In this hands-on lab, you will:
- Simulate an inconsistent replica node by deleting its data files
- Force a read repair by requesting query results from all replica nodes
Consistency is the tricky challenge for distributed systems. As distributed systems trade-off consistency for performance, some of the nodes in a cluster may become inconsistent. When Cassandra notices these inconsistencies, it takes steps to resolve them. This resolution is the role of read repair.