Steve Loughran created HADOOP-18878:
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             Summary: remove/deprecate fs.s3a.multipart.purge
                 Key: HADOOP-18878
                 URL: https://issues.apache.org/jira/browse/HADOOP-18878
             Project: Hadoop Common
          Issue Type: Sub-task
          Components: fs/s3
    Affects Versions: 3.3.6
            Reporter: Steve Loughran


the fs.s3a.multipart.purge option has been in for a long time, to help avoid 
running up costs from incomplete uploads, especially during testing.

but
* adds overhead on startup (list + delete)
* dangerous if one client has a very short lifespan; all active s3a committer 
jobs will be broken
* obsoleted by s3 lifecycle rules
* and "hadoop s3guard uploads" cli.

proposed: deprecate for the next release, delete after.



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