If you have an F5, or other load balancer, it's pretty easy to create a VIP with multiple back end nodes (your LDAP servers). Obviously not a cheap solution, but you can setup monitors which can detect when a server has gone down, and immediately pull it from the pool. It's been very effective for me. On Jul 14, 2014 3:35 PM, "Justin Edmands" <[email protected]> wrote:
> You can use a few different methods on top of multi-master. > > HAproxy server (or other load balancer). This service listens for > requests on 389/636 and forwards to the current running server > Multiple records in DNS. see below > Split Horizon DNS. google that one > > Although some would advise against it, we use DNS to take care of > this. Just make multiple entries: > > ldap1.example.com = 10.0.0.2 > ldap2.example.com = 10.0.0.3 > ldap3.example.com = 10.0.0.4 > ldap.example.com = 10.0.0.2 > ldap.example.com = 10.0.0.3 > ldap.example.com = 10.0.0.4 > > point users to ldap.example.com. if ldap1.example.com dies, users will > alternate hitting the dead and alive servers, ending in successful > login. > I get alerts if the server is down so I yank it from DNS quickly. > difference between this and HAproxy is that haproxy will automatically > remove the bad entries, but adds another point of failure so it's a > wash to me. > > On Mon, Jul 14, 2014 at 5:55 PM, Isabella Ghiurea > <[email protected]> wrote: > > Hi LDAP USERS, > > I would like a design cfg suggestion for implementing a hot standby > LDAP > > solution, would multimmaster configuration be sufficient ? > > I need some cfg which will switch the clients instantaneous to a second > > master , transparent to clients, > > no downtime and "0" loss of transactions. > > Thank you > > Isabella > > > > -- > > > > > > -- > > 389 users mailing list > > [email protected] > > https://admin.fedoraproject.org/mailman/listinfo/389-users > -- > 389 users mailing list > [email protected] > https://admin.fedoraproject.org/mailman/listinfo/389-users
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