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https://issues.apache.org/jira/browse/HDFS-17478?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17838446#comment-17838446
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ASF GitHub Bot commented on HDFS-17478:
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hadoop-yetus commented on PR #6749:
URL: https://github.com/apache/hadoop/pull/6749#issuecomment-2062949405

   :broken_heart: **-1 overall**
   
   
   
   
   
   
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any new or modified tests. Please justify why no new tests are needed for this 
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[/branch-mvninstall-root.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/branch-mvninstall-root.txt)
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[/branch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/branch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1.txt)
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[/branch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/branch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06.txt)
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[/buildtool-branch-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/buildtool-branch-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt)
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[/branch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/branch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt)
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[/branch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/branch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1.txt)
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[/branch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/branch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06.txt)
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[/branch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/branch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt)
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[/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/patch-mvninstall-hadoop-hdfs-project_hadoop-hdfs.txt)
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[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1.txt)
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[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1.txt)
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[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06.txt)
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[/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/patch-compile-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06.txt)
 |  hadoop-hdfs in the patch failed with JDK Private 
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issues.  |
   | -0 :warning: |  checkstyle  |   0m 20s | 
[/buildtool-patch-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/buildtool-patch-checkstyle-hadoop-hdfs-project_hadoop-hdfs.txt)
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   | -1 :x: |  mvnsite  |   0m 21s | 
[/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/patch-mvnsite-hadoop-hdfs-project_hadoop-hdfs.txt)
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[/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkUbuntu-11.0.22+7-post-Ubuntu-0ubuntu220.04.1.txt)
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[/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/patch-javadoc-hadoop-hdfs-project_hadoop-hdfs-jdkPrivateBuild-1.8.0_402-8u402-ga-2ubuntu1~20.04-b06.txt)
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   | -1 :x: |  spotbugs  |   0m 22s | 
[/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/patch-spotbugs-hadoop-hdfs-project_hadoop-hdfs.txt)
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   | +1 :green_heart: |  shadedclient  |   4m 19s |  |  patch has no errors 
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   | -1 :x: |  unit  |   0m 10s | 
[/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt](https://ci-hadoop.apache.org/job/hadoop-multibranch/job/PR-6749/2/artifact/out/patch-unit-hadoop-hdfs-project_hadoop-hdfs.txt)
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   | +0 :ok: |  asflicense  |   0m 20s |  |  ASF License check generated no 
output?  |
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   | GITHUB PR | https://github.com/apache/hadoop/pull/6749 |
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> FSPermissionChecker to avoid obtaining a new AccessControlEnforcer instance 
> before each authz call
> --------------------------------------------------------------------------------------------------
>
>                 Key: HDFS-17478
>                 URL: https://issues.apache.org/jira/browse/HDFS-17478
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: namanode
>            Reporter: Madhan Neethiraj
>            Assignee: Madhan Neethiraj
>            Priority: Major
>              Labels: pull-request-available
>         Attachments: HDFS-17478.patch
>
>
> An instance of AccessControlEnforcer is obtained from the registered 
> INodeAttributeProvider before every call made to authorizer. This can be 
> avoided by initializing the AccessControlEnforcer instance during 
> construction of FsPermissionChecker and using it in every subsequent call to 
> the authorizer. This will eliminate the unnecessary overhead in highly 
> performance sensitive authz code path.
>  
> CC: [~abhay], [~arp], [~swagle]



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