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https://issues.apache.org/jira/browse/HADOOP-18117?focusedWorklogId=723573&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-723573
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ASF GitHub Bot logged work on HADOOP-18117:
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Author: ASF GitHub Bot
Created on: 09/Feb/22 10:52
Start Date: 09/Feb/22 10:52
Worklog Time Spent: 10m
Work Description: mohan3d opened a new pull request #3970:
URL: https://github.com/apache/hadoop/pull/3970
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### Description of PR
Add an option to preserve root directory permissions when using **distcp**
### How was this patch tested?
dev-support/bin/test-patch against trunk and unittest
### For code changes:
- [x] Does the title or this PR starts with the corresponding JIRA issue id
(e.g. 'HADOOP-17799. Your PR title ...')?
- [ ] Object storage: have the integration tests been executed and the
endpoint declared according to the connector-specific documentation?
- [ ] If adding new dependencies to the code, are these dependencies
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Issue Time Tracking
-------------------
Worklog Id: (was: 723573)
Remaining Estimate: 0h
Time Spent: 10m
> Add an option to preserve root directory permissions
> ----------------------------------------------------
>
> Key: HADOOP-18117
> URL: https://issues.apache.org/jira/browse/HADOOP-18117
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Mohanad Elsafty
> Priority: Minor
> Time Spent: 10m
> Remaining Estimate: 0h
>
> As mentioned in https://issues.apache.org/jira/browse/HADOOP-15211
>
> If *-update* or *-overwrite* is being passed when *distcp* used, the root
> directory will be skipped in two occasions (CopyListing#doBuildListing &
> CopyCommitter#preserveFileAttributesForDirectories), which will ignore root
> directory's attributes.
>
> We face the same issue when distcp huge data between clusters and it takes
> too much effort to update root directories attributes manually.
>
> From the earlier ticket it's obvious why this behaviour is there, but
> sometime we need to enforce root directory update hence I will add a new
> option for distcp to enable someone (who understands the need of this and
> know what they are doing) to enforce the update of root directory's
> attributes (permissions, ownership, ...)
>
> It should be simple one, something like this
> {code:java}
> $ hadoop distcp -p -update -updateRootDirectoryAttributes /a/b/c /a/b/d {code}
> This behaviour is optional and will be *false* by default. (it should not
> affect existing *distcp* users).
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