How can we determine a good ratio of CPU/memory configuration for elasticsearch nodes for general purpose usage? I see 1:4 ratio in most places, I am not sure though, how that ratio is derived.
Good question unfortunately There is no exact answer.
4:1 for general purpose was a good place to start. We also often see 8:1 It really depends on your use case And what the demands are from a ingest perspective, query perspective, etc.
What I would suggest is look at our hardware profiles for Elastic Cloud.
These are our configurations that thousands of customers are running on.
Example AWS
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