Hi folks,

I’m using apache Cassandra 2.2.

Instance is configured with max_heap_size set at 16G, memtable_allocation_type 
is  offheap_objects – total available memory is 62G on the server.
There is nothing but Cassandra is running on my Linux server.

My Cassandra instance is consuming all available memory on my machine!

$ free -h
             total       used       free     shared    buffers     cached
Mem:           62G        62G       776M       184K        35M        42G
-/+ buffers/cache:        19G        43G
Swap:         4.0G         0B       4.0G

Can you guys  please suggest how I can limit memory usage of my Cassandra 
instance and why C* may be using all available memory?
I’ll much appreciate your suggestions.

Thanks/Asad

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