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https://issues.apache.org/jira/browse/MAPREDUCE-1548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Rodrigo Schmidt updated MAPREDUCE-1548:
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Attachment: MAPREDUCE-1548.0.patch
It's time to restart this this discussion.
This is a something that contrib/raid relies on and it has to be fixed if we
plan to make raid an integral part of Hadoop.
The one thing raid needs is hadoop archives to preserve modification times.
This patch adds all properties (modTime, permissions, owner, group) to the har
index file but it only exposes modification times on HarFileSystem. Making
HarFileSystem respect the access permissions and properties during would make
the patch too complicated and harder to review.
I propose that we create a separate JIRA that will concentrate on making sure
HarFileSystem respects access permissions.
> Hadoop archives should be able to preserve times and other properties from
> original files
> -----------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-1548
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1548
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: harchive
> Reporter: Rodrigo Schmidt
> Assignee: Rodrigo Schmidt
> Attachments: MAPREDUCE-1548.0.patch
>
>
> Files inside hadoop archives don't keep their original:
> - modification time
> - access time
> - permission
> - owner
> - group
> all such properties are currently taken from the file storing the archive
> index, and not the stored files. This doesn't look very correct.
> There should be possible to preserve the original properties of the stored
> files.
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