Currently the admin API is designed so the implementation must collect and return the entire response in one contiguous block. This means that very long responses such as /stats and /config_dump may introduce significant delay and memory pressure.

Specificallly:

These two interfaces should be changed so they allow for streaming. Note that we have a dependence on the current non-streaming versions so we might need to have both old and new versions at least temporarily.

This is related to #31082