Namenode supports Active and Standby modes; Standby Namenode should be able to able to take up the Active role dynamically, without losing any data. ----------------------------------------------------------------------------------------------------------------------------------------------------
Key: HDFS-2164 URL: https://issues.apache.org/jira/browse/HDFS-2164 Project: Hadoop HDFS Issue Type: Sub-task Reporter: Justin Joseph Namenode should have the capability to play dual roles, either as Active or Standby, as HA Agent decides. The Standby Namenode should contain the instance of Backup Namenode inside. When HA Agent forces a switch over, the Backup Namenode instance should be turned to a normal Namenode instance. -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira