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From "Hairong Kuang (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-1063) MiniDFSCluster exists a race condition that lead to data node resources are not properly released
Date Thu, 08 Mar 2007 17:28:25 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-1063?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Hairong Kuang updated HADOOP-1063:
----------------------------------

    Attachment: miniDFSCluster.patch

This patch removes the race condition in MiniDFSCluster. It guarantees that resources are
released after a mini dfs cluster shuts down.

> MiniDFSCluster exists a race condition that lead to data node resources are not properly
released
> -------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-1063
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1063
>             Project: Hadoop
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 0.12.0
>            Reporter: Hairong Kuang
>         Assigned To: Hairong Kuang
>             Fix For: 0.13.0
>
>         Attachments: miniDFSCluster.patch
>
>
> In MiniDFSCluster, there is a possibility that a data node gets shutted down before it
is constructed. This leads to the situation that the data node's resources are not properly
released. In Cygwin I observe that the data node directory is still kept locked after a miniDFSCluster
is shut down.

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