Exception "Output directory not set" when ran "FileSetExample" in CDAP UI

[qliu_us]

I ran Cdap provided example "FileSetExample version 3.5.1" on both my PC and our cluster. I got Exception in both environments. I followed the steps that described in cdap website for FileSetExample. The only thing I did differently was that I started mapreduce "WordCount" from Cdap UI. I got an error below.  Would you let me know how to get this resolved? Thanks

Lucy

16-10-12 22:10:26,807 - ERROR [MapReduceRunner-WordCount:c.c.c.i.a.r.ProgramControllerServiceAdapter@81] - Program terminated with exception
org.apache.hadoop.mapred.InvalidJobConfException: Output directory not set.
	at org.apache.hadoop.mapreduce.lib.output.FileOutputFormat.checkOutputSpecs(FileOutputFormat.java:138) ~[org.apache.hadoop.hadoop-mapreduce-client-core-2.3.0.jar:na]
	at org.apache.hadoop.mapreduce.JobSubmitter.checkSpecs(JobSubmitter.java:458) ~[org.apache.hadoop.hadoop-mapreduce-client-core-2.3.0.jar:na]

[Ali Anwar]

Hey Lucy.

Take a look at the documentation for the example: http://docs.cdap.io/cdap/3.5.0/en/examples-manual/examples/fileset-example.html.

The MapReduce needs to be run with certain runtime arguments. The docs use the CLI. If you want to run it from the UI, you will have to set the same arguments from the UI before running the program.

Regards,

Ali Anwar

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