NiFi Cluster Joining Issue

["Velumani, Manoj" <Ma...@spglobal.com>]

Hello team,

Hope you are doing great.

I am Manoj from Data Architect team at S&P Global.

We are working on Apache NiFi Open Source for the past year and we have built a SQL P2P Replication solution using Apache NiFi and its working pretty good with the solution. But when we started scaling to 100s of table in the NiFi cluster we started getting the below error and the cluster disconnects no nodes join the cluster. Any help on the reason for this error would be much helpful

2019-11-18 17:20:07,260 INFO [main] o.apache.nifi.controller.FlowController Successfully synchronized controller with proposed flow
2019-11-18 17:20:17,280 INFO [main] o.a.nifi.controller.StandardFlowService Connecting Node: avgdpsnifigs-3.stage.mktint.global:80
2019-11-18 17:20:17,285 INFO [main] o.a.n.c.c.n.LeaderElectionNodeProtocolSender Determined that Cluster Coordinator is located at avgdpsnifigs-2.stage.mktint.global:9999; will use this address for sending heartbeat messages
2019-11-18 17:21:35,405 INFO [Write-Ahead Local State Provider Maintenance] org.wali.MinimalLockingWriteAheadLog org.wali.MinimalLockingWriteAheadLog@3a1540be checkpointed with 1 Records and 0 Swap Files in 23 milliseconds (Stop-the-world time = 1 milliseconds, Clear Edit Logs time = 1 millis), max Transaction ID 0
2019-11-18 17:23:18,199 WARN [main] o.a.nifi.controller.StandardFlowService Failed to connect to cluster due to: org.apache.nifi.cluster.protocol.ProtocolException: Failed unmarshalling 'CONNECTION_RESPONSE' protocol message from avgdpsnifigs-2.stage.mktint.global/10.21.38.97:9999 due to: java.net.SocketTimeoutException: Read timed out

Thank you,
Manoj.



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