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https://issues.apache.org/jira/browse/HDFS-4685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13839139#comment-13839139
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Chris Nauroth commented on HDFS-4685:
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Colin, thanks for taking a look. You're correct that inode flattening/features
is not mentioned anywhere in this revision of the design doc. That's mostly
because the inode flattening was being done concurrently while I was writing
the doc, so it wasn't quite ready for consideration.
To compensate for this, I've structured the project plan so that the storage
optimization work won't be done until late in the cycle. HDFS-5595 is going to
provide just the simplest possible implementation of an {{AclManager}}, so that
we can proceed on implementing and testing the functionality. Sub-tasks like
HDFS-5620 start optimizing. Before we start on that work though, we'll have
several weeks to reconsider this part of the design, and specifically consider
use of flattening/features. By this time, we'll also have built up test suites
on the functionality, and that's going to provide a safety net for
experimentation in this area.
> Implementation of ACLs in HDFS
> ------------------------------
>
> Key: HDFS-4685
> URL: https://issues.apache.org/jira/browse/HDFS-4685
> Project: Hadoop HDFS
> Issue Type: New Feature
> Components: hdfs-client, namenode, security
> Affects Versions: 1.1.2
> Reporter: Sachin Jose
> Assignee: Chris Nauroth
> Attachments: HDFS-ACLs-Design-1.pdf
>
>
> Currenly hdfs doesn't support Extended file ACL. In unix extended ACL can be
> achieved using getfacl and setfacl utilities. Is there anybody working on
> this feature ?
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