Re: Failover Failure Advice

[jekvb <jekvb@gmx.co.uk>]

On Tue, 2011-01-18 at 14:43 -0800, Anton Chu wrote:


> I've setup a master and slave ldap service for failover; 

My failover construction is a bit different, but it works quite nicely,
so I 'd like to share this.
For a simple and reliable failover I have two LDAP servers in Mirror
mode with Keepalived on top of it. This is based on having one virtual
IP for both machines. When the one LDAP server (master) that has the IP,
fails, all read & write operations are directed to the backup server.
When the failed LDAP server comes up again it takes over the IP again
and SyncRepl on the slave takes care of updating the master.  


Best regards, Kuba