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https://issues.apache.org/jira/browse/HDFS-3498?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Junping Du moved HADOOP-8471 to HDFS-3498:
------------------------------------------
Component/s: (was: ha)
(was: io)
data-node
Affects Version/s: (was: 2.0.0-alpha)
(was: 1.0.0)
1.0.0
2.0.0-alpha
Key: HDFS-3498 (was: HADOOP-8471)
Project: Hadoop HDFS (was: Hadoop Common)
> Make ReplicaPlacementPolicyDefault extensible for reuse code in subclass
> ------------------------------------------------------------------------
>
> Key: HDFS-3498
> URL: https://issues.apache.org/jira/browse/HDFS-3498
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: data-node
> Affects Versions: 2.0.0-alpha, 1.0.0
> Reporter: Junping Du
> Assignee: Junping Du
> Attachments: Hadoop-8471-BlockPlacementDefault-extensible.patch
>
>
> ReplicaPlacementPolicy is already a pluggable component in Hadoop. A user
> specified ReplicaPlacementPolicy can be specified in the hdfs-site.xml
> configuration under the key "dfs.block.replicator.classname". However, to
> make it possible to reuse code in ReplicaPlacementPolicyDefault a few of its
> methods were changed from private to protected. ReplicaPlacementPolicy and
> BlockPlacementPolicyDefault are currently annotated with
> @InterfaceAudience.Private.
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