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From "Duo Zhang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-18659) Use HDFS ACL to give user the ability to read snapshot directly on HDFS
Date Wed, 23 Aug 2017 02:38:02 GMT
Duo Zhang created HBASE-18659:
---------------------------------

             Summary: 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


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 on the table directory on HDFS for the users who
have the permission to read the table on HBase.

Suggestions are welcomed.



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