Github user pvillard31 commented on the issue:
https://github.com/apache/nifi/pull/379
Thanks for the review @apiri!
I still need to take into account some of your comments but I rebased the
PR against master. While doing some additional testing, for a reason I can't
explain yet, I was unable to use the ListProcessor:
````
2016-06-21 23:28:56,127 WARN [Timer-Driven Process Thread-9]
o.a.n.c.t.ContinuallyRunProcessorTask Administratively Yielding
ListAlluxio[id=42835c14-3896-47e0-95ae-ce8266e7c030] due to uncaught Exception:
java.lang.NullPointerException: Name is null
2016-06-21 23:28:56,130 WARN [Timer-Driven Process Thread-9]
o.a.n.c.t.ContinuallyRunProcessorTask
java.lang.NullPointerException: Name is null
at java.lang.Enum.valueOf(Enum.java:236) ~[na:1.8.0_77]
at
alluxio.exception.AlluxioExceptionType.valueOf(AlluxioExceptionType.java:19)
~[na:na]
at alluxio.exception.AlluxioException.from(AlluxioException.java:69)
~[na:na]
at alluxio.AbstractClient.retryRPC(AbstractClient.java:324) ~[na:na]
at
alluxio.client.file.FileSystemMasterClient.listStatus(FileSystemMasterClient.java:271)
~[na:na]
at
alluxio.client.file.BaseFileSystem.listStatus(BaseFileSystem.java:188) ~[na:na]
at
alluxio.client.file.BaseFileSystem.listStatus(BaseFileSystem.java:179) ~[na:na]
at
org.apache.nifi.processors.alluxio.ListAlluxio.onTrigger(ListAlluxio.java:91)
~[na:na]
at
org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
~[nifi-api-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
at
org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1077)
~[nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
at
org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:136)
[nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
at
org.apache.nifi.controller.tasks.ContinuallyRunProcessorTask.call(ContinuallyRunProcessorTask.java:47)
[nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
at
org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:123)
[nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
at
java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[na:1.8.0_77]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
[na:1.8.0_77]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
[na:1.8.0_77]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
[na:1.8.0_77]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[na:1.8.0_77]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[na:1.8.0_77]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_77]
````
I'll try to dig more into this tomorrow. Otherwise, a guy from Alluxio
reached me to propose his help if needed on this PR, I guess I can ask him to
have a look and make some comments.
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