Re: multimaster replication one host offline

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On 04/27/2015 12:59 AM, William wrote:
On Fri, 2015-04-24 at 12:50 -0700, ghiureai wrote:
Hi  List,
I have cfg LDAP multimaster replication, one of the hosts will be
offline for some days, do I need to disable the replication agreement
completely at this point? (what will be the minimum cfg)
What are  the steps to resync the master after is  been brought online ?
Thank you
Isabella

I think that removing the replication agreement is the best course of
action.

Say you have A <-> B, and you plan to disable B.

You would disable the replication agreement of B -> A first, then A -> B

Then when you reactivate B, you would add the replication agreement for
A -> B, with the attribute nsds5beginreplicarefresh: start

Then once complete, you would re-add B -> A.
you can avoid the reinitialization if you ensure that the changelog is not purged too much, if the server is down for "somedays" set nsds5replicapurgedelay: somedays+1, when the other server is coming online replication should catch up (disabling and reenabling should be enough)

Sincerely,


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