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From Chakrader Dewaragatla <Chakrader.Dewaraga...@lifelock.com>
Subject nifi Cluster setup issue
Date Tue, 29 Sep 2015 22:56:07 GMT
Hi – We are exploring nifi for our workflow management, I have a cluster setup with 3 nodes.
One as master and rest as slaves.

I see following error when I try to access the nifi workflow webpage.


2015-09-29 22:46:13,263 WARN [NiFi Web Server-23] o.a.n.c.m.impl.HttpRequestReplicatorImpl
Node request for [id=7481fca5-930c-4d4b-84a3-66cc62b4e2d3, apiAddress=localhost, apiPort=8080,
socketAddress=localhost, socketPort=3002] encountered exception: java.util.concurrent.ExecutionException:
com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused

2015-09-29 22:46:13,263 WARN [NiFi Web Server-23] o.a.n.c.m.impl.HttpRequestReplicatorImpl
Node request for [id=0abd8295-34a3-4bf7-ab06-1b6b94014740, apiAddress=localhost, apiPort=8080,
socketAddress=10.233.2.42, socketPort=3002] encountered exception: java.util.concurrent.ExecutionException:
com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused

2015-09-29 22:46:13,264 INFO [NiFi Web Server-23] o.a.n.c.m.e.NoConnectedNodesException org.apache.nifi.cluster.manager.exception.NoResponseFromNodesException:
No nodes were able to process this request.. Returning Conflict response.


Master is not hybrid, I wonder why it is trying to self connect 3002.


Master settings:

# cluster manager properties (only configure for cluster manager) #

nifi.cluster.is.manager=true

nifi.cluster.manager.address=10.233.2.40

nifi.cluster.manager.protocol.port=3001

nifi.cluster.manager.node.firewall.file=

nifi.cluster.manager.node.event.history.size=10

nifi.cluster.manager.node.api.connection.timeout=30 sec

nifi.cluster.manager.node.api.read.timeout=30 sec

nifi.cluster.manager.node.api.request.threads=10

nifi.cluster.manager.flow.retrieval.delay=5 sec

nifi.cluster.manager.protocol.threads=10

nifi.cluster.manager.safemode.duration=0 sec


Slave settings:

# cluster node properties (only configure for cluster nodes) #

nifi.cluster.is.node=true

nifi.cluster.node.address=10.233.2.42

nifi.cluster.node.protocol.port=3002

nifi.cluster.node.protocol.threads=2

# if multicast is not used, nifi.cluster.node.unicast.xxx must have same values as nifi.cluster.manager.xxx
#

nifi.cluster.node.unicast.manager.address=10.233.2.40

nifi.cluster.node.unicast.manager.protocol.port=3001




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