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https://issues.apache.org/jira/browse/HDFS-8698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14734162#comment-14734162
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J.Andreina commented on HDFS-8698:
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TestCase failures are not related to this patch.
Please review.
> Add "-direct" flag option for fs copy so that user can choose not to create
> "._COPYING_" file
> ---------------------------------------------------------------------------------------------
>
> Key: HDFS-8698
> URL: https://issues.apache.org/jira/browse/HDFS-8698
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: fs
> Affects Versions: 2.7.0
> Reporter: Chen He
> Assignee: J.Andreina
> Attachments: HDFS-8698.1.patch, HDFS-8698.2.patch, HDFS-8698.3.patch
>
>
> Because CLI is using CommandWithDestination.java which add "._COPYING_" to
> the tail of file name when it does the copy. For blobstore like S3 and Swift,
> to create "._COPYING_" file and rename it is expensive. "-direct" flag can
> allow user to avoiding the "._COPYING_" file.
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