Привет.
Это по дизайну:
"Five requests per second per AWS account. If you submit more than five requests per second, Amazon Route 53 returns an HTTP 400 error (
Bad request
). The response header also includes a
Code
element with a value of
Throttling
and a
Message
element with a value of
Rate exceeded
.
NoteIf your application exceeds this limit, we recommend that you implement exponential backoff for retries. For more information, see
Error Retries and Exponential Backoff in AWS in the
Amazon Web Services General Reference."
Попробуйте обратиться в поддержку и если это возможно, то они увеличат его.