Câu 4: CCD-410: Cloudera Certified Developer for Apache Hadoop (CCDH)

You wrote a map function that throws a runtime exception when it encounters a control character in input data. The input supplied to your mapper contains twelve such characters totals, spread across five file splits. The first four file splits each have two control characters and the last split has four control characters. Indentify the number of failed task attempts you can expect when you run the job with mapred.max.map.attempts set to 4:

1. A. You will have forty-eight failed task attempts
2. B. You will have seventeen failed task attempts
3. C. You will have five failed task attempts
4. D. You will have twelve failed task attempts
5. E. You will have twenty failed task attempts — đáp án hiện tại