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https://issues.apache.org/jira/browse/HDFS-3247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13251030#comment-13251030
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Aaron T. Myers commented on HDFS-3247:
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How about do #1, prompt the user if they'd like to do #2, and then do it if
they say 'Y' ?
> Improve bootstrapStandby behavior when original NN is not active
> ----------------------------------------------------------------
>
> Key: HDFS-3247
> URL: https://issues.apache.org/jira/browse/HDFS-3247
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: ha
> Affects Versions: 2.0.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Minor
>
> Currently, if you run bootstrapStandby while the first NN is in standby mode,
> it will spit out an ugly StandbyException with a trace. Instead, it should
> print an explanation that you should transition the first NN to active before
> bootstrapping.
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