[HDFS-1881] Federation: after taking snapshot the current directory of datanode is empty

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 0.23.0
• Fix Version/s: 0.23.0
• Component/s: datanode
• Hadoop Flags: Reviewed
• Assignee: Tanping Wang
• Reporter: Tanping Wang
• Created: 03/May/11 21:48
• Updated: 15/Nov/11 00:53
• Resolved: 17/May/11 17:06

Description

After taking a snapshot in Federation (by starting up namenode with option -upgrade), it appears that the current directory of data node does not contain the block files. We have also verified that upgrading from 20 to Federation does not have this problem.