Pierre Villard created NIFI-7641:
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Summary: NullPointerException with ExecuteFlumeSource
Key: NIFI-7641
URL: https://issues.apache.org/jira/browse/NIFI-7641
Project: Apache NiFi
Issue Type: Bug
Components: Extensions
Reporter: Pierre Villard
Faced a NPE when using the ExecuteFlumeSource processor. Seems to be when the
processor couldn't bind to the port as another processor was already using it.
{code:java}
2020-07-14 11:40:54,373 INFO org.apache.flume.source.DefaultSourceFactory:
Creating instance of source src-1, type avro
2020-07-14 11:40:54,374 INFO
org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent: Scheduled
ExecuteFlumeSource[id=b8103a4f-871d-12f4-8530-997105f8c85d] to run with 1
threads
2020-07-14 11:40:54,374 INFO org.apache.flume.source.AvroSource: Avro source
src-1 stopping: Avro source src-1: { bindAddress: 0.0.0.0, port: 50100 }
2020-07-14 11:40:54,375 ERROR
org.apache.nifi.processors.flume.ExecuteFlumeSource:
ExecuteFlumeSource[id=b8103a4f-871d-12f4-8530-997105f8c85d]
ExecuteFlumeSource[id=b8103a4f-871d-12f4-8530-997105f8c85d] failed to process
session due to java.lang.NullPointerException; Processor Administratively
Yielded for 1 sec: java.lang.NullPointerException
java.lang.NullPointerException: null
at org.apache.flume.source.AvroSource.stop(AvroSource.java:302)
at
org.apache.flume.source.EventDrivenSourceRunner.stop(EventDrivenSourceRunner.java:51)
at
org.apache.nifi.processors.flume.ExecuteFlumeSource.stopped(ExecuteFlumeSource.java:158)
at
org.apache.nifi.processors.flume.ExecuteFlumeSource.onTrigger(ExecuteFlumeSource.java:179)
at
org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1176)
at
org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:213)
at
org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:117)
at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
2020-07-14 11:40:54,375 WARN org.apache.nifi.controller.tasks.ConnectableTask:
Administratively Yielding
ExecuteFlumeSource[id=b8103a4f-871d-12f4-8530-997105f8c85d] due to uncaught
Exception: java.lang.NullPointerException
java.lang.NullPointerException: null
at org.apache.flume.source.AvroSource.stop(AvroSource.java:302)
at
org.apache.flume.source.EventDrivenSourceRunner.stop(EventDrivenSourceRunner.java:51)
at
org.apache.nifi.processors.flume.ExecuteFlumeSource.stopped(ExecuteFlumeSource.java:158)
at
org.apache.nifi.processors.flume.ExecuteFlumeSource.onTrigger(ExecuteFlumeSource.java:179)
at
org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1176)
at
org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:213)
at
org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:117)
at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
2020-07-14 11:40:54,898 INFO org.apache.nifi.controller.StandardFlowService:
Saved flow controller org.apache.nifi.controller.FlowController@3a534280 //
Another save pending = false
2020-07-14 11:40:55,991 INFO
org.apache.nifi.controller.scheduling.StandardProcessScheduler: Starting
ExecuteFlumeSource[id=21e134ef-a08b-1570-89a5-064680f551a0]
2020-07-14 11:40:55,991 INFO org.apache.nifi.controller.StandardProcessorNode:
Starting ExecuteFlumeSource[id=21e134ef-a08b-1570-89a5-064680f551a0]
{code}
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