CODEWITHSUNDEEP
apache-nifi
FAA
FAA

Reputation: 179

Apache Nifi GetTwitter

I have a simple question, as I am new to NiFi.

I have a GetTwitter processor set up and configured (assuming correctly). I have the Twitter Endpoint set to Sample Endpoint. I run the processor and it runs, but nothing happens. I get no input/output

How do I troubleshoot what it is doing (or in this case not doing)?

Upvotes: 1

Views: 881

Answers (3)

Dennis Jaheruddin
Dennis Jaheruddin

Reputation: 21561

In general I suppose this topic can be debugged by setting the loglevel to DEBUG. However, in my case the issue was resolved more easily:

I just set up a new cluster, and decided to copy all twitter keys and secrets to notepad first.

It turns out that despite carefully copying the keys from twitter, one of them had a leading tab. When pasting directly into the GetTwitter processer, this would not show, but fortunately it showed up in notepad and I was able to remove it and make this work.

Upvotes: 0

cfeduke
cfeduke

Reputation: 23236

In my case its because there are two sensitive values set. According to the documentation when a sensitive value is set, the nifi.properties file's nifi.sensitive.props.key value must be set - it is an empty string by default using HortonWorks DataPlatform distribution. I set this to some random string (literally random_STRING but you can use anything) and re-created my process from the template and it began working.

Upvotes: 0

James
James

Reputation: 11931

A couple things you might look at:

  • What activity does the processor show? You can look at the metrics to see if anything has been attempted (Tasks/Time) as well as if it succeeded (Out) enter image description here
  • Stop the downstream processor temporarily to make any output FlowFiles visible in the connection queue.
  • Are there errors? Typically these appear in the top-left corner as a yellow icon
  • Are there related messages in the logs/nifi-app.log file?

It might also help us help you if you describe the GetTwitter Property settings a bit more. Can you share a screenshot (minus keys)?

Upvotes: 2

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