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Joseph Witt commented on NIFI-899: ---------------------------------- waiting on null? {quote} "pool-34-thread-1" Id=157 TIMED_WAITING on null at java.lang.Thread.sleep(Native Method) at org.apache.nifi.processors.standard.ListenUDP$2.call(ListenUDP.java:341) at org.apache.nifi.processors.standard.ListenUDP$2.call(ListenUDP.java:325) at java.util.concurrent.FutureTask.run(FutureTask.java:262) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at java.lang.Thread.run(Thread.java:745) Number of Locked Synchronizers: 1 - java.util.concurrent.ThreadPoolExecutor$Worker@2f485891 {quote} > ListenUDP attempts to transfer a FlowFile that is no longer part of the > session > ------------------------------------------------------------------------------- > > Key: NIFI-899 > URL: https://issues.apache.org/jira/browse/NIFI-899 > Project: Apache NiFi > Issue Type: Bug > Reporter: Bryan Bende > > While testing ListenUDP receiving events from syslogd, started and stopped > the processor a few times, and eventually got this error: > {code} > 2015-08-27 13:26:36,210 ERROR [Timer-Driven Process Thread-2] > o.a.nifi.processors.standard.ListenUDP > [ListenUDP[id=4ceafe26-5f31-4f94-bf86-1c327db11b7e]] Failed to transfer flow > files or commit session...rolled back > org.apache.nifi.processor.exception.FlowFileHandlingException: > StandardFlowFileRecord[uuid=746c09c2-c150-4007-8107-b0b5eb9ecc5b,claim=org.apache.nifi.controller.repository.claim.StandardContentClaim@fb2f16f4,offset=0,name=141981000764924,size=140] > is not known to StandardProcessSession[id=4808] > at > org.apache.nifi.controller.repository.StandardProvenanceReporter.verifyFlowFileKnown(StandardProvenanceReporter.java:97) > ~[na:na] > at > org.apache.nifi.controller.repository.StandardProvenanceReporter.receive(StandardProvenanceReporter.java:123) > ~[na:na] > at > org.apache.nifi.controller.repository.StandardProvenanceReporter.receive(StandardProvenanceReporter.java:118) > ~[na:na] > at > org.apache.nifi.controller.repository.StandardProvenanceReporter.receive(StandardProvenanceReporter.java:113) > ~[na:na] > at > org.apache.nifi.controller.repository.StandardProvenanceReporter.receive(StandardProvenanceReporter.java:103) > ~[na:na] > at > org.apache.nifi.processors.standard.ListenUDP.transferFlowFiles(ListenUDP.java:515) > [nifi-standard-processors-0.3.0-SNAPSHOT.jar:0.3.0-SNAPSHOT] > at > org.apache.nifi.processors.standard.ListenUDP.onTrigger(ListenUDP.java:497) > [nifi-standard-processors-0.3.0-SNAPSHOT.jar:0.3.0-SNAPSHOT] > at > org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1077) > [nifi-framework-core-0.3.0-SNAPSHOT.jar:0.3.0-SNAPSHOT] > at > org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:127) > [nifi-framework-core-0.3.0-SNAPSHOT.jar:0.3.0-SNAPSHOT] > at > org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:49) > [nifi-framework-core-0.3.0-SNAPSHOT.jar:0.3.0-SNAPSHOT] > at > org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:119) > [nifi-framework-core-0.3.0-SNAPSHOT.jar:0.3.0-SNAPSHOT] > at > java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) > [na:1.8.0_45] > at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) > [na:1.8.0_45] > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) > [na:1.8.0_45] > at > java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) > [na:1.8.0_45] > at > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) > [na:1.8.0_45] > at > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) > [na:1.8.0_45] > at java.lang.Thread.run(Thread.java:745) [na:1.8.0_45] > {code} > The only configuration set on the processor was the Port and FlowFile Per > Datagram to true, everything else was defaults. -- This message was sent by Atlassian JIRA (v6.3.4#6332)