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https://issues.apache.org/jira/browse/HADOOP-13230?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Steve Loughran reassigned HADOOP-13230:
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Assignee: Steve Loughran
> S3A to optionally retain directory markers; look under a marker for files
> when needEmptyDir=true
> ------------------------------------------------------------------------------------------------
>
> Key: HADOOP-13230
> URL: https://issues.apache.org/jira/browse/HADOOP-13230
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Affects Versions: 2.9.0
> Reporter: Aaron Fabbri
> Assignee: Steve Loughran
> Priority: Major
>
> Users of s3a may not realize that, in some cases, it does not interoperate
> well with other s3 tools, such as the AWS CLI. (See HIVE-13778, IMPALA-3558).
> Specifically, if a user:
> - Creates an empty directory with hadoop fs -mkdir s3a://bucket/path
> - Copies data into that directory via another tool, i.e. aws cli.
> - Tries to access the data in that directory with any Hadoop software.
> Then the last step fails because the fake empty directory blob that s3a wrote
> in the first step, causes s3a (listStatus() etc.) to continue to treat that
> directory as empty, even though the second step was supposed to populate the
> directory with data.
> I wanted to document this fact for users. We may mark this as not-fix, "by
> design".. May also be interesting to brainstorm solutions and/or a config
> option to change the behavior if folks care.
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