MongoDB: Replica Sets and Sharded Cluster
In this tutorial, we will build a shard from scratch, starting from a single instance, then learning how the replica set works in detail. You will learn how to convert a single instance to a replica set and why a single instance is not a good fit for production. After understanding the replica-set concepts we will start a sharded cluster using best practices, learn how the shard works internally, what chunk and shard keys are, how to split data across different regions (geo-partitioning), how to perform an upgrade and also how to scale up and down the cluster. All of those steps will be performed in a secure environment with authentication enabled and monitoring by PMM.