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H13-711_V3.5 · Question #354
H13-711_V3.5 Question #354: Real Exam Question with Answer & Explanation
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Question
In the Spark SQL table, there are often many small files (the size is much smaller than the HDFS block size). In this case, Spark will start more Tasks to process these small files. When there is a Shuffle operation in the SQL logic, It will greatly increase the number of hash buckets, which will seriously affect performance.
Options
- ATrue
- BFalse
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