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From Eric-AWL <eric.vinc...@atosorigin.com>
Subject Re: LDAP Discovery mechanism & round robin choice
Date Thu, 21 Aug 2008 15:32:47 GMT

<networkConnectors>
      <ldapNetworkConnector uri="ldap://myldap.mydomain.com:389"
                            base="dc=brokers,dc=mydomain,dc=com"
                            anonymousAuthentication="true"
                            searchFilter="(cn=*)"
                            searchScope="SUBTREE_SCOPE"
                            />
   </networkConnectors>

Ok for uri="failover:(ldap:://ldapserver1,ldap://ldapserver2)" which
concerns the failover of ldapserver.

But my question concerned the ldap directory itself, if under "base"
(dc=brokers,dc=mydomain, dc=com), I put more than one LDAP entries which can
all be considered as a network broker. Which server will be chosen and how ?

Eric-AWL




James.Strachan wrote:
> 
> 2008/8/21 Eric-AWL <eric.vincent@atosorigin.com>:
>>
>> Hi every body
>>
>> I'm not an LDAP expert so I expect I don't make too many mistakes in my
>> explications.
>>
>> If we put several server references under the same RDN, does the
>> discovery
>> mechanism choose one of them with a round-robin algorithm ?
>>
>> What happens if the server associated with this reference doesn't work ?
>> Does the discovery mechanism choose an other ?
>>
>> What happens exactly when we add or remove one reference in the LDAP
>> directory structure ?
> 
> ActiveMQ typically uses the Failover protocol with all discovery
> mechanisms - so that if a discovered (or static) broker entry is no
> longer valid the client will auto-reconnect to another broker - you
> can configure the algorithm to use round robin or random along with
> various other things...
> 
> http://activemq.apache.org/failover-transport-reference.html
> 
> 
> -- 
> James
> -------
> http://macstrac.blogspot.com/
> 
> Open Source Integration
> http://open.iona.com
> 
> 

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