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From Ted Yu <yuzhih...@gmail.com>
Subject Re: HFile block size
Date Tue, 26 Nov 2013 04:08:31 GMT
Job:
Please take a look at http://hbase.apache.org/book.html#schema.cf.blocksize


On Tue, Nov 26, 2013 at 11:58 AM, Jean-Marc Spaggiari <
jean-marc@spaggiari.org> wrote:

> From the code and the JIRAs:
>
> hbase.hregion.max.filesize is used to configure the size of a region (which
> can contain more than one HFile)
>
> hbase.mapreduce.hfileoutputformat.blocksize come from HBase 8949 (While
> writing hfiles from HFileOutputFormat forcing blocksize from table
> schema(HColumnDescriptor).
>  Even if we configure hbase.mapreduce.hfileoutputformat.blocksize during
> bulkload/import it
> will be overridden with actual block size from table schema. )
>
> hfile.min.blocksize.size is the old
> hbase.mapreduce.hfileoutputformat.blocksize (See HBase-3864)
>
>
> 2013/11/25 Job Thomas <jobt@suntecgroup.com>
>
> > Hi all,
> >
> > Out of these property , which one is used to set  HFile block size in
> hbae
> > 0.94.12
> >
> >          hbase.hregion.max.filesize=16384
> >
> >          hfile.min.blocksize.size=16384
> >
> >          hbase.mapreduce.hfileoutputformat.blocksize=16384
> >
> > Best Regards,
> > Job M Thomas
> >
>

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