This feature enables sharing of OpenSearch Compute Units (OCUs) among collections that use different AWS KMS encryption keys, maintaining security isolation while reducing overall compute expenses through resource pooling. Users can set both minimum and maximum OCU allocations to ensure steady performance and cost control.
Collection Groups are particularly beneficial for multi-tenant setups where separate encryption is required per tenant, allowing optimized resource utilization and eliminating cold start latencies. This capability is available wherever OpenSearch Serverless is offered, enhancing scalability and operational flexibility for encrypted data workloads.
Source & further reading
Amazon OpenSearch Serverless now supports Collection Groups ↗Source published 2026-02-10. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.