[HDFS-1461] Refactor hdfs.server.datanode.BlockSender

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: datanode
• Assignee: Ramkumar Vadali
• Reporter: Ramkumar Vadali
• Created: 18/Oct/10 21:28
• Updated: 23/Nov/10 21:51

Description

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.