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From "Tsz Wo Nicholas Sze (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6702) DFSClient should create blocks using StorageType
Date Fri, 18 Jul 2014 20:50:07 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6702?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tsz Wo Nicholas Sze updated HDFS-6702:
--------------------------------------

    Status: Patch Available  (was: Open)

> DFSClient should create blocks using StorageType 
> -------------------------------------------------
>
>                 Key: HDFS-6702
>                 URL: https://issues.apache.org/jira/browse/HDFS-6702
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode, hdfs-client
>            Reporter: Tsz Wo Nicholas Sze
>            Assignee: Tsz Wo Nicholas Sze
>         Attachments: h6702_20140719.patch
>
>
> When DFSClient asks NN for a new block (via addBlock), NN returns a LocatedBlock with
storage type information.  However, DFSClient does not use StorageType to create blocks with
DN.  As a result, the block replicas could possibly be created with a different storage type.



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