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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Cassandra data model for financial data
Date Fri, 30 Apr 2010 13:36:28 GMT
each row has an index and bloom filter of column names, and then there
is the overhead of the java objects.

On Thu, Apr 29, 2010 at 11:05 PM, Andrew Nguyen
<andrew-lists-cassandra@ucsfcti.org> wrote:
> When making rough calculations regarding the potential size of a single row,
> what sort of overhead is there to consider?  In other words, for a
> particular column, what else is there to consider in terms of memory
> consumption besides the value itself?
> On Apr 29, 2010, at 8:49 AM, Mark Jones wrote:
>
> At the moment they all have to fit in memory during compaction.  Columns OR
> SuperColumns (for one Key)
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support
http://riptano.com

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