Hello all and apologies for the long first couple of questions. I'm working on some infrastructure automation spinning up unsecured NiFi Clusters on EC2. I see from the Administrators Guide <https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#cluster-node-identities>. that there should be a property set in authorizers.xml for each node in a cluster for the Cluster Node Identity what value should be set here? The example seems to be a person record in an LDAP Directory. I'm picking up some work that a colleague did some years ago and they have not set any such value in our existing clusters :(
The background to this question is that we would like to periodically replace the node with one based on a newer AMI (my automation installs and configures NiFi) and have the new host rejoin the cluster at the same node address so that cluster membership appears constant. At the moment this succeeds but leaves *two* hosts - the old one in a disconnected state and the new one connected. My hypothesis is that this occurs because we are not setting node identities. O/S is RedHat Linux The NiFi version (currently) is 1.8!!! ZooKeeper is external thanks in advance and apologies for the no doubt many misconceptions I have shown above -- Niall Litchfield
