incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jake Luciani <jak...@gmail.com>
Subject Re: Suggested settings for number crunching
Date Thu, 18 Aug 2011 13:23:49 GMT
Are you writing lots of tiny rows or a few very large rows, are you batching
mutations? is the loading disk or cpu or network bound?

-Jake

On Thu, Aug 18, 2011 at 7:08 AM, Paul Loy <keteracel@gmail.com> wrote:

> Hi All,
>
> I have a program that crunches through around 3 billion calculations. We
> store the result of each of these in cassandra to later query once in order
> to create some vectors. Our processing is limited by Cassandra now, rather
> than the calculations themselves.
>
> I was wondering what settings I can change to increase the write
> throughput. Perhaps disabling all caching, etc, as I won't be able to keep
> it all in memory anyway and only want to query the results once.
>
> Any thoughts would be appreciated,
>
> Paul.
>
> --
> ---------------------------------------------
> Paul Loy
> paul@keteracel.com
> http://uk.linkedin.com/in/paulloy
>



-- 
http://twitter.com/tjake

Mime
View raw message