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https://issues.apache.org/jira/browse/HADOOP-3485?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12602045#action_12602045
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Doug Cutting commented on HADOOP-3485:
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This sounds reasonable to me.

> implement writes
> ----------------
>
>                 Key: HADOOP-3485
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3485
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: contrib/fuse-dfs
>            Reporter: Pete Wyckoff
>            Priority: Minor
>   Original Estimate: 48h
>  Remaining Estimate: 48h
>
> Doesn't support writes because fuse protocol first creates the file then 
> closes it and re-opens it to start writing to it. So, (until hadoop-1700), we 
> need a work around.
> One way to do this is to open the file with overwrite flag on the second 
> open. For security, would only want to do this for zero length files (could 
> even check the creation ts too, but because of clock skew, that may be 
> harder).
> Doug, Craig, Nicholas - Comments?
> -- pete
> ps since mostly already implemented, this should be a very quick patch

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