[HDFS-947] The namenode should redirect a hftp request to read a file to the datanode that has the maximum number of local replicas

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 0.22.0
• Hadoop Flags: Reviewed
• Assignee: Dmytro Molkov
• Reporter: Dhruba Borthakur
• Created: 03/Feb/10 22:57
• Updated: 12/Dec/11 06:18
• Resolved: 19/Jun/10 06:27

Description

A client that uses the Hftp protocol to read a file is redirected by the namenode to a random datanode. It would be nice if the client gets redirected to a datanode that has the maximum number of local replicas of the blocks of the file.