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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HDFS-335) improve singleton handling in DataNode
Date Fri, 18 Jul 2014 17:24:12 GMT

     [ https://issues.apache.org/jira/browse/HDFS-335?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Allen Wittenauer resolved HDFS-335.
-----------------------------------

    Resolution: Incomplete

I'm going to close this as stale.

> improve singleton handling in DataNode
> --------------------------------------
>
>                 Key: HDFS-335
>                 URL: https://issues.apache.org/jira/browse/HDFS-335
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Steve Loughran
>            Priority: Minor
>
> when a DataNode is constructed, it saves its identity to a static field:
> datanodeObject=this;
> 1. there's no check on what if this is already set
> 2. when the datanode terminates, it may want to set this to null



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