> heap size is 10G and the load of data per node was around 300G, 16-core CPU,
Are the 300 GB made up of *really* small values? Per SS table bloom filters do consume memory, but you'd have to have a *lot* of *really* small values for a 300 GB database to cause bloom filters to be a significant part of a 10 GB h eap. -- / Peter Schuller
