Not a great idea to make config changes without testing. For a lot of changes you can make the change on one node and measure of three is an improvement however.
You'd probably be best to add nodes (double should be sufficient), do tuning and testing afterwards, and then decommission a few nodes if you can. On Wed., 15 Aug. 2018, 05:00 Abdul Patel, <abd786...@gmail.com> wrote: > Currently our cassandra prod is 18 node 3 dc cluster and application does > 55 million reads per day and want to add load and make it 90 millon reads > per day.they need a guestimate of resources which we need to bump without > testing ..on top of my head we can increase heap and native trasport value > ..any other paramters i should be concern?
