Todo: fallback when out-of-memory or kill

[johnpaulbin]

when someone toys with the api around too much, it can cause the server to go out of memory, killing the flask app. as a temporary fix, going to decrease batch size.

future reference code: https://gist.github.com/kevinxhan/6c0bbc68f2ea6b2f4a620e5413c98fb8

[johnpaulbin]

lowered batch size 64 -> 42