Justin explains perfectly what we do at my company, and it works
fantastically. I don't need a load balancer sitting between my data
and app, I need speed.
Steven Crothers
[email protected]


On Mon, Jul 14, 2014 at 6:34 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
>>
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