Douglass Just looked at the code and would like to ask you if you could try it with our latest snapshot. This was a bug that was fixed.
Thanks Oleg On Dec 1, 2015, at 11:23 AM, Douglas Doughty <ddoug...@emprint.com<mailto:ddoug...@emprint.com>> wrote: Hi All, I’ve enjoyed working with nifi, and I am about to deploy it into production, but I keep running into one problem: I get an error on a ConvertAvroToJSON processor that is in a success path after a ExecuteSQL processor. The messages stayed queued between the two processors. When looking at the provenance for the ExecuteSQL processor, I do see hex data. The error is: 2015-12-01 09:16:19,349 ERROR [Timer-Driven Process Thread-2] o.a.n.processors.avro.ConvertAvroToJSON ConvertAvroToJSON[id=dd7826cf-31d0-437a-9d69-54d91d7c0838] ConvertAvroToJSON[id=dd7826cf-31d0-437a-9d69-54d91d7c0838] failed to process due to java.util.NoSuchElementException; rolling back session: java.util.NoSuchElementException 2015-12-01 09:16:19,350 ERROR [Timer-Driven Process Thread-2] o.a.n.processors.avro.ConvertAvroToJSON ConvertAvroToJSON[id=dd7826cf-31d0-437a-9d69-54d91d7c0838] ConvertAvroToJSON[id=dd7826cf-31d0-437a-9d69-54d91d7c0838] failed to process session due to java.util.NoSuchElementException: java.util.NoSuchElementException 2015-12-01 09:16:19,350 WARN [Timer-Driven Process Thread-2] o.a.n.processors.avro.ConvertAvroToJSON ConvertAvroToJSON[id=dd7826cf-31d0-437a-9d69-54d91d7c0838] Processor Administratively Yielded for 1 sec due to processing failure 2015-12-01 09:16:19,350 WARN [Timer-Driven Process Thread-2] o.a.n.c.t.ContinuallyRunProcessorTask Administratively Yielding ConvertAvroToJSON[id=dd7826cf-31d0-437a-9d69-54d91d7c0838] due to uncaught Exception: java.util.NoSuchElementException 2015-12-01 09:16:19,353 WARN [Timer-Driven Process Thread-2] o.a.n.c.t.ContinuallyRunProcessorTask java.util.NoSuchElementException: null at org.apache.avro.file.DataFileStream.next(DataFileStream.java:232) ~[na:na] at org.apache.avro.file.DataFileStream.next(DataFileStream.java:220) ~[na:na] at org.apache.nifi.processors.avro.ConvertAvroToJSON$1.process(ConvertAvroToJSON.java:89) ~[na:na] at org.apache.nifi.controller.repository.StandardProcessSession.write(StandardProcessSession.java:2155) ~[nifi-framework-core-0.3.0.jar:0.3.0] at org.apache.nifi.processors.avro.ConvertAvroToJSON.onTrigger(ConvertAvroToJSON.java:81) ~[na:na] at org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27) ~[nifi-api-0.3.0.jar:0.3.0] at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1077) ~[nifi-framework-core-0.3.0.jar:0.3.0] at org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:127) [nifi-framework-core-0.3.0.jar:0.3.0] at org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:49) [nifi-framework-core-0.3.0.jar:0.3.0] at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:119) [nifi-framework-core-0.3.0.jar:0.3.0] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_66] at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) [na:1.8.0_66] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180) [na:1.8.0_66] at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294) [na:1.8.0_66] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_66] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_66] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_66]