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From "Pete Wyckoff (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3485) implement writes
Date Thu, 10 Jul 2008 01:07:31 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pete Wyckoff updated HADOOP-3485:
---------------------------------

        Assignee: Pete Wyckoff
    Release Note: 
Write support added, but performance of writes not looked at yet.
I also changed the unit tests to be callable from the top level hadoop build file
          Status: Patch Available  (was: Open)

run the unit tests with:

 ant test-contrib -Dfusedfs=1  -Dlibhdfs=1 -Dtestcase=TestFuseDFS 


> 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
>            Assignee: Pete Wyckoff
>            Priority: Minor
>         Attachments: patch1.txt, patch2.txt
>
>   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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