Steve Loughran created HADOOP-17323:
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Summary: s3a getFileStatus("/") to skip IO
Key: HADOOP-17323
URL: https://issues.apache.org/jira/browse/HADOOP-17323
Project: Hadoop Common
Issue Type: Sub-task
Components: fs/s3
Affects Versions: 3.3.0
Reporter: Steve Loughran
Calls to "hadoop fs ls s3a://something/" add a full getFileStatus() sequence
(HEAD, LIST, LIST) because FsShell Ls calls getFileStatus on every input.
We should just build a root status entry immediately. There's one consequence:
if a user has disabled the s3a existence probe, there will be no checks for the
bucket existence. But that can be viewed as a "well, that's what happens"
behaviour
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