Ming Ma created HDFS-9006:
-----------------------------
Summary: Provide BlockPlacementPolicy that supports upgrade domain
Key: HDFS-9006
URL: https://issues.apache.org/jira/browse/HDFS-9006
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Ming Ma
As part of the upgrade domain feature, we need to provide the actual upgrade
domain block placement.
Namenode provides a mechanism to specify custom block placement policy. We can
use that to implement BlockPlacementPolicy with upgrade domain support.
{noformat}
<property>
<name>dfs.block.replicator.classname</name>
<value>org.apache.hadoop.hdfs.server.blockmanagement.BlockPlacementPolicyWithUpgradeDomain</value>
</property>
{noformat}
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