DP-203 Develop data processing Practice Question
You have a Data Factory pipeline that runs a U-SQL script in Azure Data Lake Analytics. The script processes terabytes of data and outputs to a CSV file. The pipeline is failing with the error: 'The job failed with UserError: Script execution failed.' You need to troubleshoot the issue. Which approach should you take first?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
Review the job logs in Azure Data Lake Analytics to identify the specific script error.
The most effective first step is to examine the detailed job logs in Data Lake Analytics, which contain the actual script error. Increasing parallelism or changing output format may not address the underlying script error. Moving to Azure Synapse is a larger architectural change.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Change the output format to Parquet to reduce file size.
Why it's wrong here
Output format is unlikely to cause script execution failure.
- ✓
Review the job logs in Azure Data Lake Analytics to identify the specific script error.
Why this is correct
Job logs provide detailed error messages that pinpoint the issue.
- ✗
Migrate the U-SQL script to Azure Synapse Spark pool.
Why it's wrong here
This is a major change; troubleshooting should start with logs.
- ✗
Increase the degree of parallelism for the U-SQL job.
Why it's wrong here
This may help with performance but not with script errors.
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Senior Network & Security Engineer · founder of Courseiva
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