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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HDFS-1049) utility to list all files less than X replication
Date Sat, 20 Mar 2010 01:04:27 GMT

    [ https://issues.apache.org/jira/browse/HDFS-1049?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12847676#action_12847676
] 

Allen Wittenauer commented on HDFS-1049:
----------------------------------------

This goes back to the whole "traversing the file system" issue that impacts lots of other
tools and common ops procedures. It takes *forever* on a large fs plus adds to the NN load
when we could just have the NN spit out the answer to the question directly.  [This would
be great functionality for the mythical hadoop dfs -find command.]

> utility to list all files less than X replication
> -------------------------------------------------
>
>                 Key: HDFS-1049
>                 URL: https://issues.apache.org/jira/browse/HDFS-1049
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: tools
>    Affects Versions: 0.20.2
>            Reporter: Allen Wittenauer
>
> It would be great to have a utility that lists all files that have a replication less
than X.  While fsck provides this output and it isn't that tricky to parse, it would still
be nice if Hadoop had this functionality out of the box.

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