Rod Taylor wrote:
Tell me how it behaves during the sort phase.

I ran 8 jobs simultaneously. Very high await time (1200) and it was
doing about 22MB/sec data writes. Nearly 0 reads from disk (everything
would be cached in memory).

This is during the sort part? This first writes a big file, then reads it, then sorts it. With 20M records I think the file is around 2.5GB, so eight of these would be 20GB. Do you have 20GB of RAM?

Doug

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