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Is the Cassandra database row size limited by available memory?

I work with very long time series - hundreds of millions of data points in one series - and I see Kassandra as a data warehouse. In this question, one of the Cassandra committers (useful jbellis ) says that Cassandra rows can be very large and column trimming operations are faster than row slicers, so my question is: is the row size still limited by available memory?

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Yes, the row size is still limited by available memory. This is due to the fact that today the compression algorithm de-serializes the entire string in memory before writing the compressed SSTable.

This is currently fixed in version 0.7. See CASSANDRA-16 for progress.

Another interesting link: CassandraLimitations

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