AWS Big Data Blog
Configure Amazon OpenSearch Service for high availability
September 2025: This post was reviewed for accuracy. Amazon OpenSearch Service is a fully open-source search and analytics engine that securely unlocks real-time search, monitoring, and analysis of business and operational data for use cases like recommendation engines, ecommerce sites, and catalog search. To be successful in your business, you need your systems to be […]
Amazon OpenSearch Service Under the Hood: Multi-AZ with Standby
Amazon OpenSearch Service recently announced Multi-AZ with Standby, a new deployment option for managed clusters that enables 99.99% availability and consistent performance for business-critical workloads. With Multi-AZ with Standby, clusters are resilient to infrastructure failures like hardware or networking failure. This option provides improved reliability and the added benefit of simplifying cluster configuration and management […]
Improved performance with AWS Graviton2 instances on Amazon OpenSearch Service
Amazon OpenSearch Service is a fully managed service at AWS for OpenSearch. It’s an open-source search and analytics suite used for a broad set of use cases, like real-time application monitoring, log analytics, and website search. While running an OpenSearch Service domain, you can choose from a variety of instances for your primary nodes and […]


