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https://issues.apache.org/jira/browse/NIFI-5075?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Koji Kawamura updated NIFI-5075:
--------------------------------
    Status: Patch Available  (was: In Progress)

Hi [~markap14], would you review the PR2634? I hope I have fixed it correctly. 
Thanks!
https://github.com/apache/nifi/pull/2634 

> Funnels with no outgoing relationship error
> -------------------------------------------
>
>                 Key: NIFI-5075
>                 URL: https://issues.apache.org/jira/browse/NIFI-5075
>             Project: Apache NiFi
>          Issue Type: Bug
>          Components: Core Framework
>    Affects Versions: 1.6.0
>            Reporter: Peter Wicks
>            Assignee: Koji Kawamura
>            Priority: Major
>
> If a Funnel has no outgoing relationships it will throw an exception when it 
> tries to send FlowFile's to that non-existent relationship.
> Replicate by creating a GenerateFlowFile processor to a Funnel, start the 
> GenerateFlowFile processor and check your log file.
>  
> 2018-04-11 23:53:28,066 ERROR [Timer-Driven Process Thread-31] 
> o.apache.nifi.controller.StandardFunnel 
> StandardFunnel[id=b868231c-0162-1000-571c-ae3e7d15d848] 
> StandardFunnel[id=b868231c-0162-1000-571c-ae3e7d15d848] failed to process 
> session due to java.lang.RuntimeException: 
> java.lang.IllegalArgumentException: Relationship '' is not known; Processor 
> Administratively Yielded for 1 sec: java.lang.RuntimeException: 
> java.lang.IllegalArgumentException: Relationship '' is not known
> java.lang.RuntimeException: java.lang.IllegalArgumentException: Relationship 
> '' is not known
>         at 
> org.apache.nifi.controller.StandardFunnel.onTrigger(StandardFunnel.java:365)
>         at 
> org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:175)
>         at 
> org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:117)
>         at 
> java.util.concurrent.Executors$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:1142)
>         at 
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>         at java.lang.Thread.run(Thread.java:748)
> Caused by: java.lang.IllegalArgumentException: Relationship '' is not known
>         at 
> org.apache.nifi.controller.repository.StandardProcessSession.transfer(StandardProcessSession.java:1935)
>         at 
> org.apache.nifi.controller.StandardFunnel.onTrigger(StandardFunnel.java:379)
>         at 
> org.apache.nifi.controller.StandardFunnel.onTrigger(StandardFunnel.java:358)
>         ... 9 common frames omitted



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