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Ran 22 Jul 2019 01:28PM UTC

Files 1067

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Committed 22 Jul 2019 01:28PM UTC coverage: 77.656% (-0.004%) from 77.66%

Job # 1854.1

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push

jenkins

Committed by kunal642

Commit Message

[HOTFIX] Added taskid as UUID while writing files in fileformat to avoid corrupting.

Problem: In FIleFormat write, carbon is using task id as System.nanoTime()
when multiple tasks launched concurrently, there is a chance that two task
can have same id very rarely. Due to this, two spark task launched for one
insert will have same carbondata file name. so, when both tasks write to one file,
chances are more to corrupt the file. which leads in query failure

solution: use unique uuid task id instead of nano seconds.

This closes #3325

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