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From "Christophe Taton (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-1298) adding user info to file
Date Wed, 25 Jul 2007 22:57:31 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-1298?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12515449
] 

Christophe Taton commented on HADOOP-1298:
------------------------------------------

About EMPTY_BLOCKS_ARRAY and EMPTY_CHILDREN_MAP, it is effectively a programming style. However
the change eases reasoning about INode, children and blocks as there is no need to check null
values anymore (then it is also a very small optimization...). But to my mind, this makes
the code much easier to write, read and understand. I remove it if you don't like it?


> adding user info to file
> ------------------------
>
>                 Key: HADOOP-1298
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1298
>             Project: Hadoop
>          Issue Type: New Feature
>          Components: dfs, fs
>            Reporter: Kurtis Heimerl
>             Fix For: 0.15.0
>
>         Attachments: fsdirectory-cleanup-20070725-1351.patch, hadoop-dev-20070720-1633.patch.gz,
hadoop-dev-20070724-0020.patch.gz, hadoop-dev-20070724-2349.patch.gz, hadoop-user-munncha.patch,
hadoop-user-munncha.patch, hadoop-user-munncha.patch, hadoop-user-munncha.patch10, hadoop-user-munncha.patch11,
hadoop-user-munncha.patch12, hadoop-user-munncha.patch13, hadoop-user-munncha.patch14, hadoop-user-munncha.patch15,
hadoop-user-munncha.patch16, hadoop-user-munncha.patch17, hadoop-user-munncha.patch4, hadoop-user-munncha.patch5,
hadoop-user-munncha.patch6, hadoop-user-munncha.patch7, hadoop-user-munncha.patch8, hadoop-user-munncha.patch9,
hdfs-access-control.patch.gz
>
>
> I'm working on adding a permissions model to hadoop's DFS. The first step is this change,
which associates user info with files. Following this I'll assoicate permissions info, then
block methods based on that user info, then authorization of the user info. 
> So, right now i've implemented adding user info to files. I'm looking for feedback before
I clean this up and make it offical. 
> I wasn't sure what release, i'm working off trunk. 

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