OpenSIPS-Users] dispatcher problem
>
> Hi, Matt!
>
> Are you sure you are not using the same hashing value all the time?
> If yes, can you increase your debugging level to 6 and provide more 
> information? I would be looking in the opensips log for lines that 
> contain the following strings: "ds_hash_pvar: Hashing " and 
> "ds_select_dst: alg hash ".
>
> Regards,
> -- 
> Ra(zvan Crainea
> OpenSIPS Developer
> http://opensips-solutions.org/
>
>
> On 02/02/2012 10:15 PM, Matt Hamilton wrote:
>
>     Hi,
>
>     I'm using Opensips to dispatch to 2 servers - serverA, serverB.
>     When one of the servers is down, Opensips is dispatching to the
>     active one correctly. However, when both of them are Active, it's
>     picking only one of them and ignoring the other; e.g.,
>
>     when serverB is down, dispatches to serverA
>     when serverA is down, dispatches to serverB
>     when both up, dispatches to serverB
>     while dispatching to serverA when serverB is down, if I activate
>     serverB, all requests dispatched to serverB
>
>
>     Here is my code:
>
>     modparam("dispatcher", "hash_pvar", "$avp(75)")
>
>
>     in the script, I'm setting $avp(75) to one of the following
>     "061002", "061003", "061004", "061005", "061006" just before
>     calling ds_select_dst.
>
>     $avp(75)=..
>     ds_select_dst("1", "7");
>
>     Any ideas why this is happening?
>
>     Regards,
>     Matt
>
>
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