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https://issues.apache.org/jira/browse/HDFS-12420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16168500#comment-16168500
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Ajay Kumar edited comment on HDFS-12420 at 9/15/17 9:30 PM:
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fixed jenkins issues.


was (Author: ajayydv):
fixing jenkins issues.

> Disable Namenode format for prod clusters when data already exists
> ------------------------------------------------------------------
>
>                 Key: HDFS-12420
>                 URL: https://issues.apache.org/jira/browse/HDFS-12420
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>            Reporter: Ajay Kumar
>            Assignee: Ajay Kumar
>         Attachments: HDFS-12420.01.patch, HDFS-12420.02.patch, 
> HDFS-12420.03.patch, HDFS-12420.04.patch, HDFS-12420.05.patch, 
> HDFS-12420.06.patch, HDFS-12420.07.patch
>
>
> Disable NameNode format to avoid accidental formatting of Namenode in 
> production cluster. If someone really wants to delete the complete fsImage, 
> they can first delete the metadata dir and then run {code} hdfs namenode 
> -format{code} manually.



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