Remove NameNode roles Active and Standby
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Key: HDFS-2141
URL: https://issues.apache.org/jira/browse/HDFS-2141
Project: Hadoop HDFS
Issue Type: Sub-task
Components: name-node
Reporter: Suresh Srinivas
Assignee: Suresh Srinivas
In HDFS, following roles are supported in NameNodeRole: ACTIVE, BACKUP,
CHECKPOINT and STANDBY.
Active and Standby are the state of the NameNode. While Backup and CheckPoint
are the name/role of the daemons that are started. This mixes up the run time
state of NameNode with the daemon role. I propose changing the NameNodeRole to:
NAMENODE, BACKUP, CHECKPOINT. HDFS-1974 will introduce the states active and
standby to the daemon that is running in the role NAMENODE.
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