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https://issues.apache.org/jira/browse/HADOOP-5651?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12698459#action_12698459
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Konstantin Shvachko commented on HADOOP-5651:
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What is "backward compatibility" in this case?
> Update startup scripts to start Checkpoint node instead of SecondaryNameNode
> ----------------------------------------------------------------------------
>
> Key: HADOOP-5651
> URL: https://issues.apache.org/jira/browse/HADOOP-5651
> Project: Hadoop Core
> Issue Type: Improvement
> Components: dfs
> Affects Versions: 0.21.0
> Reporter: Konstantin Shvachko
> Fix For: 0.21.0
>
>
> Start up script {{start-dfs.sh}} should start Checkpoint node instead of
> SecondaryNameNode.
> It should provide an option to start Checkpoint or Backup node or secondary.
> The default should be checkpoint.
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