[
https://issues.apache.org/jira/browse/HDFS-16259?focusedWorklogId=672393&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-672393
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ASF GitHub Bot logged work on HDFS-16259:
-----------------------------------------
Author: ASF GitHub Bot
Created on: 30/Oct/21 19:27
Start Date: 30/Oct/21 19:27
Worklog Time Spent: 10m
Work Description: sodonnel commented on pull request #3598:
URL: https://github.com/apache/hadoop/pull/3598#issuecomment-955580805
The two failing unit tests pass locally:
```
org.apache.hadoop.hdfs.TestRollingUpgrade.testDFSAdminRollingUpgradeCommands
org.apache.hadoop.hdfs.TestRollingUpgrade.testRollback
```
The javac warnings are because I added a try block around an already
deprecated method, so I don't think I can avoid them.
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Issue Time Tracking
-------------------
Worklog Id: (was: 672393)
Time Spent: 0.5h (was: 20m)
> Catch and re-throw sub-classes of AccessControlException thrown by any
> permission provider plugins (eg Ranger)
> --------------------------------------------------------------------------------------------------------------
>
> Key: HDFS-16259
> URL: https://issues.apache.org/jira/browse/HDFS-16259
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Reporter: Stephen O'Donnell
> Assignee: Stephen O'Donnell
> Priority: Major
> Labels: pull-request-available
> Time Spent: 0.5h
> Remaining Estimate: 0h
>
> When a permission provider plugin is enabled (eg Ranger) there are some
> scenarios where it can throw a sub-class of an AccessControlException (eg
> RangerAccessControlException). If this exception is allowed to propagate up
> the stack, it can give problems in the HDFS Client, when it unwraps the
> remote exception containing the AccessControlException sub-class.
> Ideally, we should make AccessControlException final so it cannot be
> sub-classed, but that would be a breaking change at this point. Therefore I
> believe the safest thing to do, is to catch any AccessControlException that
> comes out of the permission enforcer plugin, and re-throw an
> AccessControlException instead.
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