Hi, Honestly, it’s unclear why you use multipliers like 2.5 and 1.3 in the formula.
Please refer to this capacity guide to make up a rough estimation: https://apacheignite.readme.io/docs/capacity-planning <https://apacheignite.readme.io/docs/capacity-planning> — Denis > On May 10, 2017, at 8:35 AM, Guillermo Ortiz <[email protected]> wrote: > > What's the reason because it needs so many space Ignite to store data in > memory?. > For example, if your dataset it's about 4TB and you are going to use backup > (1 replica) the final size it's about > > 5TBx2.5x1.3(indices) x backcup = 26TB more or less... So, it could be 28TB > with the memory of the system to work. > > It seems insane to have that memory in many cases. How does Ignite store data > to spend 3 times the size on disk? is it possible to reduce this?
