[OpenSIPS-Users] dispatcher problem

[Matt Hamilton]

Hi Răzvan,

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,

    -- 
Răzvan 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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