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From "Tsz Wo (Nicholas), SZE (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (HDFS-4987) Namenode changes to track multiple storages
Date Mon, 05 Aug 2013 23:19:48 GMT

     [ https://issues.apache.org/jira/browse/HDFS-4987?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Tsz Wo (Nicholas), SZE reassigned HDFS-4987:

    Assignee: Tsz Wo (Nicholas), SZE
> Namenode changes to track multiple storages
> -------------------------------------------
>                 Key: HDFS-4987
>                 URL: https://issues.apache.org/jira/browse/HDFS-4987
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>            Reporter: Suresh Srinivas
>            Assignee: Tsz Wo (Nicholas), SZE
> Currently namenode track in BlockInfo, the corresponding DataNodeDescriptor. I propose
changing this with new abstraction StorageDescriptor. This change will also make DatanodeDescriptor
a collection of StroageDescriptors. This will allow given a block, identify its storage and
also Datanode.

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