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From "Chen Liang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-11450) HDFS specific network topology classes with storage type info included
Date Thu, 23 Feb 2017 22:56:44 GMT
Chen Liang created HDFS-11450:
---------------------------------

             Summary: HDFS specific network topology classes with storage type info included
                 Key: HDFS-11450
                 URL: https://issues.apache.org/jira/browse/HDFS-11450
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Chen Liang
            Assignee: Chen Liang


This JIRA adds storage type info into network topology.

More specifically, this JIRA adds a storage type map by extending {{InnerNodeImpl}} to describe
the available storages under the current node's subtree. This map is updated when a node is
added/removed from the subtree.

With this info, when choosing a random node with storage type requirement, the search could
then decide to/not to go deeper into a subtree by examining the available storage types first.



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