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Re: n-way multi master and mirror mode



--On Saturday, December 03, 2016 3:13 PM -0500 Brendan Kearney <bpk678@gmail.com> wrote:

i have a n-way multi master replicated directory, and i currently have
mirror mode turned on.  i am getting events in my logs about deferring
operations (too many executing, etc) and want to know if i am causing
these with mirror mode.  the reading i am able to do on the topic seems
to indicate that mirror mode is only necessary in provider/consumer
replication, but i wanted to clarify that.  is mirror mode necessary for
n-way multi master replication?  am i safe to turn it off, if it not
needed?

Mirror-Mode is a concept that has nothing to do with OpenLDAP configuration in and of itself. The parameter in slapd.conf/cn=config is badly misnamed. Either your servers are configured for multi-master replication, or they aren't.

Mirror mode is simply where you put a load balancer or similar device in front of your LDAP servers and direct write traffic to only one multi-master configured node at a time.

See also <http://www.openldap.org/its/index.cgi/?findid=8511>.

Regards,
Quanah


--

Quanah Gibson-Mount
Product Architect
Symas Corporation
Packaged, certified, and supported LDAP solutions powered by OpenLDAP:
<http://www.symas.com>