Chen Liang created HDFS-11450:
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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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