Happy fourth birthday, OpenSearch!
July 17, 2025
The OpenSearch Project is four years old and has always struck me as unique in a few ways. I joined in early 2022 with a charter to build a high...
Showing 5 of 346 posts
Introducing common filter support for hybrid search queries
June 16, 2025
Learn how to simplify hybrid search filtering with common filter support in OpenSearch 3.0.
Optimizing query performance: The implementation of the OpenSearch index request cache
October 8, 2024
Speed and efficiency are essential for search users. OpenSearch achieves these through various mechanisms, one of the most important of which being the index request cache. This blog post describes how...
Using search latency monitoring at the coordinator-node-level
October 1, 2024
Responsiveness is core to any search solution, and communication delays between search requests and responses can present problems for your users. This is why many administrators monitor search latency: the...
Boosting vector search performance with concurrent segment search
August 27, 2024
In OpenSearch, data is stored in shards, which are further divided into segments. When you execute a search query, it runs sequentially across all segments of each shard involved in...
Exploring concurrent segment search performance
July 30, 2024
In October 2023, we introduced concurrent segment search in OpenSearch as an experimental feature. Searching segments concurrently improves search latency across a large variety of workloads. This feature was made generally available...
