https://community.cloudera.com/t5/Support-Questions/All-Nodes-are-disconnected-from-NiFI-Cluster/m-p/187395#M149496 <P>Hi,</P><P>I have a 3 node NiFi cluster in the production environment. it has been observed that all the nodes are disconnected from nifi-cluster and all nodes are in running state.</P><P>Below are logged.</P><P>018-07-05 00:30:19,650 ERROR [Site-to-Site Worker Thread-90476] o.a.nifi.remote.SocketRemoteSiteListener Unable to communicate with remote instance Peer[url=&lt;&gt;] (SocketFlowFileServerProtocol[CommsID=9f090b3e-f5cd-4dae-b893-ef3ba983afef]) due to org.apache.nifi.cluster.exception.NoClusterCoordinatorException: No node has yet been elected Cluster Coordinator. Cannot establish connection to cluster yet.; closing connection</P><P>Thanks</P><P>Dilip</P> Thu, 05 Jul 2018 15:12:27 GMT dilip_namdev 2018-07-05T15:12:27Z