An ELB distributes the incoming requests from the internet/intranet to the EC2 instances registered with it. The elastic load balancer can distribute the requests to the instances in a round-robin manner. If you need more complex routing algorithms then either use the Amazon Route53 DNS service, use Nginx as a reverse proxy, or use HAProxy. Amazon ELB is designed to handle an unlimited number of concurrent requests per second with increasing loads. However, it is not designed to handle sudden spikes in the number of requests that typically occur during special promotional sales, online exams, or online trading, when you might experience sudden surges. If your use case falls into this category then you can ...
Creating the Elastic Load Balancer
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