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https://issues.apache.org/jira/browse/HADOOP-13407?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran resolved HADOOP-13407.
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Resolution: Won't Fix
> s3a directory housekeeping operations to be done in async thread
> ----------------------------------------------------------------
>
> Key: HADOOP-13407
> URL: https://issues.apache.org/jira/browse/HADOOP-13407
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 2.8.0, 3.1.0, 2.9.1, 3.0.3
> Reporter: Steve Loughran
> Priority: Minor
>
> Some of the delays on s3a calls are due to cleaning up parent pseudo
> directories; repeated getParent/GET calls to look for the entries, then to
> delete them.
> We could possibly make this asynchronous; the core semantics would be
> retained, just the cleanup delayed.
> Risks?
> # while the cleanup is in progress, getFileStatus of parent dirs could imply
> that the parent dir is still empty
> # failure
> of course, these risks exist today. We really need an s3a fsck
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