question Nifi Cluster-Connection Suspended in Archives of Support Questions (Read Only)

Nifi Cluster-Connection Suspended

gillu_rock_in — Fri, 27 Apr 2018 17:01:57 GMT

Hi,

I have setup a 3 node Nifi cluster.When i started running only one node,i got the connection refused error. The errors is because during startup ZK will not establish quorum until all three nodes have completely started. As a node goes through its startup process it will being begin trying to establish zk quorum between all other zk nodes. Those other nodes may not be running yet if the other nodes are still starting as well, thus producing a lot of ERROR messages.So as a result nifi-app log is getting accumulated with error messages and increase in size.Is there a way to handle this?

Re: Nifi Cluster-Connection Suspended

MattWho — Fri, 27 Apr 2018 18:50:40 GMT

@Gillu Varghese

The imbedded ZK was implemented to make setting up new NiFi Clusters quick and easy for POC and development type activities. The errors you are seeing are expected and not much can be done about that. It is recommended that an external ZK is used by NiFi instead of the internal. Especially fro a production type environment.

Thank you,

Matt

Re: Nifi Cluster-Connection Suspended

gillu_rock_in — Fri, 27 Apr 2018 19:29:24 GMT

@Matt Clarke

Thankyou so much for your quick reply