Github user joewitt commented on the issue:
https://github.com/apache/nifi/pull/1682
seeing this quite a bit when failing to parse data against a given schema
2017-04-19 16:13:34,895 WARN [Timer-Driven Process Thread-7]
o.a.n.c.t.ContinuallyRunProcessorTask
org.apache.nifi.processor.exception.FlowFileHandlingException:
StandardFlowFileRecord[uuid=eb2bb793-5271-4b43-85f8-77240a46ab16,claim=StandardContentClaim
[resourceClaim=StandardResourceClaim[id=1492643593409-15, container=default,
section=15], offset=14125, length=0],offset=0,name=nifi-app.0-19874.log,size=0]
has already been marked for removal
at
org.apache.nifi.controller.repository.StandardProcessSession.validateRecordState(StandardProcessSession.java:2873)
at
org.apache.nifi.controller.repository.StandardProcessSession.validateRecordState(StandardProcessSession.java:2880)
at
org.apache.nifi.controller.repository.StandardProcessSession.remove(StandardProcessSession.java:1905)
at
org.apache.nifi.processors.standard.QueryRecord.onTrigger(QueryRecord.java:341)
at
org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
at
org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1115)
at
org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:144)
at
org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:47)
at
org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:132)
at
java.util.concurrent.Executors$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:745)
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