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https://issues.apache.org/jira/browse/HDFS-3094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13229609#comment-13229609
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Todd Lipcon commented on HDFS-3094:
-----------------------------------
Moved this to the HDFS project.
If you don't mind, please also add a "-nonInteractive" flag -- we have the
hooks already in trunk to implement it. The use case is that scripts may want
to run non-interactively, where pre-existence of the dirs is an error.
> add -force option to namenode -format command
> ---------------------------------------------
>
> Key: HDFS-3094
> URL: https://issues.apache.org/jira/browse/HDFS-3094
> Project: Hadoop HDFS
> Issue Type: Improvement
> Affects Versions: 0.24.0, 1.0.2
> Reporter: Arpit Gupta
> Assignee: Arpit Gupta
>
> Currently the bin/hadoop namenode -format prompts the user for a Y/N to setup
> the directories in the local file system.
> We should add a -force option which when present the user is not prompted.
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