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Posted to common-issues@hadoop.apache.org by "Robert Chansler (JIRA)" <ji...@apache.org> on 2009/12/21 20:55:18 UTC

[jira] Updated: (HADOOP-1063) MiniDFSCluster exists a race condition that lead to data node resources are not properly released

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

Robert Chansler updated HADOOP-1063:
------------------------------------

    Release Note: Resolved race condition in shutting down MiniDFSCluster data node that prevented resources from being deallocated properly.

> 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 Common
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 0.12.0
>            Reporter: Hairong Kuang
>            Assignee: 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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