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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HADOOP-14434) Use MoveFileEx to allow renaming a file when the destination exists
Date Wed, 17 May 2017 21:49:04 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-14434?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Douglas reassigned HADOOP-14434:
--------------------------------------

    Assignee: Lukas Majercak

> Use MoveFileEx to allow renaming a file when the destination exists
> -------------------------------------------------------------------
>
>                 Key: HADOOP-14434
>                 URL: https://issues.apache.org/jira/browse/HADOOP-14434
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: native
>    Affects Versions: 2.7.1, 2.7.3, 3.0.0-alpha1, 3.0.0-alpha2
>            Reporter: Lukas Majercak
>            Assignee: Lukas Majercak
>              Labels: windows
>         Attachments: HDFS-11713.001.patch
>
>
> The {{NativeIO.c#renameTo0}} currently uses {{MoveFile}} Windows system call, which fails
when renaming a file to a destination that already exists.
> This makes the {{TestRollingUpgrade.testRollback}} test fail on Windows, as during that
execution, a DataNode tries to rename block's meta file to a destination that exists.
> The proposal is to change to using {{MoveFileEx}} Windows call, and passing in {{MOVEFILE_REPLACE_EXISTING}}
flag to force the renaming.



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