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Posted to hdfs-dev@hadoop.apache.org by "Suresh Srinivas (JIRA)" <ji...@apache.org> on 2013/07/13 00:01:48 UTC

[jira] [Created] (HDFS-4987) Namenode changes to track multiple storages

Suresh Srinivas created HDFS-4987:
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             Summary: 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


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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