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From "Konstantin Shvachko (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-2064) Warm HA NameNode going Hot
Date Fri, 10 Jun 2011 18:29:58 GMT
Warm HA NameNode going Hot

                 Key: HDFS-2064
                 URL: https://issues.apache.org/jira/browse/HDFS-2064
             Project: Hadoop HDFS
          Issue Type: New Feature
          Components: name-node
    Affects Versions: 0.22.0
            Reporter: Konstantin Shvachko
            Assignee: Konstantin Shvachko

This is the design for automatic hot HA for HDFS NameNode. It involves use of HA software
and LoadReplicator - external to Hadoop components, which substantially simplify the architecture
by separating HA- from Hadoop-specific problems. Without the external components it provides
warm standby with manual failover.

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