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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] Created: (HDFS-786) Implement getContentSummary(..) in HftpFileSystem
Date Wed, 25 Nov 2009 00:28:39 GMT
Implement getContentSummary(..) in HftpFileSystem
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                 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


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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