Hello,
I need some suggestion from you all. I am new to Cassandra and was reading Cassandra best practices. On one document, it was mentioned that Cassandra should not be using swap, it degrades the performance. My question is instead of disabling swap system wide, can we force Cassandra not to use swap? Some documentation suggests to use memory_locking_policy in cassandra.yaml. How do I check if our Cassandra already has this parameter and still uses swap ? Is there any way i can check this. I already checked cassandra.yaml and dont see this parameter. Is there any other place i can check and confirm? Also, Can I set memlock parameter to unlimited (64kB default), so entire Heap (Xms = Xmx) can be locked at node startup ? Will that help? Or if you have any other suggestions, please let me know. Regards, Kunal
