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From "Aaron T. Myers (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-3000) Add a public API for setting quotas
Date Thu, 29 Mar 2012 00:09:38 GMT

    [ https://issues.apache.org/jira/browse/HDFS-3000?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13240849#comment-13240849
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Aaron T. Myers commented on HDFS-3000:
--------------------------------------

bq. The namespace quota is quite specific to HDFS.

Is it? I don't have any specific counterexamples, but I'd be surprised if other file systems
didn't have a similar concept, given that INodes are usually a finite resource.

bq. Setting quota is pure admin method but users could use chown for changing groups although
they cannot change owner.

I suppose that distinction is reasonable. The distinction, then, is "a requirement of superuser
privileges in all cases."

But, that still leaves open the issue of the asymmetry between getting/setting quotas. Does
that not concern you at all, Nicholas?
                
> Add a public API for setting quotas
> -----------------------------------
>
>                 Key: HDFS-3000
>                 URL: https://issues.apache.org/jira/browse/HDFS-3000
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: hdfs client
>    Affects Versions: 0.23.1
>            Reporter: Aaron T. Myers
>            Assignee: Aaron T. Myers
>
> Currently one can set the quota of a file or directory from the command line, but if
a user wants to set it programmatically, they need to use DistributedFileSystem, which is
annotated InterfaceAudience.Private.

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