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apache-nifihortonworks-dataflow

Internal 500 Error for controller service : HDF Nifi with 3 Node cluster

I have installed HDF 2.1.2 with 3 node Nifi 1.1 cluster and I am trying to configure controller service in it. I created a simple ExecuteHQL processor which depends on ThriftConnectionPool controller service.

I dragged ExecuteProcessor on canvas and as soon as I clicked on gear icon for configuring controller service , it throws runtime exception in log.

Attempting request for (anonymous) GET http://<hostname>:9090/nifi-api/flow/process-groups/83490f62-015c-1000-0000-00004da8f033/controller-

HTTP 500 Internal Server Error
Solution

  • I had duplicate controller service jar - one actual and another symlink which was causing issue.