The trap is that each CF will consume 1 MB of memory due to arena allocation. This might seem harmless but if you plan thousands of CF it means thousands of mega bytes... Up to 1,000 CF I think it could be doable, but not 10,000.
Best, Romain tommaso barbugli <tbarbu...@gmail.com> a écrit sur 02/07/2014 10:13:41 : > De : tommaso barbugli <tbarbu...@gmail.com> > A : user@cassandra.apache.org, > Date : 02/07/2014 10:14 > Objet : keyspace with hundreds of columnfamilies > > Hi, > Are there any known issues, shortcomings about organising data in > hundreds of column families? > At this present I am running with 300 column families but I expect > that to get to a couple of thousands. > Is this something discouraged / unsupported (I am using Cassandra 2.0). > > Thanks > Tommaso
