Lambda Execution Environment Lifecycle
Each environment is a Firecracker microVM that passes through Init (runtime start plus code outside the handler), Invoke (one request at a time, frozen between requests), and Shutdown; global variables, open connections, and /tmp survive across invokes in the same environment, which enables caching but forbids relying on state.
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Each environment is a Firecracker microVM that passes through Init (runtime start plus code outside the handler), Invoke (one request at a time, frozen between requests), and Shutdown; global variables, open connections, and /tmp survive across invokes in the same environment, which enables caching but forbids relying on state.
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