Services and Indexes

Services are configured and deployed by the Full Administrator who initializes Couchbase Server on one or more nodes. The standard configuration-sequence allows a subset of services to be selected per node, with an individual memory-allocation for each. Each service supports a particular form of data-access. Services not required need not be deployed. Services intended to support a heavy workload can be deployed across multiple cluster-nodes, to ensure optimal performance and resource-availability.

Indexes are used by certain services, such as Query, Analytics, and Search, as targets for search-routines. Each index makes a predefined subset of bucket-data available for the search.

The Query and Analytics services both rely on indexes provided by the Index service. The Search service provides its own indexes, internally.

Indexes, when well-designed, provide significant enhancements to the performance of search-operations.