Hi,

On Mon, Nov 02, 2009 at 12:07:59PM -0500, Sam Tran wrote:
> Hi All,
> 
> I followed the thread "Food for thought: add something like cutter to
> IPaddr2 (or portblock?) RA"
> (http://lists.linux-ha.org/pipermail/linux-ha-dev/2008-October/016196.html)
> with great interest.
> 
> I am working on a cluster of Master OpenLDAP servers using PaceMaker
> and OpenAIS. The problem I have lies in the replication between the
> master server that holds the IP address resource and a replica server.
> In the "refreshAndPersist" replication mode that is being used, the
> replica polls the master server for updates, then the connection
> between the replica and the master server is maintained, and the
> replica is waiting for subsequent updates from the master server. In
> the event of a failure of the initial master the new master is taking
> over the IP address resource, but doesn't know anything about the
> previous persist stage, therefore is not able to send new updates to
> the replica. An RST needs to be sent to the replica in order to
> terminate the existing session and force a polling retry from the
> replica, or the replica would wait for the session to time out.
> 
> I was wondering whether some work has been done as far as the
> implentation of the tickle ACK feature in IPaddr2 RA is concerned.

Not to my knowledge. It would obviously be a good feature. The
only thing which is not clear to me is who/how would
keep/maintain/synchronize the connections database

Thanks,

Dejan

> Thanks.
> 
> --
> Sam
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