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From Jonathan Ellis <>
Subject Re: Purge Data
Date Thu, 09 Jun 2011 16:19:42 GMT
Remember that you should have many more rows of size X than you have
cluster nodes for any value of X.

So if you have a data model where a handful of rows may have > 2B
columns but the rest will be much smaller, you should probably rethink

On Thu, Jun 9, 2011 at 10:51 AM, Bahadur, Kamal
<> wrote:
> From the documentation, I came to know that there is a limitation of maximum
> number (2 billion) of columns that a column family can have. My questions
> is, is there a way to purge the old columns when the number of columns is
> nearing the 2 billion mark?
> Thanks,
> Kamal

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

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