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https://issues.apache.org/jira/browse/HDFS-15221?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17059518#comment-17059518
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Yang Yun commented on HDFS-15221:
---------------------------------

Thanks [~elgoiri] for the review.

For the first item, I want to put the key into DFSConfigKeys, but DFSConfigKeys 
is InterfaceAudience.Private and StorageType in common project can not see it.  
Could you give me a suggestion where to put? 

> Add checking of effective filesystem during initializing storage locations
> --------------------------------------------------------------------------
>
>                 Key: HDFS-15221
>                 URL: https://issues.apache.org/jira/browse/HDFS-15221
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: datanode
>            Reporter: Yang Yun
>            Assignee: Yang Yun
>            Priority: Minor
>         Attachments: HDFS-15221-002.patch, HDFS-15221-003.patch, 
> HDFS-15221.patch
>
>
> We sometimes mount different disks for different storage types as the storage 
> location. It's important to check the volume is mounted rightly before 
> initializing storage locations.



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