Kinesis data stream throttle the request from ECS vector, how can I config vector to handle these throttle exception.

Hello,

I am using ALB + (ECS + vector) to sink the data to kinesis data stream, I found some requests are throttled by kinesis, but vector did not handle these error and still return success to ALB, this make ALB show all requests successfully.

For example, I send 100 request, in cloudwatch metric for kinesis, it shows there are 6 requests throttled. But in ALB metric, it still shows 100 HTTPCode_Target_2XX_Count.

Is there any way to show non 2xx code if the request is not put into kinesis successfully.

Thanks, Mingtong