[jira] [Commented] (HBASE-18659) Use HDFS ACL to give user the ability to read snapshot directly on HDFS

["Nick Dimiduk (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-18659?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17157663#comment-17157663 ] 

Nick Dimiduk commented on HBASE-18659:
--------------------------------------

[~meiyi] I missed this for the 2.3.0 release, but it would be great if you could add a release note summarizing for the operator how to use this feature.

> Use HDFS ACL to give user the ability to read snapshot directly on HDFS
> -----------------------------------------------------------------------
>
>                 Key: HBASE-18659
>                 URL: https://issues.apache.org/jira/browse/HBASE-18659
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Duo Zhang
>            Assignee: Yi Mei
>            Priority: Major
>             Fix For: 3.0.0-alpha-1, 2.3.0
>
>
> On the dev meetup notes in Shenzhen after HBaseCon Asia, there is a topic about the permission to read hfiles on HDFS directly.
> {quote}
> For client-side scanner going against hfiles directly; is there a means of being able to pass the permissions from hbase to hdfs?
> {quote}
> And at Xiaomi we also face the same problem. {{SnapshotScanner}} is much faster and consumes less resources, but only super use has the ability to read hfile directly on HDFS.
> So here we want to use HDFS ACL to address this problem.
> https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HdfsPermissionsGuide.html#ACLs_File_System_API
> The basic idea is to set acl and default acl on the ns/table/cf directory on HDFS for the users who have the permission to read the table on HBase.
> Suggestions are welcomed.



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