Kylo feed error

I am new to Kylo.

I manually deployed Kylo to a Hortonworks HDP 2.5 test cluster and reused the Nifi instance prior to kylo.

I made a selection following the example of the User Registrations and was successful.

However, when I drop the sample data file in / var / dropzone / the file is dropped (assuming it is received and read by Nifi), but the dashboard does not show any work. There is no status against the serve job.

I looked at the generated nifi process flow and there are two red processes and both are ReleaseHighWaterMark processes . Also, after checking the nifi-app.log, I found the following exception

2017-05-25 16:42:51,939 ERROR [Timer-Driven Process Thread-1] c.t.n.p.ProvenanceEventCollector ERROR PROCESSING EVENT! ProvenanceEventRecordDTO{eventId=759716, processorName=null, componentId=01a84157-0b38-14f2-d63d-c41fbd9c38a3, flowFile=ab93de46-e659-4c41-9812-94bbe2f90cfc, previous=null, eventType=CREATE, eventDetails=null, isEndOfJob=false, isBatch=true, isStream=false, feed=null}.  ERROR: null
java.lang.NullPointerException: null

      

        
        
        
      

    

There seems to be a configuration issue and there is hardly a good troubleshooting guide to be found.

Any idea?