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From "Chris Nauroth (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9551) Backport common utils introduced with HADOOP-9413 to branch-1-win
Date Mon, 05 Aug 2013 21:20:48 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9551?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13729967#comment-13729967
] 

Chris Nauroth commented on HADOOP-9551:
---------------------------------------

{quote}
Should we fall back to Chris's original implementation instead of Java's API?
{quote}

I think not.  With my older implementation, we had observed some stability problems on hosts
under load.  It involved forking extra processes for shell commands.  The shell timeout would
kick in, and the command would fail, causing {{DiskChecker}} to erroneously flag a volume
as bad.

In practice, I think Windows will never execute the fallback.  Since hadoop.dll is required
for correctness on Windows in various ways, any realistic deployment will have the native
code available.

                
> Backport common utils introduced with HADOOP-9413 to branch-1-win
> -----------------------------------------------------------------
>
>                 Key: HADOOP-9551
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9551
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 1-win
>            Reporter: Ivan Mitic
>            Assignee: Ivan Mitic
>         Attachments: HADOOP-9551.branch-1-win.common.2.patch, HADOOP-9551.branch-1-win.common.3.patch,
HADOOP-9551.branch-1-win.common.4.patch
>
>
> Branch-1-win has the same set of problems described in HADOOP-9413. With this Jira I
plan to prepare a branch-1-win compatible patch.

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