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https://issues.apache.org/jira/browse/HADOOP-7771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13229590#comment-13229590
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Daryn Sharp commented on HADOOP-7771:
-------------------------------------
The former behavior for some of the copy commands was to begin overwriting the
target file. This jira commonized the copy code in FsShell since it was
inconsistent and buggy. The existing code that I standardized on copies into a
temp file, and then renames the temp file if the copy is successful. If the
copy fails, the temp file is deleted.
Do you feel it would be useful to retain the temp file?
> 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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