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From Franc Carter <franc.car...@sirca.org.au>
Subject Re: sstable image/pic ?
Date Tue, 28 Feb 2012 08:30:47 GMT
On Tue, Feb 28, 2012 at 7:18 PM, aaron morton <aaron@thelastpickle.com>wrote:

> On disk layout is described here, not sure how correct it is now days.
> http://wiki.apache.org/cassandra/ArchitectureSSTable
>
> There are multiple files involved, this will give you an idea of the read
>  and write path
> http://thelastpickle.com/2011/04/28/Forces-of-Write-and-Read/
>

I've read both of those and my ears bleed ;-)

I am trying to answer to questions:-

* Does the column name get stored for every col/val for every key (which
sort of worries me for long column names)

* Is data in an sstable sorted by key then column or column then key

cheers



>
> Hope that helps.
>
>
>   -----------------
> Aaron Morton
> Freelance Developer
> @aaronmorton
> http://www.thelastpickle.com
>
> On 28/02/2012, at 8:07 PM, Franc Carter wrote:
>
>
> Hi,
>
> does anyone know of a picture/image that shows the layout of
> keys/columns/values in an sstable - I haven't been able to find one and am
> having a hard time visualising the layout from various descriptions and
> various overviews
>
> thanks
>
> --
> *Franc Carter* | Systems architect | Sirca Ltd
>  <marc.zianideferranti@sirca.org.au>
> franc.carter@sirca.org.au | www.sirca.org.au
> Tel: +61 2 9236 9118
>  Level 9, 80 Clarence St, Sydney NSW 2000
> PO Box H58, Australia Square, Sydney NSW 1215
>
>
>


-- 

*Franc Carter* | Systems architect | Sirca Ltd
 <marc.zianideferranti@sirca.org.au>

franc.carter@sirca.org.au | www.sirca.org.au

Tel: +61 2 9236 9118

Level 9, 80 Clarence St, Sydney NSW 2000

PO Box H58, Australia Square, Sydney NSW 1215

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