Steve Loughran created HADOOP-16493:
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Summary: S3AFilesystem.initiateRename() can skip check on
dest.parent status if src has same parent
Key: HADOOP-16493
URL: https://issues.apache.org/jira/browse/HADOOP-16493
Project: Hadoop Common
Issue Type: Sub-task
Components: fs/s3
Affects Versions: 3.3.0
Reporter: Steve Loughran
Speedup inferred from debug logs (probably not a regression from HADOOP-15183,
more something we'd not noticed).
There's a check in {{initiateRename()}} to make sure the parent dir of the dest
exists.
If dest.getParent() is src.getParent() (i.e. a same dire rename) or is any
other ancestor, we don't need those HEAD/LIST requests.
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