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https://issues.apache.org/jira/browse/HADOOP-13626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15957633#comment-15957633
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Chris Douglas commented on HADOOP-13626:
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It should be harmless to backport to branch-2
> Remove distcp dependency on FileStatus serialization
> ----------------------------------------------------
>
> Key: HADOOP-13626
> URL: https://issues.apache.org/jira/browse/HADOOP-13626
> Project: Hadoop Common
> Issue Type: Bug
> Components: tools/distcp
> Reporter: Chris Douglas
> Assignee: Chris Douglas
> Fix For: 3.0.0-alpha2
>
> Attachments: HADOOP-13626.001.patch, HADOOP-13626.002.patch,
> HADOOP-13626.003.patch, HADOOP-13626.004.patch
>
>
> DistCp uses an internal struct {{CopyListingFileStatus}} to record metadata.
> Because this record extends {{FileStatus}}, it also relies on the
> {{Writable}} contract from that type. Because DistCp performs its checks on a
> subset of the fields (i.e., does not actually rely on {{FileStatus}} as a
> supertype), these types should be independent.
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