Comment by sriram_iyengar

- watchout for latencies (multi-zones apps) time of your lambda functions.

- keep your lambda functions warmed up

- node has better warmup time than java lambdas (not sure of python)

- memory size impact of lambda functions (negligible in most cases)

- manage lambda timeouts

- dynamodb latencies are negligible

- api gateway typically does not introduce latencies

- multitenancy challenges with single store of dynamodb