Couchbase Server 7.1 introduces a High Availability feature for its Analytics Service, ensuring continuous access to data even when one or more Analytics nodes are unavailable due to maintenance or failure. This feature addresses a significant challenge where data previously became inaccessible during node downtimes, affecting business operations and service level agreements. The High Availability mechanism works by hash-partitioning data across nodes and using replicas to maintain data availability; when a node fails, a replica is promoted to handle its data. Depending on the state of replication, varying amounts of data may need to be re-ingested, but the system continues to function in an unbalanced state until recovery or removal of the failed node. This enhancement offers benefits such as uninterrupted real-time data access, minimal disruption to insights, and improved customer experience, making it a highly valuable addition to Couchbase Analytics.