Prior to Cassandra 0.7, there was a limitation of 2GB on row sizes as the entire row had to fit in memory for compaction. As far as I'm aware, in Cassandra 0.7, the limit has changed to 2^31 (approximately 2 billion) columns.
See http://wiki.apache.org/cassandra/CassandraLimitations for more details. On 26 November 2010 16:45, Marcin <mar...@33concept.com> wrote: > Hi guys, > > I would like to be able to do slices but have been reading that when using > too many columns under one key Cassandra becomes very slow? Is it true and > if so what are the suggestions. > > P.S. > The value of the column is just 1 so its quite flat model, reasons behind > are slicing on name. > > > cheers, > /Marcin >