Sorry forgot that "as of" meant "starting with" :-)

Actually 128 MB started around 2.2.0
2.0.5-alpha was still 64MB

In any case it's just a default, it is often raised on production

Le 22/02/2015 20:51, Ted Yu a écrit :
As of Hadoop 2.6, default blocksize is 128 MB (look for dfs.blocksize)
https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/hdfs-default.xml

Cheers

On Sun, Feb 22, 2015 at 11:11 AM, Krish Donald <[email protected] <mailto:[email protected]>> wrote:

    Hi,

    I have read somewhere that default block size in Hadoop 2.4 is 256MB .
    Is it correct ?
    In which version default block size was 128MB ?

    Thanks
    Krish



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