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From "Howard Chu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (DIRSERVER-1651) rfc 4533 implementation differences between openldap and apacheDS
Date Wed, 31 Aug 2011 20:38:12 GMT

    [ https://issues.apache.org/jira/browse/DIRSERVER-1651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13094878#comment-13094878
] 

Howard Chu commented on DIRSERVER-1651:
---------------------------------------


"rid=<replicaId>,csn=<Csn value>" (update) while apacheDS is using NULL for
the initial state and the structure"<replicaId>;<Csn value>" for the update
state. in the RFC its said:
indicates a request for initial content.....

Note that if you don't send <replicaId> in your initial query, the provider 
cannot possibly know what replicaId to use in the first cookie it sends back 
to you.

There's a desire to ensure that a cookie unambiguously defines a specific 
provider-consumer relationship, and that a given cookie cannot be used with a 
different provider or a different consumer. (In practice this doesn't matter 
at all to the replication protocol, but keeping replicaIDs straight aids in 
debugging when you're looking at hex dumps of packet traces.)
-- 
   -- Howard Chu
   CTO, Symas Corp.           http://www.symas.com
   Director, Highland Sun     http://highlandsun.com/hyc/
   Chief Architect, OpenLDAP  http://www.openldap.org/project/


> rfc 4533 implementation differences between openldap and apacheDS
> -----------------------------------------------------------------
>
>                 Key: DIRSERVER-1651
>                 URL: https://issues.apache.org/jira/browse/DIRSERVER-1651
>             Project: Directory ApacheDS
>          Issue Type: Bug
>          Components: ldap
>    Affects Versions: 2.0.0-M2
>            Reporter: Hajo Kliemeck
>              Labels: 4533, openldap, syncrepl
>
> Tthere is an incompatibility between the RFC 4533 implementation of apacheDS and openldap.
> openldap uses the cookie structure "rid=<replicaId>" (initial) or "rid=<replicaId>,csn=<Csn
value>" (update) while apacheDS is using NULL for the initial state and the structure "<replicaId>;<Csn
value>" for the update state. in the RFC its said:
> {quote}
> The absence of a cookie or an initialized synchronization state in a cookie indicates
a request for initial content.....
> {quote}
> first is apacheDS like, second is openldap like
> It should be possible to adapt the structure or the behavior.

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