[jira] Commented: (HADOOP-4764) add replication factor for hdfs directory

["Ruyue Ma (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-4764?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12652869#action_12652869 ] 

Ruyue Ma commented on HADOOP-4764:
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I have completed the patch, I will submit it as soon as possible

> add replication factor for hdfs directory
> -----------------------------------------
>
>                 Key: HADOOP-4764
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4764
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: dfs
>            Reporter: Ruyue Ma
>
> If we can set replication factor for directory. we can modify the DFSClent.create() method, pass 0 for the default block replication. Namenode check create request, if blockreplication is 0, it will give its parent dir replication factor to the file blockreplication factor. This will simplify the administration work. You know we can set /Test or /Tmp dir's replication factor 2 or 1, then all their children files and dirs replication factor is 2 or 1 defaultly.
>    

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