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https://issues.apache.org/jira/browse/HDFS-3094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13229650#comment-13229650
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Todd Lipcon commented on HDFS-3094:
-----------------------------------
The difference is this:
- {{format -force}} should overwrite existing dirs without prompting
- {{format -nonInteractive}} should format if they don't exist, exit with a
status code if they do
- {{format}} should format if they don't exist, and prompt if they do
Does the distinction make sense?
> add -nonInteractive 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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