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From Jonathan Ellis <>
Subject Re: Columns limit
Date Sat, 31 Jul 2010 03:37:01 GMT
On Thu, Jul 29, 2010 at 4:39 PM, Mark <> wrote:
> Is there any limitations on the number of columns a row can have?

2GB of data in a row in 0.6, 2 billion columns in 0.7.

> Does all
> the day for a single key need to reside on a single host?

yes.  if the ratio of rows : machines in your cluster is not
relatively large you are doing it wrong.

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

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