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From Jonathan Ellis <>
Subject Re: help for designing a cassandra
Date Tue, 15 Jun 2010 18:06:12 GMT might help.

On Mon, Jun 14, 2010 at 1:13 PM, Johannes Weissensel
<> wrote:
> Hi everyone,
> i am new to nosql databases and especially column-oriented Databases
> like cassandra.
> I am a student on information-systems and i evaluate a fitting no-sql
> database for a web analytics system. Got the use-case of data like
> webserver-logfile.
> in an RDBMS it would be for every hit a row in the database, and than
> endless grouping and counting on the data for getting the metrics you
> want.
> Is there anyone who has experiences with data like that in hypertable,
> how should i design the database?
> Also for every hit a single row, or maybe for every session an
> aggregated version of the data, or for every day and every page a
> single aggregated version.
> Maybe some has an idea, how to design the database? Just like an
> typical not normalized sql database?
> Hope you have some ideas :)
> Johannes

Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of Riptano, the source for professional Cassandra support

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