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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5181) Add md5sum facility in dfsshell
Date Fri, 06 Feb 2009 18:49:59 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12671238#action_12671238

Doug Cutting commented on HADOOP-5181:

I think the request is for shell access to:


This seems reasonable to me.  It provides access to the checksum that's already computed &

We could print the checksum as hex.  Perhaps we could even print it as a column with '-lsll'
or somesuch.

> Add md5sum facility in dfsshell
> -------------------------------
>                 Key: HADOOP-5181
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5181
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: dfs
>            Reporter: zhangwei
> I think it would be usefull to add md5sum (or anyone else) to dfsshell ,and the facility
can verify the file on hdfs.It can confirm the file is integrity after copyFromLocal or copyToLocal.

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