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From "Suresh Srinivas (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-2141) Remove NameNode roles Active and Standby
Date Tue, 12 Jul 2011 06:50:00 GMT
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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