[NIFI-5075] Funnels with no outgoing relationship error and excessive CPU utilization

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 1.6.0
• Fix Version/s: 1.7.0
• Component/s: Core Framework
• Assignee: Koji Kawamura
• Reporter: Peter Wicks
• Created: 12/Apr/18 07:23
• Updated: 23/Apr/18 14:39
• Resolved: 23/Apr/18 14:37

Description

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

Issue Links

• links to: GitHub Pull Request #2634