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Is there a way to debug a custom NiFi process that is running inside the dataflow?

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Explorer

I have written a custom NiFi process for use with elasticsearch and I have tested it thoroughly outside of the DataFlow environment and it works perfect but when I drop it into the flow it throws an error message that is of no help so I was wondering if there is a way to debug the code from within the flow or produce a better error message. Any advice/help is appreciated, thanks.

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Explorer

Thank you sir! I will give it a shot.

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Contributor

I know this is an old post, but in case if future search results turn up here and someone is unclear on how to do this part of @Bryan Bende's answer:

Connecting your IDE debugger to the Java process will be specific to which IDE you are using.

I wanted to share a link to a detailed tutorial I put together for how to do this in IntelliJ IDEA: https://community.hortonworks.com/content/kbentry/106931/nifi-debugging-tutorial.html