That advice is a little out of date, specially in the future world of 0.8 memory management, see http://thelastpickle.com/2011/05/04/How-are-Memtables-measured/
Cheers ----------------- Aaron Morton Freelance Cassandra Developer @aaronmorton http://www.thelastpickle.com On 6/07/2011, at 5:51 PM, Donna Li <donna...@utstar.com> wrote: > All: > For a rough rule of thumb, Cassandra's internal datastructures will require > about memtable_throughput_in_mb * 3 * number of hot CFs + 1G + internal > caches. > > Why cassandra need so much memory? What is the 1G memory used for? > > > Best Regards > Donna li
