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Posted to hdfs-dev@hadoop.apache.org by "Jesse Yates (JIRA)" <ji...@apache.org> on 2014/05/21 00:51:39 UTC

[jira] [Created] (HDFS-6440) Support more than 2 NameNodes

Jesse Yates created HDFS-6440:
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             Summary: Support more than 2 NameNodes
                 Key: HDFS-6440
                 URL: https://issues.apache.org/jira/browse/HDFS-6440
             Project: Hadoop HDFS
          Issue Type: New Feature
          Components: auto-failover, ha, namenode
            Reporter: Jesse Yates


Most of the work is already done to support more than 2 NameNodes (one active, one standby). This would be the last bit to support running multiple _standby_ NameNodes; one of the standbys should be available for fail-over.

Mostly, this is a matter of updating how we parse configurations, some complexity around managing the checkpointing, and updating a whole lot of tests.




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