[jira] [Commented] (HDFS-3094) add -nonInteractive option to namenode -format command

["Todd Lipcon (Commented) (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HDFS-3094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13229650#comment-13229650 ] 

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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