Tldr: Only if your events are extremely infrequent. With an inter-event arrival rate of seconds to few minutes, your jvm processes get frozen and thawed out the

Tldr: Only if your events are extremely infrequent. With an inter-event arrival rate of seconds to few minutes, your jvm processes get frozen and thawed out the vast majority of the time to avoid the initialization/load overhead that would otherwise result. See https://aws.amazon.com/blogs/compute/container-reuse-in-lambda/ https://aws.amazon.com/blogs/compute/container-reuse-in-lamb... for a more complete description.