Lambda Concurrency Limits
Concurrency equals in-flight invocations; each executes in its own environment. The account-level pool (default soft limit 1,000 per region) is shared by all functions, each function can scale by 1,000 new environments every 10 seconds, and exhaustion causes throttling: 429s to sync callers, internal retry for async. Reserved concurrency both guarantees a function capacity and caps it.
This Concept is waiting for its first lesson!
Concurrency equals in-flight invocations; each executes in its own environment. The account-level pool (default soft limit 1,000 per region) is shared by all functions, each function can scale by 1,000 new environments every 10 seconds, and exhaustion causes throttling: 429s to sync callers, internal retry for async. Reserved concurrency both guarantees a function capacity and caps it.
Are you a teacher? Sign in to start contributing.
Sign In