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https://issues.apache.org/jira/browse/HDFS-5594?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13843457#comment-13843457
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Haohui Mai commented on HDFS-5594:
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bq. By including the perms in AclEntry#equals and AclEntry#hashCode, I haven't
achieved that. I'm thinking of changing the set to something like
Map<AclEntry.Key, FsAction> to better represent the unique constraint. Let me
know if you agree, and I'll make the change.
I'm wondering whether a compact representation, such as an arraylist might be
better fit. This is because that there're relatively few ACLs, and checking the
permissions is the dominant operation. Maybe it is a good idea is to spend the
effort in addAcl() / removeAcl() to maintain the optimal orders to check the
permissions efficiently.
> FileSystem API for ACLs.
> ------------------------
>
> Key: HDFS-5594
> URL: https://issues.apache.org/jira/browse/HDFS-5594
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Affects Versions: HDFS ACLs (HDFS-4685)
> Reporter: Chris Nauroth
> Assignee: Chris Nauroth
> Attachments: HDFS-5594.1.patch, HDFS-5594.2.patch, HDFS-5594.3.patch
>
>
> Add new methods to {{FileSystem}} for manipulating ACLs.
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