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https://issues.apache.org/jira/browse/HADOOP-17323?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17224694#comment-17224694
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Mukund Thakur commented on HADOOP-17323:
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How will we build a root status entry immediately?
Sorry if I am missing something basic here.
> 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
> Priority: Major
>
> 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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