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HBase >> mail # dev >> Documenting Guidance on compression and codecs


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Re: Documenting Guidance on compression and codecs
Yeah, let's get some info in the book. At least what are the options for
compression.

Enis
On Wed, Sep 18, 2013 at 5:19 PM, Nick Dimiduk <[EMAIL PROTECTED]> wrote:

> For completeness, here's an entry for LZ4:
>
> +--------------------+--------------+
> | compression:LZ4    |    391017061 |
> +--------------------+--------------+
>
>
>
> On Wed, Sep 11, 2013 at 12:10 PM, Nick Dimiduk <[EMAIL PROTECTED]> wrote:
>
> > Do we have a consolidated resource with information and recommendations
> > about use of the above? For instance, I ran a simple test using
> > PerformanceEvaluation, examining just the size of data on disk for 1G of
> > input data. The matrix below has some surprising results:
> >
> > +--------------------+--------------+
> > | MODIFIER           | SIZE (bytes) |
> > +--------------------+--------------+
> > | none               |   1108553612 |
> > +--------------------+--------------+
> > | compression:SNAPPY |    427335534 |
> > +--------------------+--------------+
> > | compression:LZO    |    270422088 |
> > +--------------------+--------------+
> > | compression:GZ     |    152899297 |
> > +--------------------+--------------+
> > | codec:PREFIX       |   1993910969 |
> > +--------------------+--------------+
> > | codec:DIFF         |   1960970083 |
> > +--------------------+--------------+
> > | codec:FAST_DIFF    |   1061374722 |
> > +--------------------+--------------+
> > | codec:PREFIX_TREE  |   1066586604 |
> > +--------------------+--------------+
> >
> > Where does a wayward soul look for guidance on which combination of the
> > above to choose for their application?
> >
> > Thanks,
> > Nick
> >
>