responseCompletionTimeout

The time (in seconds) that a request from CloudFront to the origin can stay open and wait for a response. If the complete response isn't received from the origin by this time, CloudFront ends the connection.

The value for ResponseCompletionTimeout must be equal to or greater than the value for OriginReadTimeout. If you don't set a value for ResponseCompletionTimeout, CloudFront doesn't enforce a maximum value.

For more information, see Response completion timeout in the Amazon CloudFront Developer Guide.