What will be the skew for,
input file->partition by key-> partition by round robin->output file
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Answer / Shiv Shakti Shankar
In a data processing pipeline that includes partitioning by both key and round robin, the skew refers to the variation in the number of records distributed across partitions. While it's difficult to predict an exact value for the skew without knowing the input data distribution, using round robin as the second level of partitioning helps to reduce overall skew and balance the load between partitions.
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