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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-6387) FsShell -getmerge source file pattern is broken
Date Mon, 25 Oct 2010 06:55:24 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-6387?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12924468#action_12924468
] 

Chris Nauroth commented on HADOOP-6387:
---------------------------------------

I'd like to volunteer for this issue, after my patch for HADOOP-7006, which involves the same
part of the codebase.


> FsShell -getmerge source file pattern is broken
> -----------------------------------------------
>
>                 Key: HADOOP-6387
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6387
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>            Reporter: Eli Collins
>            Priority: Minor
>             Fix For: 0.22.0
>
>
> The FsShell -getmerge command doesn't work if the "source file pattern" matches files.
See below. If the current behavior is intended then we should update the help documentation
and java docs to match, but it would be nice if the user could specify a set of files in a
directory rather than just directories.
> {code}
> $ hadoop fs -help getmerge
> -getmerge <src> <localdst>:  Get all the files in the directories that 
> 		match the source file pattern and merge and sort them to only
> 		one file on local fs. <src> is kept.
> $ hadoop fs -ls
> Found 3 items
> -rw-r--r--   1 eli supergroup          2 2009-11-23 17:39 /user/eli/1.txt
> -rw-r--r--   1 eli supergroup          2 2009-11-23 17:39 /user/eli/2.txt
> -rw-r--r--   1 eli supergroup          2 2009-11-23 17:39 /user/eli/3.txt
> $ hadoop fs -getmerge /user/eli/*.txt sorted.txt
> $ cat sorted.txt
> cat: sorted.txt: No such file or directory
> $ hadoop fs -getmerge /user/eli/* sorted.txt
> $ cat sorted.txt
> cat: sorted.txt: No such file or directory
> $ hadoop fs -getmerge /user/* sorted.txt
> $ cat sorted.txt 
> 1
> 2
> 3
> {code}

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