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https://issues.apache.org/jira/browse/HDFS-7582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14635079#comment-14635079
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Hudson commented on HDFS-7582:
------------------------------
SUCCESS: Integrated in Hadoop-Yarn-trunk #993 (See
[https://builds.apache.org/job/Hadoop-Yarn-trunk/993/])
HDFS-7582. Enforce maximum number of ACL entries separately per access and
default. (Contributed by Vinayakumar B) (vinayakumarb: rev
29cf887b226f4ab3c336a6e681db5e8e70699d66)
* hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
*
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestAclTransformation.java
*
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/AclTransformation.java
> Enforce maximum number of ACL entries separately per access and default.
> ------------------------------------------------------------------------
>
> Key: HDFS-7582
> URL: https://issues.apache.org/jira/browse/HDFS-7582
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: namenode
> Affects Versions: 2.4.0
> Reporter: Vinayakumar B
> Assignee: Vinayakumar B
> Fix For: 2.8.0
>
> Attachments: HDFS-7582-001.patch, HDFS-7582-01.patch,
> HDFS-7582-02.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.
> It would be better to enforce the maximum of 32 entries separately per access
> and default. This would be consistent with our observations testing ACLs on
> other file systems, such as XFS and ext3.
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