Hi I am very new to the use of cassandra. In a cassandra cluster of 3 nodes, I am observing memory usage of cassandra process going more than the heap memor allocated. As I understand, cassandra allocates off heap memory for bloom filters, index summary etc.
When I run nodetool info, I see off heap memory usage around 1.5G, my heap is 8G. So memory usage should not go above 10G. But in running node it goes as high as 18G with heavy loads. It comes down with different loads but always more than 12G. I would like to know why memory usage is high and is there way to control it. Thanks Himanshu Sharma
