There is 15 billion row data. 80 different column grouping and addition operations are performing.
But gets stuck at 199+1.
why does this happen? what can i do to solve?
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Does this answer your question? [Handling Skew data in apache spark production scenario](https://stackoverflow.com/questions/51017314/handling-skew-data-in-apache-spark-production-scenario) – Vincent Doba Jan 07 '22 at 09:14