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https://issues.apache.org/jira/browse/HDFS-13805?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16574224#comment-16574224
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Surendra Singh Lilhore commented on HDFS-13805:
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Hi [~arpitagarwal], when we want to recover the NN with old backuped fsimage,
we need to reinitialized the share edits to avoid the mismatch between fsimage
and edits logs.
> Journal Nodes should allow to format non-empty directories with "-force"
> option
> -------------------------------------------------------------------------------
>
> Key: HDFS-13805
> URL: https://issues.apache.org/jira/browse/HDFS-13805
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: journal-node
> Affects Versions: 3.0.0-alpha4
> Reporter: Surendra Singh Lilhore
> Assignee: Surendra Singh Lilhore
> Priority: Major
>
> HDFS-11112 completely restricted to re-format journalnode, but it should be
> allowed when *"-force"* option is given. If user fill force option can
> accidentally delete the data then he can disable it by configuring
> "*dfs.reformat.disabled*"
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