OpenSearchCon Europe 2025

Since the inception of OpenSearch, the indexing capabilities of OpenSearch have evolved to become faster at parsing documents, handling inter node traffic, replicating documents, and creating more efficient data structures. This has mode OpenSearch faster at indexing. The talk will cover how OpenSearch is able to improve indexing one use-case at a time, what is the methodology followed, how are the improvements measured, and how they translated to user success stories.

Also, with too many optimizations, comes the responsibility of understanding those, and enabling those for your use-cases.
In OpenSearch, ABC templates are predefined system templates designed to simplify the process of configuring indexes for various use cases by providing predefined settings and configurations out of the box. These templates encapsulate various optimized settings, mappings, and configurations tailored for different use cases, eliminating the need to manually handle each setting individually. The talk will also add details on how the idea came along, and how it provide a seamless out of box experience for new and seasoned users of OpenSearch.