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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-7582) Limit the number of default ACL entries to Half of maximum entries (16)
Date Mon, 05 Jan 2015 09:14:34 GMT

    [ https://issues.apache.org/jira/browse/HDFS-7582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14264382#comment-14264382
] 

Hadoop QA commented on HDFS-7582:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12690009/HDFS-7582-001.patch
  against trunk revision ddc5be4.

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified
test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of
javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:red}-1 findbugs{color}.  The patch appears to introduce 1 new Findbugs (version
2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number
of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-hdfs-project/hadoop-hdfs.

Test results: https://builds.apache.org/job/PreCommit-HDFS-Build/9140//testReport/
Findbugs warnings: https://builds.apache.org/job/PreCommit-HDFS-Build/9140//artifact/patchprocess/newPatchFindbugsWarningshadoop-hdfs.html
Console output: https://builds.apache.org/job/PreCommit-HDFS-Build/9140//console

This message is automatically generated.

> Limit the number of default ACL entries to Half of maximum entries (16)
> -----------------------------------------------------------------------
>
>                 Key: HDFS-7582
>                 URL: https://issues.apache.org/jira/browse/HDFS-7582
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: namenode
>            Reporter: Vinayakumar B
>            Assignee: Vinayakumar B
>         Attachments: HDFS-7582-001.patch
>
>
> Current ACL limits are only on the total number of entries.
> But there can be a situation where number of default entries for a directory will be
more than half of the maximum entries, i.e. > 16.
> In such case, under this parent directory only files can be created which will have ACLs
inherited using parent's default entries.
> But when directories are created, total number of entries will be more than the maximum
allowed, because sub-directories copies both inherited ACLs as well as default entries.
> Since currently there is no check while copying ACLs from default ACLs directory creation
succeeds, but any modification (only permission on one entry also) on the same ACL will fail.
> So it would be better to restrict the default entries to 16.



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