Question 185

You issue a new batch job to Dataflow. The job starts successfully, processes a few elements, and then suddenly fails and shuts down. You navigate to the
Dataflow monitoring interface where you find errors related to a particular DoFn in your pipeline. What is the most likely cause of the errors?

A. Job validation
B. Exceptions in worker code
C. Graph or pipeline construction
D. Insufficient permissions

While your job is running, you might encounter errors or exceptions in your worker code. These errors generally mean that the DoFns in your pipeline code have generated unhandled exceptions, which result in failed tasks in your Dataflow job. Exceptions in user code (for example, your DoFn instances) are reported in the Dataflow monitoring interface. Reference (Lists all answer choices and when to pick each one): https://cloud.google.com/dataflow/docs/guides/troubleshooting-your-pipeline#Causes

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