Enable support for heterogeneous storages in HDFS
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Key: HDFS-2832
URL: https://issues.apache.org/jira/browse/HDFS-2832
Project: Hadoop HDFS
Issue Type: New Feature
Affects Versions: 0.24.0
Reporter: Suresh Srinivas
Assignee: Suresh Srinivas
HDFS currently supports configuration where storages are a list of directories.
Typically each of these directories correspond to a volume with its own file
system. All these directories are homogeneous and therefore identified as a
single storage at the namenode. I propose, change to the current model where
Datanode * is a * storage, to Datanode * is a collection * of stroages.
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