Re: multiples syncrepl from same host and DB

[Howard Chu <hyc@symas.com>]

julien soula wrote:
> hello,
>
> I wanted to synchronize 2 branches of a master DB (slapd-2.4.38). So I
> created 2 olcSyncrepl on the slave :
>
> olcSyncrepl: {0}rid=201 provider=ldap://master searchbase="cn=branch1,suffixDB" scope=sub
> olcSyncrepl: {1}rid=202 provider=ldap://master searchbase="cn=branch2,suffixDB" scope=sub
>
> Unfortunatly, it doesn't work. A change on branch2 on the master
> produces often a "CSN too old" on the slave.
>
> After investigating, it seems that the pb comes from the fact there is
> one contextCSN by DB. So if the sync task on branch1 is the first to
> process, it updates the contextCSN and therefore the sync task on
> branch2 thinks that change is not newer. Am I right ?
>
> So is there a proper way to achieve what I want ?

You have two "masters" for this DB, therefore you must configure the 
providers as multimaster providers - they must each have a unique serverID.

--
  -- Howard Chu
  CTO, Symas Corp.           http://www.symas.com
  Director, Highland Sun     http://highlandsun.com/hyc/
  Chief Architect, OpenLDAP  http://www.openldap.org/project/