I have to maintain an elastic cluster composed of 8 data nodes on 4 virtual machines, 2 nodes per virtual machine.
We have one index created every day, composed of 8 shards and 1 replica per shards.
In this configuration, how many elastic nodes can i loose without any data loss ?
What should be the configuration if i want to support the loss of 4 nodes without any data loss ?
Thanks for your help