>From the Cassandra documentation @ riptano I see the following recommendation for Heap size setting
MemtableThroughputInMB * 3 * (number of ColumnFamilies) + 1G + (size of internal caches) What if there is more than one keyspace in the system ? Assuming each keyspace has the same number of column families, Can I linearly scale the above recommendation to the number of keyspaces in the system .ie, if the "X" is the heap size for a single keyspace and there are "Y" keyspaces, Is it recommended to allocate "XY" as the max Heap size ? Please let me know. Thanks Kannan PS: Thanks a lot for the documentation and recommendations.