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Cluster Node Identities

If you are running NiFi in a clustered environment, you must specify the identities for each node. The authorization policies required for the nodes to communicate are created during startup.

For example, if you are setting up a 2 node cluster with the following DNs for each node:

        <property name="Authorizations File">./conf/authorizations.xml</property>
        <property name="Users File">./conf/users.xml</property>
        <property name="Initial Admin Identity">johnsmith@NIFI.APACHE.ORG</property>
        <property name="Legacy Authorized Users File"></property>
        <property name="Node Identity 1">cn=nifi-1,ou=people,dc=example,dc=com</property>
        <property name="Node Identity 2">cn=nifi-2,ou=people,dc=example,dc=com</property>

In a cluster, all nodes must have the same authorizations.xml. If a node has a different authorizations.xml, it cannot join the cluster. The only exception is if a node has an empty authorizations.xml. In this scenario, the node inherits the authorizations.xml from the cluster.

Now that initial authorizations have been created, additional users, groups and authorizations can be created and managed in the NiFi UI.