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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (HDFS-1563) create(file, true) appears to be violating atomicity
Date Mon, 03 Jan 2011 07:55:48 GMT

     [ https://issues.apache.org/jira/browse/HDFS-1563?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

dhruba borthakur resolved HDFS-1563.
------------------------------------

    Resolution: Won't Fix

I vote that we keep the semantics of the create(overwrite==true) the same as it is now. Please
reopen this JIRA if you strongly feel otherwise.

> create(file, true) appears to be violating atomicity
> ----------------------------------------------------
>
>                 Key: HDFS-1563
>                 URL: https://issues.apache.org/jira/browse/HDFS-1563
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: name-node
>    Affects Versions: 0.20.1
>            Reporter: Guanghao Shen
>            Assignee: dhruba borthakur
>         Attachments: unittest.diff
>
>
> Will upload a unittest to reveal this bug.
> In a word, when a thread is doing create(file, true) on existing file, there are chances
that another thread will get 'false' for exists(file) during the period.

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