After taking snapshot (upgrade) on Federation, the current directory of data node is emtpy. --------------------------------------------------------------------------------------------
Key: HDFS-1881 URL: https://issues.apache.org/jira/browse/HDFS-1881 Project: Hadoop HDFS Issue Type: Bug Reporter: Tanping Wang Assignee: Tanping Wang 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. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira