How does the microservice API gateway pattern work with auto Horizontal scaling?

If I would like to have a high available solution. So, I would have two API gateways in different data center.

Each API gateway is connected to three microservices like billing, users, and account services. Each one has three replica.

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  • So is that true to have 6 copies for one microservice, and if not. How does it work?

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  • 2 Solutions collect form web for “How does the microservice API gateway pattern work with auto Horizontal scaling?”

    In this scenario you’d want to deploy a single Kong cluster across multiple data centers – have a look at

    Kong supports two datastores (Postgres and Cassandra) you’d probably want to pick Cassandra, but you could make Postgres work – have a look at

    The API gateway model is a scalable solution for microservice based architectures.

    You have the gateway distributed over 2 data-centres which helps provide High Availability to the gateway – you could even consider spreading it over 3 for full multi-region in the future.

    If your microservices each have a replica of 3 and they are distributed into the 2 data-centres then yes you have 6 instances of that microservice running however unless you have the two data-centres sharing resources then it is 3 of each microservice in each data-centre.

    Docker will be the best open platform for developers and sysadmins to build, ship, and run distributed applications.