Ulrich Windl wrote:
Quanah Gibson-Mount quanah@symas.com schrieb am 05.12.2016 um 04:23 in
There is zero requirement to put a load balancer in front of an MMR setup.
But it seems to make much sense: In my experience if you configure multiple LDAP servers, the NSS resolver always uses the first configured server as long as it's reachable; even if it's not, the first configured server is tried first.
This depends very much on the client. E.g. sssd works fairly well even with simple DNS round-robin. The load is almost equally spread.
After connection timeout the second server is tried... We had dhad a case when all LDAP operations were heavily delayed when two out of three servers had failed (due to rebooting the machine).
If you want to have fast fail-over then reduce timeout timespan.
Ciao, Michael.