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https://issues.apache.org/jira/browse/HDFS-9895?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15491812#comment-15491812
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Xiaobing Zhou commented on HDFS-9895:
-------------------------------------

Thank you [~arpiagariu] for review. v002 is posted. It changed dn member of 
DNConf as type of Configurable, since only Configurable#getConf is called.

> Remove unnecessary conf cache from DataNode
> -------------------------------------------
>
>                 Key: HDFS-9895
>                 URL: https://issues.apache.org/jira/browse/HDFS-9895
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: datanode
>            Reporter: Xiaobing Zhou
>            Assignee: Xiaobing Zhou
>         Attachments: HDFS-9895-HDFS-9000.002.patch, HDFS-9895.000.patch, 
> HDFS-9895.001.patch
>
>
> Since DataNode inherits ReconfigurableBase with Configured as base class 
> where configuration is maintained, DataNode#conf should be removed for the 
> purpose of brevity.



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