…Does the load balancing wowza server can act as an edge server?
Yes, it can. To test this all you have to do is configure all 4 roles on one machine.
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Make your test machine an Origin and an Edge. Then publish a stream to the Origin, then connect to the Edge with a player and subscribe to the stream. When you see the stream playing from the edge that is being published to the origin, origin/edge is working.
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Configure the Load Balancer Listener on the same machine.
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Configure a Load Balancer Sender on the same machine.
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Configure the redirect application on the same machine.
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Connect to the redirect application with the player, and check the “least loaded server” with the HTTP method.
You will see that all of these roles can be on one machine. It is a cluster of one. You can scale out from there. You can configure another server as an Edge and Load Balancer Sender.
Richard