Mailing-List: contact user-help@cassandra.apache.org; run by ezmlm
Precedence: bulk
Reply-To: user@cassandra.apache.org
Received-SPF: pass (athena.apache.org: domain of lewis.mcgibbney@gmail.com
 designates 209.85.216.51 as permitted sender)
MIME-Version: 1.0
Date: Mon, 1 Oct 2012 14:27:37 +0100
Message-ID: 
 <CAGaRif3SYiR1uDrVyhkSxN5F=WT_=GLHvFSQjnXNH4H1vsGJLg@mail.gmail.com>
Subject: Advice on correct storage configuration
From: Lewis John Mcgibbney <lewis.mcgibbney@gmail.com>
To: user@cassandra.apache.org
Content-Type: text/plain; charset=ISO-8859-1

Hi,

I wish to confirm whether the current mapping (storage) configuration
I have is suited to store data commonly extracted field data from Web
Pages.

My mapping can be seen here [0] which basically specifies three column
families e.g. parse (p), fetch (f) and super columns (sc) within the
webpage keyspace.

Each column family subsequently includes several fields which for
clarity include comments. Current CF configuration is as follows:

- fetch CF includes 11 columns
- parse CF including 4
- super column CF including 7

I am trying to ascertain why the 7 super column fields are currently
configured to be super columns as oppose to standard columns!
I therefore wonder if someone can please clarify if such a
configuration is suited to storing data of this nature.

Thank you in advance. if this is too vague an explanation the please
say so and I will be happy to expand on any aspect in an attempt to
fully understand the data model and the configuration.

Thank you

Lewis

[0] http://svn.apache.org/viewvc/nutch/branches/2.x/conf/gora-cassandra-mapping.xml?view=markup


-- 
Lewis