Mutant Monitoring Systems (MMS) Day 6 – Multi-datacenter Replication

The blog post outlines the process of setting up a multi-datacenter configuration for the Mutant Monitoring System (MMS) using ScyllaDB, emphasizing the importance of disaster readiness and data protection in the event of a physical site failure. By expanding the ScyllaDB cluster to a second datacenter, the post demonstrates how to convert existing keyspaces to be stored in both datacenters, ensuring data is replicated and consistent across sites. The steps include initializing the ScyllaDB cluster, importing data, bringing up a second datacenter, and configuring keyspaces for multi-datacenter replication. The post also discusses the importance of consistency levels in maintaining data availability during site failures, emphasizing the use of LOCAL_ONE and LOCAL_QUORUM levels for ensuring data access when one datacenter is down. The tutorial provides practical guidance on using Docker commands to manage the datacenters and concludes by highlighting the enhanced data protection achieved through this setup.