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https://issues.apache.org/jira/browse/NIFI-4747?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16316566#comment-16316566
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Pierre Villard edited comment on NIFI-4747 at 1/8/18 4:44 PM:
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Hi [~jugi], as you can see in the stacktrace:
{noformat}
PropertyDescriptor[Directory] has invalid value /nifi/pele/pele2rtdp/20180108.
The directory does not exist.
{noformat}
You're trying to get some data from an HDFS directory that does not exist.
That's why it's failing.
[edit]
To add some additional info - the processor will validate its configuration
even if it's not going to be executed before a given time (cron scheduling).
And part of this validation is to check that the configured directory exists.
This error will be raised until the directory exists on HDFS.
was (Author: pvillard):
Hi [~jugi], as you can see in the stacktrace:
{noformat}
PropertyDescriptor[Directory] has invalid value /nifi/pele/pele2rtdp/20180108.
The directory does not exist.
{noformat}
You're trying to get some data from an HDFS directory that does not exist.
That's why it's failing.
> GetHDFS Scheduling via CRON shows an error before it is scheduled
> -----------------------------------------------------------------
>
> Key: NIFI-4747
> URL: https://issues.apache.org/jira/browse/NIFI-4747
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.2.0, 1.4.0
> Environment: Linux, Windows
> Reporter: Julian Gimbel
> Priority: Blocker
> Attachments: gethdfs_cron_scheduling.PNG,
> gethdfs_cron_scheduling_error.png
>
>
> We schedule a getHDFS Processor CRON driven at "0 0 15 * * ?" so that it
> should run at 15:00:00 every day. If we start the processor it gives an error
> message even before CRON should have triggered the Processor as shown below.
> The question is why that is happening and how can it be fixed?
> 2018-01-08 14:43:01,242 ERROR [StandardProcessScheduler Thread-5]
> o.a.n.controller.StandardProcessorNode Failed to invoke @OnScheduled method
> due to java.lang.RuntimeException: Failed while executing one of processor's
> OnScheduled task.
> java.lang.RuntimeException: Failed while executing one of processor's
> OnScheduled task.
> at
> org.apache.nifi.controller.StandardProcessorNode.invokeTaskAsCancelableFuture(StandardProcessorNode.java:1483)
> at
> org.apache.nifi.controller.StandardProcessorNode.access$000(StandardProcessorNode.java:103)
> at
> org.apache.nifi.controller.StandardProcessorNode$1.run(StandardProcessorNode.java:1302)
> at
> java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.run(FutureTask.java:266)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
> at
> java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
> 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)
> Caused by: java.util.concurrent.ExecutionException:
> java.lang.reflect.InvocationTargetException
> at java.util.concurrent.FutureTask.report(FutureTask.java:122)
> at java.util.concurrent.FutureTask.get(FutureTask.java:206)
> at
> org.apache.nifi.controller.StandardProcessorNode.invokeTaskAsCancelableFuture(StandardProcessorNode.java:1466)
> ... 9 common frames omitted
> Caused by: java.lang.reflect.InvocationTargetException: null
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:137)
> at
> org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:125)
> at
> org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotations(ReflectionUtils.java:70)
> at
> org.apache.nifi.util.ReflectionUtils.invokeMethodsWithAnnotation(ReflectionUtils.java:47)
> at
> org.apache.nifi.controller.StandardProcessorNode$1$1.call(StandardProcessorNode.java:1306)
> at
> org.apache.nifi.controller.StandardProcessorNode$1$1.call(StandardProcessorNode.java:1302)
> ... 6 common frames omitted
> Caused by: java.io.IOException: PropertyDescriptor
> PropertyDescriptor[Directory] has invalid value
> /nifi/pele/pele2rtdp/20180108. The directory does not exist.
> at
> org.apache.nifi.processors.hadoop.GetHDFS.onScheduled(GetHDFS.java:242)
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