--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
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Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: http://www.symas.com
Quanah Gibson-Mount quanah@symas.com schrieb am 03.12.2016 um 22:28 in
Nachricht <4C4BC30AC646B3691A58116E@[192.168.1.19]>:
--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.
Let me add that in SLES11 the YAST admin tool only manages users if you defined a mirror mode, even if the LDAP server is on the same host. So you still need it there.
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
openldap-technical@openldap.org
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Quanah Gibson-Mount -
Ulrich Windl