Mark Payne created NIFI-13789:
---------------------------------
Summary: NullPointerException when trying to start a Stateless
Process Group
Key: NIFI-13789
URL: https://issues.apache.org/jira/browse/NIFI-13789
Project: Apache NiFi
Issue Type: Bug
Components: Core Framework
Reporter: Mark Payne
Assignee: Mark Payne
I'm encountering the following error when I try to start a stateless process
group:
{code:java}
2024-09-22 10:01:38,057 ERROR [Monitor Processor Lifecycle Thread-1]
o.a.n.groups.StandardStatelessGroupNode
StandardStatelessGroupNode[group=StandardProcessGroup[identifier=cbfb160c-1000-1192-710e-83dde392d8b1,name=Redpanda_Consume_Produce_Loop]]
Failed to start
StandardStatelessGroupNode[group=StandardProcessGroup[identifier=cbfb160c-1000-1192-710e-83dde392d8b1,name=Redpanda_Consume_Produce_Loop]];
will try again in 10 seconds
java.lang.NullPointerException: Cannot invoke
"org.apache.nifi.groups.ProcessGroup.getParent()" because "topLevelGroup" is
null
at
org.apache.nifi.flow.synchronization.StandardVersionedComponentSynchronizer.populatePropertiesMap(StandardVersionedComponentSynchronizer.java:1464)
at
org.apache.nifi.flow.synchronization.StandardVersionedComponentSynchronizer.updateControllerService(StandardVersionedComponentSynchronizer.java:1390)
at
org.apache.nifi.flow.synchronization.StandardVersionedComponentSynchronizer.synchronizeControllerServices(StandardVersionedComponentSynchronizer.java:596)
at
org.apache.nifi.flow.synchronization.StandardVersionedComponentSynchronizer.synchronize(StandardVersionedComponentSynchronizer.java:415)
at
org.apache.nifi.flow.synchronization.StandardVersionedComponentSynchronizer.lambda$synchronize$0(StandardVersionedComponentSynchronizer.java:251)
at
org.apache.nifi.controller.flow.AbstractFlowManager.withParameterContextResolution(AbstractFlowManager.java:668)
at
org.apache.nifi.flow.synchronization.StandardVersionedComponentSynchronizer.synchronize(StandardVersionedComponentSynchronizer.java:246)
at
org.apache.nifi.groups.StandardProcessGroup.synchronizeFlow(StandardProcessGroup.java:3865)
at
org.apache.nifi.controller.flow.StandardStatelessGroupNodeFactory.createStatelessProcessGroup(StandardStatelessGroupNodeFactory.java:297)
at
org.apache.nifi.controller.flow.StandardStatelessGroupNodeFactory$1.createStatelessProcessGroup(StandardStatelessGroupNodeFactory.java:154)
at
org.apache.nifi.groups.StandardStatelessGroupNode.createStatelessFlow(StandardStatelessGroupNode.java:345)
at
org.apache.nifi.groups.StandardStatelessGroupNode.initialize(StandardStatelessGroupNode.java:218)
at
org.apache.nifi.groups.StandardStatelessGroupNode.lambda$initialize$1(StandardStatelessGroupNode.java:246)
at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
at
java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:572)
at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317)
at
java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:304)
at
java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144)
at
java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642)
at java.base/java.lang.Thread.run(Thread.java:1583) {code}
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