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https://issues.apache.org/jira/browse/HDFS-3247?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13251029#comment-13251029
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Todd Lipcon commented on HDFS-3247:
-----------------------------------
I think we could do one of the following:
1) Improve the error message to note that the admin should make sure the other
NN is active before proceeding
2) Have it automatically transition it to active if this is the case.
What do you think? I think 1 makes more sense, since the admin has to make an
explicit decision.
> 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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