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Posted to common-user@hadoop.apache.org by Harold Lim <ro...@yahoo.com> on 2009/06/05 01:26:20 UTC

Question about Hadoop filesystem

How do I remove a datanode? Do I simply "destroy" my datanode and the namenode will automatically detect it? Is there a more elegent way to do it?

Also, when I remove a datanode, does hadoop automatically re-replicate the data right away?



Thanks,
Harold

Re: Question about Hadoop filesystem

Posted by Brian Bockelman <bb...@cse.unl.edu>.

It's in the FAQ:

http://wiki.apache.org/hadoop/FAQ#17

Brian

On Jun 4, 2009, at 6:26 PM, Harold Lim wrote:

>
> How do I remove a datanode? Do I simply "destroy" my datanode and  
> the namenode will automatically detect it? Is there a more elegent  
> way to do it?
>
> Also, when I remove a datanode, does hadoop automatically re- 
> replicate the data right away?
>
>
>
> Thanks,
> Harold
>
>
>