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From rmetzger <...@git.apache.org>
Subject [GitHub] flink pull request: FLINK-2740 Adding flink-connector-nifi module ...
Date Thu, 01 Oct 2015 10:26:44 GMT
Github user rmetzger commented on the pull request:

    I followed the tutorial for Nifi that you posted into the pull request. Thanks a lot for
the good instructions. I was able to start it and get it to run in a few minutes.
    However, when starting the source topology, I got the following error:
    10/01/2015 12:23:47	Source: Custom Source -> Map -> Sink: Unnamed(2/8) switched
    10/01/2015 12:23:47	Source: Custom Source -> Map -> Sink: Unnamed(4/8) switched
    	at org.apache.flink.streaming.connectors.nifi.NiFiSource.run(NiFiSource.java:65)
    	at org.apache.flink.streaming.api.operators.StreamSource.run(StreamSource.java:57)
    	at org.apache.flink.streaming.runtime.tasks.SourceStreamTask.run(SourceStreamTask.java:57)
    	at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:198)
    	at org.apache.flink.runtime.taskmanager.Task.run(Task.java:579)
    	at java.lang.Thread.run(Thread.java:745)
    it seems that the `final Transaction transaction = client.createTransaction(TransferDirection.RECEIVE);`
call is returning null.
    This is what my NiFi screen looks like: http://i.imgur.com/FDFgrdu.png

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