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From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-5269) PhoenixAccessController should use AccessChecker instead of AccessControlClient for permission checks
Date Fri, 24 May 2019 16:41:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-5269?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16847708#comment-16847708
] 

Andrew Purtell commented on PHOENIX-5269:
-----------------------------------------

bq. Jenkins is failing for PHOENIX-5269 for 4.x-HBase-1.5 branch. [~tdsilva] Do you have any
idea why it's not able to pull hbase:1.5.0-SNAPSHOT dependency is not able to pull? I can
see this dependency in previous build but not available in maven repo.

We probably have to add a repository entry for the Apache snapshots repo to the POM while
using the SNAPSHOT version. This would be an oversight made when creating the 1.5 branch.
I will fix it on a new issue 

> PhoenixAccessController should use AccessChecker instead of AccessControlClient for permission
checks
> -----------------------------------------------------------------------------------------------------
>
>                 Key: PHOENIX-5269
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-5269
>             Project: Phoenix
>          Issue Type: Bug
>    Affects Versions: 4.14.1, 4.14.2
>            Reporter: Andrew Purtell
>            Assignee: Kiran Kumar Maturi
>            Priority: Critical
>             Fix For: 4.15.0, 4.14.2
>
>         Attachments: PHOENIX-5269-4.14-HBase-1.4.patch, PHOENIX-5269-4.14-HBase-1.4.v1.patch,
PHOENIX-5269-4.14-HBase-1.4.v2.patch, PHOENIX-5269.4.14-HBase-1.4.v3.patch, PHOENIX-5269.4.14-HBase-1.4.v4.patch,
PHOENIX-5269.4.x-HBase-1.4.v1.patch, PHOENIX-5269.4.x-HBase-1.5.v1.patch
>
>
> PhoenixAccessController should use AccessChecker instead of AccessControlClient for permission
checks. 
> In HBase, every RegionServer's AccessController maintains a local cache of permissions.
At startup time they are initialized from the ACL table. Whenever the ACL table is changed
(via grant or revoke) the AC on the ACL table "broadcasts" the change via zookeeper, which
updates the cache. This is performed and managed by TableAuthManager but is exposed as API
by AccessChecker. AccessChecker is the result of a refactor that was committed as far back
as branch-1.4 I believe.
> Phoenix implements its own access controller and is using the client API AccessControlClient
instead. AccessControlClient does not cache nor use the ZK-based cache update mechanism, because
it is designed for client side use.
> The use of AccessControlClient instead of AccessChecker is not scalable. Every permissions
check will trigger a remote RPC to the ACL table, which is generally going to be a single
region hosted on a single RegionServer. 



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