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From "Chen Liang (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-11450) HDFS specific network topology classes with storage type info included
Date Thu, 23 Feb 2017 22:57:44 GMT

     [ https://issues.apache.org/jira/browse/HDFS-11450?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chen Liang updated HDFS-11450:
------------------------------
    Status: Patch Available  (was: Open)

> 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
>          Components: namenode
>            Reporter: Chen Liang
>            Assignee: Chen Liang
>         Attachments: HDFS-11450.001.patch
>
>
> 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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