Steve Loughran created HADOOP-13611:
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Summary: FileSystem/s3a processDeleteOnExit to skip the exists()
check
Key: HADOOP-13611
URL: https://issues.apache.org/jira/browse/HADOOP-13611
Project: Hadoop Common
Issue Type: Sub-task
Components: fs, fs/s3
Affects Versions: 2.7.3
Reporter: Steve Loughran
Priority: Minor
If you look at {{FileSystem.processDeleteOnExit()}}, it does an exists() check
for each entry, before calling delete().
That exists() check is superfluous; on s3 it add an extra 1-4 HTTP GETs
This could be fixed with a subclass in s3a to avoid it, but as the call is
superfluous in *all* filesystems, it could be removed in {{FileSystem}} and so
picked up by all object stores.
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