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https://issues.apache.org/jira/browse/HADOOP-2219?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12573640#action_12573640
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dhruba borthakur commented on HADOOP-2219:
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1. It might be a good idea to deprecate getContentLen in ClientProtocol and
Namenode.
2. INode.computeContentSummary can take an ContentSummary object as a parameter
rather than an array of three longs.
3. This patch removes the optimization in
DistributedFileSystem.getContentLength(). In the original code, if the path
object is a DfsPath object, then no additional RPC is required. In the patch, a
RPC is always required.
> du like command to count number of files under a given directory
> ----------------------------------------------------------------
>
> Key: HADOOP-2219
> URL: https://issues.apache.org/jira/browse/HADOOP-2219
> Project: Hadoop Core
> Issue Type: New Feature
> Components: dfs
> Reporter: Koji Noguchi
> Assignee: Tsz Wo (Nicholas), SZE
> Attachments: 2219_20080226.patch
>
>
> To keep the total number of files on dfs low, we like the users to be able to
> easily find out how many files each of their directory contain.
> Currently, we only have fsck or dfs -lsr which takes time.
> Can I ask for an option for du to show the total number of files (as well as
> the total size) of a given directory?
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