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https://issues.apache.org/jira/browse/HDFS-1461?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ramkumar Vadali updated HDFS-1461:
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Attachment: HDFS-1461.patch
This patch introduces a RAID-friendly constructor for {{BlockSender}}. This
constructor does not need a {{DataNode}} object, and works with streams
instead. The common code between the new and old constructors is refactored to
a function {{initialize()}}
I ran the HDFS unit tests and I did not see any new failure from trunk.
> Refactor hdfs.server.datanode.BlockSender
> -----------------------------------------
>
> Key: HDFS-1461
> URL: https://issues.apache.org/jira/browse/HDFS-1461
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: data-node
> Reporter: Ramkumar Vadali
> Assignee: Ramkumar Vadali
> Attachments: HDFS-1461.patch
>
>
> BlockSender provides the functionality to send a block to a data node. But
> the current implementation requires the source of the block to be a data
> node. The RAID contrib project needs the functionality of sending a block to
> a data node, but cannot use hdfs.server.datanode.BlockSender because the
> constructor requires a datanode object.
> MAPREDUCE-2132 provides the motivation for this.
> The purpose of this jira is to refactor hdfs.server.datanode.BlockSender to
> have another constructor that does not need a DataNode object.
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