Load balancers aren’t efficient in a dynamic environment where we scale services up or down. Consul uses a registry to keep a real-time list of services, their location, and their health. Services query the registry to discover the location of upstream services and then connect directly. This allows services to scale up/down and gracefully handle failure
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Consul is a tool for discovering and configuring services in your infrastructure. It provides several key features like service discovery, health checking, KV store and multi datacenter support.
One of the most difficult tasks for software engineers is scaling out the databases incase of large traffic applications. Today we will discuss one of the horizontal scaling techniques which is the Master-Master replication. Master-Master replication adds speed and redundancy and also distribute the writes load over many servers.
