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Hello,
You need to create an origin group with two origins: a primary and a secondary. If the primary origin is unavailable, or returns specific HTTP response status codes that indicate a failure, CloudFront automatically switches to the secondary origin. The following diagram shows how origin failover works.
Please go through the below link to know more about this.
Thanks, Gautam
已回答 1 年前
Sorry for the misunderstanding, I know how to set up origin group.
In the console only available HTTP codes are: 400, 403, 404, 416, 500, 502, 503 and 504.Maybe this is the wrong place for this question, I mean improve the Cloud front service so that the 429 code is also available in failover criteria in origin group settings.