ZCS Multi-Server Installation Guide 8.0

Network Edition

Enabling Multi-Master Replication on Initial Stand-Alone LDAP Master

Before you can enable the multi-master replication feature, you must know the hostname of the first secondary master that is being added to the group. The hostname is entered when you enable the feature. Once you enable the multi-master replication feature, you do not need to run the command again.

When zmlocalconfig is run the first time, the master LDAP servers are configured as follows:

The first master LDAP server ID is set to 1.

The master LDAP server is put in a group with a secondary master that is listening to LDAP on port 389.

The replication ID is set to 100 by default on the secondary master.

Writes initiated from the server go to the ldap master1 by default. If ldap master1 is down, writes move to ldap master2

1.	To enable the feature run:

./libexec/zmldapenable-mmr -s 1 -m ldap://<<master2.example.com>>:389/

2.	Once the feature is enabled use the zmlocalconfig command to add the LDAP servers to a group.

zmlocalconfig -e ldap_master_url="ldap://<<master1.example.com>>:389 ldap://<<master2.example.com>>:389"