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https://issues.apache.org/jira/browse/HADOOP-19072?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Viraj Jasani resolved HADOOP-19072.
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Hadoop Flags: Reviewed
Resolution: Fixed
> S3A: expand optimisations on stores with "fs.s3a.performance.flags" for mkdir
> -----------------------------------------------------------------------------
>
> Key: HADOOP-19072
> URL: https://issues.apache.org/jira/browse/HADOOP-19072
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 3.4.0
> Reporter: Steve Loughran
> Assignee: Viraj Jasani
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.5.0, 3.4.1
>
>
> on an s3a store with fs.s3a.create.performance set, speed up other operations
> * mkdir to skip parent directory check: just do a HEAD to see if there's a
> file at the target location
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