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https://issues.apache.org/jira/browse/HDFS-7474?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14235225#comment-14235225
 ] 

Hadoop QA commented on HDFS-7474:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12685198/HDFS-7474.000.patch
  against trunk revision 0653918.

    {color:red}-1 patch{color}.  The patch command could not apply the patch.

Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/8927//console

This message is automatically generated.

> Avoid resolve path in FSPermissionChecker
> -----------------------------------------
>
>                 Key: HDFS-7474
>                 URL: https://issues.apache.org/jira/browse/HDFS-7474
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namenode
>            Reporter: Jing Zhao
>            Assignee: Jing Zhao
>         Attachments: HDFS-7474.000.patch
>
>
> Currently for an typical namenode operation a path can be resolved multiple 
> times. Usually the FSPermissionChecker first takes the path string as input 
> and resolve the path before the real checking. After permission checking the 
> path is then resolved again (and again) for real operations in FSNamesystem 
> and FSDirectory. Ideally we should resolve the path only once, and use 
> INodesInPath internally afterwards. As a first step, we can start from 
> avoiding path resolving in FSPermissionChecker.



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