S3 Put 事件和 lambda 并发
S3 Put event and lambda concurrency
For all other event sources and invocation mechanisms, Lambda executes
your function concurrently for each request or event. You can
estimate your concurrent requests using this formula: requests per
second * function duration. For example, if your function is
subscribed to an Amazon S3 bucket with 10 writes per second, and each
function execution takes 3 seconds on average, your function has 10 *
3 = 30 concurrent executions.
为什么调用了30个并发函数？不应该是 up to/average of 30 个并发执行吗？
You can estimate your concurrent requests using this formula
是的，这是 typical/average 并发的估计值。你的函数只有实际上那么多如果其他条件成立。
For all other event sources and invocation mechanisms, Lambda executes your function concurrently for each request or event. You can estimate your concurrent requests using this formula: requests per second * function duration. For example, if your function is subscribed to an Amazon S3 bucket with 10 writes per second, and each function execution takes 3 seconds on average, your function has 10 * 3 = 30 concurrent executions.
为什么调用了30个并发函数？不应该是 up to/average of 30 个并发执行吗？
You can estimate your concurrent requests using this formula
是的，这是 typical/average 并发的估计值。你的函数只有实际上那么多如果其他条件成立。