steveloughran commented on issue #1442: HADOOP-16570. S3A committers encounter 
scale issues
URL: https://github.com/apache/hadoop/pull/1442#issuecomment-537213459
 
 
   just pushed up a rebased update; tries to address all of Ryans comments, 
plus I use Tasks to parallelise the partition deletion. If a job writes to 
multiple partitions this way -speed up.
   
   tested, s3 ireland with -Dparallel-tests -DtestsThreadCount=12 -Ds3guard 
-Ddynamo

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