1 Answers

4
votes

In this case:

part-00000 signifies Split (of a) Partition number.

-deb4a3d4-d8c3-4983-8756-ad7e0b29e780 signifies random UUID to allow concurrent write processes in Spark Actions that do not conflict.

"c000" signifies a counter indicating the number of times a file has been written for this partition. here is it is zero and it counts on. Not sure what happens if 999 exceeded, to be honest.