Unable to setup NiFi Cluster due to an Error

BK84 — Thu, 06 Feb 2025 05:09:02 GMT

Team,

Need help in setting up NiFi Cluster with 3 nodes, while i am trying to setup with below parameters, i am getting error. Please suggest where i am going wrong

NiFi Version: nifi-2.2.0

state-management.xml

<cluster-provider>
<id>cluster-provider</id>
<class>org.apache.nifi.controller.state.providers.raft.RaftStateProvider</class>
<property name="Connect String">Host1_IPAddress:2181,Host2_IPAddress:2181,Host3_IPAddress:2181</property>
<property name="Root Node">/nifi</property>
<property name="Session Timeout">10 seconds</property>
<property name="Access Control">Open</property>
</cluster-provider>

NiFi Properties:

nifi.cluster.is.node=true
nifi.cluster.node.address=Host1_IPAddress
nifi.cluster.node.protocol.port=9999
nifi.cluster.flow.election.max.candidates=3
nifi.sensitive.props.key=KeyValue

nifi.state.management.provider.cluster=cluster-provider
nifi.web.https.host=localhost
nifi.web.https.port=8444

Error:

Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.apache.nifi.components.state.StateManagerProvider]: Factory method 'stateManagerProvider' threw exception with message: Cannot create CLUSTER Provider of type org.apache.nifi.controller.state.providers.raft.RaftStateProvider
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.lambda$instantiate$0(SimpleInstantiationStrategy.java:199)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiateWithFactoryMethod(SimpleInstantiationStrategy.java:88)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:168)
at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:653)
... 65 common frames omitted
Caused by: java.lang.RuntimeException: Cannot create CLUSTER Provider of type org.apache.nifi.controller.state.providers.raft.RaftStateProvider
at org.apache.nifi.controller.state.manager.StandardStateManagerProvider.createStateProvider(StandardStateManagerProvider.java:289)
at org.apache.nifi.controller.state.manager.StandardStateManagerProvider.createClusteredStateProvider(StandardStateManagerProvider.java:156)
at org.apache.nifi.controller.state.manager.StandardStateManagerProvider.create(StandardStateManagerProvider.java:122)
at org.apache.nifi.framework.configuration.ManagerConfiguration.stateManagerProvider(ManagerConfiguration.java:83)
at org.apache.nifi.framework.configuration.ManagerConfiguration$$SpringCGLIB$$0.CGLIB$stateManagerProvider$2(<generated>)
at org.apache.nifi.framework.configuration.ManagerConfiguration$$SpringCGLIB$$FastClass$$1.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:258)
at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:348)
at org.apache.nifi.framework.configuration.ManagerConfiguration$$SpringCGLIB$$0.stateManagerProvider(<generated>)
at java.base/jdk.internal.reflect.DirectMethodHandleAccessor.invoke(DirectMethodHandleAccessor.java:103)
at java.base/java.lang.reflect.Method.invoke(Method.java:580)
at org.springframework.beans.factory.support.SimpleInstantiationStrategy.lambda$instantiate$0(SimpleInstantiationStrategy.java:171)
... 68 common frames omitted
Caused by: java.lang.IllegalStateException: The specified class 'org.apache.nifi.controller.state.providers.raft.RaftStateProvider' is not known to this nifi.
at org.apache.nifi.controller.state.manager.StandardStateManagerProvider.instantiateStateProvider(StandardStateManagerProvider.java:389)
at org.apache.nifi.controller.state.manager.StandardStateManagerProvider.createStateProvider(StandardStateManagerProvider.java:287)
... 79 common frames omitted

Re: Unable to setup NiFi Cluster due to an Error

MattWho — Thu, 06 Feb 2025 15:00:22 GMT

@BK84

The exception is caused by:

Caused by: java.lang.IllegalStateException: The specified class 'org.apache.nifi.controller.state.providers.raft.RaftStateProvider' is not known to this nifi.

Your NiFi knows nothing about this class meanung the nifi lib directory does not contain any nar that includes this class:

org.apache.nifi.controller.state.providers.raft.RaftStateProvider

I also see nothing in Apache NiFi Jira nor in the NiFi 2 documentation mentioning this class or any type of raft state provider.

Looking at the properties configured with this provider class, they match the zookeeper properties. So I suspect you should be using this class instead in your stet provider:

org.apache.nifi.controller.state.providers.zookeeper.ZooKeeperStateProvider

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Thank you,
Matt

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Unable to setup NiFi Cluster due to an Error

Re: Unable to setup NiFi Cluster due to an Error