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Answer: Implement a data sampling technique to identify the cause of the skew and then apply a data skew mechanism to redistribute the data.
Option B is the correct approach as it involves identifying the cause of the data skew through data sampling techniques and then implementing a mechanism to redistribute the data. This ensures data quality and improves the performance of distributed processing jobs. Option A may not be cost-effective and does not address the root cause of the issue. Option C is incorrect as data skew can significantly impact performance. Option D is not a viable solution as it involves losing valuable data.
Author: LeetQuiz Editorial Team
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In a large-scale data processing system, you have identified a potential issue with data skew affecting the performance of your distributed processing jobs. How would you address this issue to ensure data quality and improve performance?
A
Increase the number of nodes in the cluster to distribute the load more evenly.
B
Implement a data sampling technique to identify the cause of the skew and then apply a data skew mechanism to redistribute the data.
C
Ignore the issue, as data skew is a common occurrence in distributed systems and does not impact performance.
D
Remove the skewed data from the dataset to simplify the processing.
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