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https://issues.apache.org/jira/browse/HDFS-786?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz Wo (Nicholas), SZE updated HDFS-786:
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    Attachment: h786_20100106.patch

Thanks Chris for the review comments.

h786_20100106.patch: removed both log messages and updated TestListPathServlet.

> Implement getContentSummary(..) in HftpFileSystem
> -------------------------------------------------
>
>                 Key: HDFS-786
>                 URL: https://issues.apache.org/jira/browse/HDFS-786
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>             Fix For: 0.22.0
>
>         Attachments: h786_20091223.patch, h786_20091224.patch, 
> h786_20100104.patch, h786_20100106.patch
>
>
> HftpFileSystem does not override getContentSummary(..).  As a result, it uses 
> FileSystem's default implementation, which computes content summary on the 
> client side by calling listStatus(..) recursively.  In contrast, 
> DistributedFileSystem has overridden getContentSummary(..) and does the 
> computation on the NameNode.
> As a result, running "fs -dus" on hftp is much slower than running it on hdfs.

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