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Date: Thu, 15 Mar 2012 05:35:59 +0000 (UTC)
From: "Uma Maheswara Rao G (Commented) (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HADOOP-7771) NPE when running hdfs dfs
 -copyToLocal, -get etc
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    [ https://issues.apache.org/jira/browse/HADOOP-7771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13229911#comment-13229911 ] 

Uma Maheswara Rao G commented on HADOOP-7771:
---------------------------------------------

{quote}Do you feel it would be useful to retain the temp file?{quote}

User will not know about temp file paths right? Then there is not point in retaining temp files. Only concern is, In older version, if write fails also, other clients can read the file till where we have written the file successfully. Later it may get recovered and closed.
But now we are completely invalidating that finalized blocks on write failure.

Also other point is, what if client abuptly shutdown? I think temp files will not be cleaned forever right? 

Regards,
Uma

                
> NPE when running hdfs dfs -copyToLocal, -get etc
> ------------------------------------------------
>
>                 Key: HADOOP-7771
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7771
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 0.23.0, 0.24.0
>            Reporter: John George
>            Assignee: John George
>            Priority: Blocker
>             Fix For: 0.23.0, 0.24.0
>
>         Attachments: HADOOP-7771.patch, HADOOP-7771.patch, HADOOP-7771.patch, HADOOP-7771.patch, HADOOP-7771.patch, HADOOP-7771.patch
>
>
> NPE when running hdfs dfs -copyToLocal if the destination directory does not exist. The behavior in branch-0.20-security is to create the directory and copy/get the contents from source.

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