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From "Kartashov, Andy" <Andy.Kartas...@mpac.ca>
Subject RE: block size
Date Tue, 20 Nov 2012 16:36:51 GMT
Cheers!

From: Kai Voigt [mailto:k@123.org]
Sent: Tuesday, November 20, 2012 11:34 AM
To: user@hadoop.apache.org
Subject: Re: block size

Hi,

Am 20.11.2012 um 17:31 schrieb "Kartashov, Andy" <Andy.Kartashov@mpac.ca<mailto:Andy.Kartashov@mpac.ca>>:


After changing property of block size from 64 to 128Mb, will I need to re-import data or will
running hadoop balancer will resize blocks in hdfs?

the blocksize affects new files only, existing files will not be modified. As you said, you
need to re-import those old files if you want to store them with the new blocksize.

Kai

--
Kai Voigt
k@123.org<mailto:k@123.org>




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