2016-11-30 12:00:06,453 INFO [Provenance Maintenance Thread-3] o.a.n.p.PersistentProvenanceRepository Created n$ 2016-11-30 12:00:06,482 INFO [Provenance Repository Rollover Thread-1] o.a.n.p.PersistentProvenanceRepository S$ 2016-11-30 12:00:06,482 INFO [Provenance Repository Rollover Thread-1] o.a.n.p.PersistentProvenanceRepository S$ 2016-11-30 12:00:21,588 ERROR [StandardProcessScheduler Thread-6] o.apache.nifi.processors.hadoop.PutHDFS PutHD$ 2016-11-30 12:00:21,590 ERROR [StandardProcessScheduler Thread-7] org.apache.nifi.engine.FlowEngine A flow cont$ java.util.concurrent.ExecutionException: java.lang.reflect.InvocationTargetException at java.util.concurrent.FutureTask.report(FutureTask.java:122) ~[na:1.8.0_111] at java.util.concurrent.FutureTask.get(FutureTask.java:192) ~[na:1.8.0_111] at org.apache.nifi.engine.FlowEngine.afterExecute(FlowEngine.java:100) ~[na:na] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1150) [na:1.8.0_111] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_111] at java.lang.Thread.run(Thread.java:745) [na:1.8.0_111] Caused by: java.lang.reflect.InvocationTargetException: null at sun.reflect.GeneratedMethodAccessor297.invoke(Unknown Source) ~[na:na] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_111]