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From "Arpit Agarwal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-12420) Add an option to disallow 'namenode format -force'
Date Tue, 03 Oct 2017 03:50:00 GMT

    [ https://issues.apache.org/jira/browse/HDFS-12420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16189228#comment-16189228
] 

Arpit Agarwal commented on HDFS-12420:
--------------------------------------

UT failures are likely unrelated. I've retriggered Jenkins since there are so many of them.
https://builds.apache.org/view/PreCommit%20Builds/job/PreCommit-HDFS-Build/21495/

> Add an option to disallow 'namenode format -force'
> --------------------------------------------------
>
>                 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, HDFS-12420.08.patch, HDFS-12420.09.patch,
HDFS-12420.10.patch, HDFS-12420.11.patch, HDFS-12420.12.patch
>
>
> Support for disabling 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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