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OpenSearch Project Blog

Your source for OpenSearch updates, community news, and technical insights.

Happy birthday OpenSearch

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...
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Found 346 posts


Introducing semantic highlighting in OpenSearch

July 17, 2025
Explore OpenSearch 3.0's semantic highlighting, an AI-powered feature that intelligently identifies relevant passages based on meaning rather than exact keyword matches. Learn how to enhance your search applications with this powerful capability.
Happy birthday OpenSearch

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...

Making ingestion smarter: System ingest pipelines in OpenSearch

July 16, 2025
Discover OpenSearch 3.1's system ingest pipeline feature, enabling plugin developers to automate document processing during ingestion. Learn how it simplifies configuration, improves user experience, and enhances data transformation capabilities.

Introduction to ML inference processors in OpenSearch: Review summarization and semantic search

July 15, 2025
Learn how to use ML inference processors to implement semantic search and summarization in OpenSearch.

Reducing hybrid query latency in OpenSearch 3.1 with efficient score collection

July 9, 2025
OpenSearch 3.1 delivers up to 3.8x faster hybrid query throughput by optimizing score collection, batching, and segment-level execution—resulting in lower latency and more predictable performance under load.
Technical

Neural sparse models are now available in Hugging Face Sentence Transformers

July 7, 2025
Discover how to implement neural sparse models in Sentence Transformers with OpenSearch. Learn to encode text into sparse vectors with just a few lines of code for efficient search.

Announcing OpenSearch Data Prepper 2.12: Additional source and sinks for your data ingestion needs

July 1, 2025
OpenSearch Data Prepper 2.12 introduces new features to enhance your data ingestion and processing pipeline. Discover the unified OTLP source for streamlined telemetry data ingestion, the Amazon SQS sink for efficient message queuing, and integration with AWS X-Ray for observability.
Community

Vector-Powered, AI-Ready: How OpenSearch and Freshworks Are Shaping the Future of Search

June 25, 2025
The buzz at OpenSearchCon India was electric. And for good reason. In a packed keynote session, leaders from AWS and Freshworks unpacked how search is evolving in the age of...
OpenSearch 3.1 release graphic
Technical

Get started with OpenSearch 3.1

June 24, 2025
OpenSearch 3.1 brings further innovation into the 3.x line with a host of updates to help you boost indexing performance, improve search results, dig deeper into your observability data, build more powerful agentic AI solutions, and maintain security for your OpenSearch deployments.

Redline testing now available in OpenSearch Benchmark

June 23, 2025
OpenSearch Benchmark's new redline testing feature automatically determines cluster throughput limits through dynamic load scaling and real-time monitoring. Eliminate manual tuning and discover your true performance ceiling.
Search

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.
Technical

Enhanced log analysis with OpenSearch PPL: Introducing lookup, join, and subsearch

June 10, 2025
Learn how to use OpenSearch 3.0's new PPL commands to enhance your log analysis. Explore practical examples and understand the Calcite-powered optimization.
Technical

Unlocking agentic AI experiences with OpenSearch

June 9, 2025
Discover how to implement agentic AI in OpenSearch using MCP server and Amazon Q Developer CLI for powerful, conversational search experiences and natural language analytics.
Technical

Real-time query monitoring with live queries in OpenSearch 3.0

June 5, 2025
Discover the new Live Queries API in OpenSearch Query Insights 3.0, enabling real-time visibility into currently executing search queries to identify and debug performance issues as they happen.
Technical

Do more with less: Save up to 3x on storage with derived vector source

June 4, 2025
Learn about derived source for vectors, introduced in OpenSearch 3.0: why it matters, how it works, and how to start using it to improve performance and reduce storage costs.
Technical

Finding a replacement for JSM in OpenSearch 3.0

June 3, 2025
The Java Security Manager (JSM) has long been a foundational security mechanism in OpenSearch. With its deprecation underway, this blog post explores the alternative technologies adopted to replace JSM.
Technical

Optimizing inference processors for cost efficiency and performance

May 29, 2025
Learn how to optimize inference processors in OpenSearch to reduce redundant model calls, lower costs, and improve ingestion performance.
Technical

Improve OpenSearch cluster performance by separating search and indexing workloads

May 27, 2025
Optimize OpenSearch cluster performance by separating indexing and search operations. Discover write/search replicas and dedicated search nodes, with benchmark data showing 34% lower query latency through workload separation.
Technical

Recipes to vectors: Building a hybrid search app with OpenSearch

May 21, 2025
Learn how to build a hybrid search application using OpenSearch as a vector database. Bookmark this step-by-step guide to implementing semantic and keyword search with a recipe dataset.
Technical

Intelligent troubleshooting using OpenSearch 3.0’s plan-execute-reflect agent

May 20, 2025
Explore how the plan-execute-reflect agent in OpenSearch 3.0 transforms troubleshooting by automatically investigating system issues. See this AI agent in action as it analyzes data and provides solutions through a real-world debugging example.