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From Jeff Zhang <zjf...@gmail.com>
Subject Re: change HDFS block size
Date Wed, 08 Sep 2010 03:03:58 GMT
Those lagacy files won't change block size (NameNode have the mapping
between block and file)
only the new added files will have the block size of 128m



On Tue, Sep 7, 2010 at 7:27 PM, Gang Luo <lgpublic@yahoo.com.cn> wrote:
> Hi all,
> I need to change the block size (from 128m to 64m) and have to shut down the
> cluster first. I was wondering what will happen to the current files on HDFS
> (with 128M block size). Are they still there and usable? If so, what is the
> block size of those lagacy files?
>
> Thanks,
> -Gang
>
>
>
>
>



-- 
Best Regards

Jeff Zhang

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