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Posted to common-dev@hadoop.apache.org by "dhruba borthakur (JIRA)" <ji...@apache.org> on 2007/01/30 02:23:49 UTC

[jira] Updated: (HADOOP-959) TestCheckpoint fails on Windows

     [ https://issues.apache.org/jira/browse/HADOOP-959?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

dhruba borthakur updated HADOOP-959:
------------------------------------

    Attachment: renameToWindows.patch

Here is a patch for review.

> TestCheckpoint fails on Windows
> -------------------------------
>
>                 Key: HADOOP-959
>                 URL: https://issues.apache.org/jira/browse/HADOOP-959
>             Project: Hadoop
>          Issue Type: Bug
>          Components: dfs
>            Reporter: dhruba borthakur
>         Assigned To: dhruba borthakur
>         Attachments: renameToWindows.patch
>
>
> The new unit test that tests periodic checkpointing fails on Windows. The problem is that the method FSEditLog.purgeEditLog() uses renameTo() to atomically move edits.new to edits
> File.renameTo() fails on Windows is not atomic: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=4017593
> I propose that we change this code to first try the renameTo(). If it fails, then it deletes edits and then renames edits.new to edits. 
>  

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