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From "Koji Noguchi (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7973) DistributedFileSystem close has severe consequences
Date Fri, 20 Jan 2012 21:02:41 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13190107#comment-13190107
] 

Koji Noguchi commented on HADOOP-7973:
--------------------------------------

bq. The beauty is if I've missed something, the tests will immediately fail.

I'm not following.  Does your test fail without your change and succeeds with your change?

If it already does that, I need to take another look.  If it doesn't, please post a new test.

                
> DistributedFileSystem close has severe consequences
> ---------------------------------------------------
>
>                 Key: HADOOP-7973
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7973
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs
>    Affects Versions: 1.0.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>            Priority: Blocker
>         Attachments: HADOOP-7973-2.patch, HADOOP-7973-3.patch, HADOOP-7973-4.patch, HADOOP-7973.patch
>
>
> The way {{FileSystem#close}} works is very problematic.  Since the {{FileSystems}} are
cached, any {{close}} by any caller will cause problems for every other reference to it. 
Will add more detail in the comments.

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