Home | About | Sematext search-lucene.com search-hadoop.com
 Search Hadoop and all its subprojects:

Switch to Threaded View
Hadoop >> mail # user >> change HDFS block size

Copy link to this message
Re: change HDFS block size
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 <[EMAIL PROTECTED]> 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