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Distributed Computing with Go by V.N. Nikhil Anurag

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Multi-availability zones

In the previous section, we talked about the single point of failure and why having multiple instances of the application server is a good thing. We can extend this concept further; what if we have all of our servers in one location and due to some major malfunction or outage, all of our servers go down? We will not be able to serve any user traffic.

We can see that having our servers in one location also creates a single point of failure. The solution for this would be to have application server instances available in multiple locations. Then the next question would be: how do we decide on the locations to deploy our servers? Should we deploy the servers to multiple locations within a single country or should we ...

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