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https://issues.apache.org/jira/browse/HDFS-4152?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tsz Wo (Nicholas), SZE updated HDFS-4152:
-----------------------------------------

    Hadoop Flags: Reviewed

+1 on the patch.
                
> Add a new class for the parameter in INode.collectSubtreeBlocksAndClear(..)
> ---------------------------------------------------------------------------
>
>                 Key: HDFS-4152
>                 URL: https://issues.apache.org/jira/browse/HDFS-4152
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: name-node
>    Affects Versions: 3.0.0
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Jing Zhao
>            Priority: Minor
>         Attachments: HDFS-4152.001.patch
>
>
> INode.collectSubtreeBlocksAndClear(..) currently uses a list to collect 
> blocks for deletion.  It cannot be extended to support other operation like 
> updating the block-map.  We propose to add a new class to encapsulate the 
> abstraction. 

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