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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-4209) Clean up the addNode/addChild/addChildNoQuotaCheck methods in FSDirectory
Date Wed, 21 Nov 2012 21:58:59 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4209?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Tsz Wo (Nicholas), SZE updated HDFS-4209:

    Attachment: h4209_20121121.patch

- It adds PathException for path related exception such as not-a-file, directory-not-found,
- fsDir.getParent(pathComponents) is only used by image loading but it holds the read lock.
> Clean up the addNode/addChild/addChildNoQuotaCheck methods in FSDirectory
> -------------------------------------------------------------------------
>                 Key: HDFS-4209
>                 URL: https://issues.apache.org/jira/browse/HDFS-4209
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>         Attachments: h4209_20121118b.patch, h4209_20121118.patch, h4209_20121119.patch,
> - Returning the same INode back is not useful.  It is better to simply return a boolean
to indicate whether the inode is added.
> - The value of childDiskspace parameter is always UNKNOWN_DISK_SPACE.
> - In most cases, the value of the pos parameter is length - 1.

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