I was not able to find any place where that previous node is in the properties 
files. I rebuilt the cluster from scratch using my Ansible playbook so I 
updated all the areas there and reconfigured brand new servers. I had this 
problem once before previously and just bringing up brand new servers seemed to 
fix it but that hasn’t worked this time.



> On Apr 5, 2018, at 11:12 AM, Andy LoPresto <[email protected]> wrote:
> 
> Hi Scott,
> 
> Can you check the contents of your nifi.properties (specifically the 
> nifi.cluster.* and nifi.zookeeper.* sections) as well as the 
> conf/zookeeper.properties files on each node in the cluster to see if one 
> still has the old address?
> 
> Andy LoPresto
> [email protected] <mailto:[email protected]>
> [email protected] <mailto:[email protected]>
> PGP Fingerprint: 70EC B3E5 98A6 5A3F D3C4  BACE 3C6E F65B 2F7D EF69
> 
>> On Apr 5, 2018, at 9:50 AM, Scott Howell <[email protected] 
>> <mailto:[email protected]>> wrote:
>> 
>> I had to change the subdomain of my cluster nodes. The cluster node names 
>> are nifi-{#}.internal.dev.{redacted}.com. Looking at my log below it still 
>> believes there is a cluster coordinator is found at 
>> nifi-2.dev.{redacted}.com. 
>> 
>> o.a.n.c.c.node.NodeClusterCoordinator Failed to determine which node is 
>> elected active Cluster Coordinator: ZooKeeper reports the address as 
>> nifi-2.dev.{redacted}.com:9999, but there is no node with this address. 
>> Attempted to determine the node's information but failed to retrieve its 
>> information due to org.apache.nifi.cluster.protocol.ProtocolException: 
>> Failed to create socket due to: java.net.UnknownHostException: 
>> nifi-2.dev.{redacted}.com
>> 
>> I had this problem before and just completely rebuilt the cluster, I did 
>> this, this time and that doesn’t seem to be working. If anyone has any 
>> insight that would be great.
>> 
>> Thanks,
>> 
>> Scott
> 

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