While trying to run the SAM topology using HDF 3.0.0 sandbox, I am getting the below exception. I have only 2 components in the canvas.
1) Get input from Kafka Topic
2) Write the contents from the topic to HDFS Sink.
The engine behind the scene is Storm. While trying to execute the flow, the above mentioned error occurs.
Screenshot will make the issue clear. Upon execution of the flow, the exception occurs. Please help.
This is a strange error since its related to a kafka sink. And you dont even have a kafka sink. One of the customers also ran in to similar issue. And the error was fixed after they created a new app. Can you try creating a new app and see if it fixes the issue? Also, do you remember the steps that can be used to reproduce the issue? Did you have a kafka sink in your app at some point?