Currently, there can only be one origin server. When multiple edges connect to multiple origin servers, only one origin server can be selected at a given moment. Therefore, if a stream is sent to two out of N (N>=3) origin servers, such as for hot backup, there will always be one origin server without a stream. If an edge connects to this origin server, it will result in no stream. The edge will have to wait because it cannot know that the origin server does not have this stream.

From the perspective of hot backup and load balancing, it is necessary to support multiple origin servers. These origin servers need to communicate and synchronize their states. This way, when an edge connects to an origin server without a stream, the origin server can inform the edge of the correct origin server.

TRANS_BY_GPT3