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https://issues.apache.org/jira/browse/BOOKKEEPER-300?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13439432#comment-13439432
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Sijie Guo commented on BOOKKEEPER-300:
--------------------------------------

{quote}
BookieShell javadoc is saying "Bookie Shell to read/check bookie files."
Also, one more I've observed is, presently the commands in the shell are like: 
readledger, readlog, readjournal etc. I feel, all these are having readonly 
behaviours. But the format command is a kind of write permission. Are we 
designed the BookieShell to keep only readonly cmds?
{quote}

BookieShell is added for BookkKeeper, which is similar as HedwigConsole added 
for Hedwig. It is designed to put utilities for admin guys to operate/admin the 
cluster. I think it is OK to put utilities for administration in it.

I don't have strong feel on it. But I think putting utilities for 
administration together would help maintenance. 
                
> Create Bookie format command
> ----------------------------
>
>                 Key: BOOKKEEPER-300
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-300
>             Project: Bookkeeper
>          Issue Type: New Feature
>          Components: bookkeeper-server
>    Affects Versions: 4.1.0
>            Reporter: Rakesh R
>         Attachments: BOOKKEEPER-300.patch, BOOKKEEPER-300.patch
>
>
> Provide a bookie format command. Then the admin would just have to run the 
> command on each machine, which will prepare the bookie env
> +Zookeeper paths (znodes):+
> - ledger's root path
> - bookie's available path
> +Directories:+
> - Journal directories
> - Ledger directories

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