# opensearch.org

> AI-optimized mirror of opensearch.org containing 50 pages totalling 47,505 words of clean markdown content, structured data, and semantic HTML. Original source: https://opensearch.org. Last updated: 2026-07-20T14:54:40.958Z.

Each page is available as HTML (with JSON-LD structured data) and Markdown (text-only, ideal for LLMs and RAG).

## Homepage

- [Home - OpenSearch](/content/site-root.html): OpenSearch is a community-driven, Apache 2.0-licensed open source search and analytics suite that makes it easy to ingest, search, visualize, and analyze data. (220 words)

## Articles & Blog Posts

- [blog/segment-replication/index.html](/content/blog/segment-replication/index.html) (2,277 words)
- [Managed Service Provider (MSP) Archives - OpenSearch](/content/lf-provider-type/managed-service-provider-msp/index.html) (296 words)
- [OpenSearch Agent Skills Hackathon - OpenSearch](/content/events/agent-skills-hackathon-us-2026/index.html): Contribute to 2026 OpenSearch Agent Skills Hackathon: US-based developers can submit agentic IDE skills for search, observability, and migration. (849 words)
- [Professional Services Archives - OpenSearch](/content/lf-provider-type/professional-services/index.html) (281 words)
- [Systems Integrator Archives - OpenSearch](/content/lf-provider-type/systems-integrator/index.html) (280 words)
- [Independent Software Vendor (ISV) Archives - OpenSearch](/content/lf-provider-type/independent-software-vendor-isv/index.html) (311 words)
- [Consultancy Archives - OpenSearch](/content/lf-provider-type/consultancy/index.html) (420 words)
- [Support Archives - OpenSearch](/content/lf-provider-type/support/index.html) (189 words)
- [Product/technology and services organization Archives - OpenSearch](/content/lf-provider-type/product-technology-and-services-organization/index.html) (61 words)
- [LTS Approved Vendors Archives - OpenSearch](/content/lf-provider-type/lts-approved-vendors/index.html) (67 words)
- [Data Prepper 2.16: Improved end-to-end metrics - OpenSearch](/content/blog/data-prepper-2-16-improved-end-to-end-metrics/index.html): OpenSearch Data Prepper 2.16 improves end-to-end metrics ingestion with a pull-based Prometheus source and OpenSearch-TSDB, introduces experimental OpenSearch pull-based ingestion through Kafka, adds powerful capabilities to the OpenSearch sink, and more. (2,015 words, Jul 6, 2026)
- [How a single space broke OpenSearch backups—and how Aiven fixed it - OpenSearch](/content/blog/how-a-single-space-broke-opensearch-backups-and-how-aiven-fixed-it.html): A single space in a KNN field name broke OpenSearch snapshots. Learn how Aiven traced the bug, reported it, and helped the community ship a fix in OpenSearch v2.17. (752 words, May 29, 2026)
- [Data Prepper 2.15 brings Apache Iceberg ingestion and Prometheus metrics support - OpenSearch](/content/blog/data-prepper-2-15-brings-apache-iceberg-ingestion-and-prometheus-metrics-support.html): OpenSearch Data Prepper 2.15 adds Apache Iceberg ingestion, bidirectional Prometheus metrics support, and composable functions for advanced pipeline processing. (806 words, Apr 6, 2026)
- [Data Prepper 2.14: OpenTelemetry-powered APM service maps and production-ready Prometheus support - OpenSearch](/content/blog/opentelemetry-powered-apm-service-maps-and-production-ready-prometheus-support.html): Data Prepper 2.14 adds OpenTelemetry-powered APM service maps, production-ready Prometheus support, Lambda streaming, and cross-region S3 for modern observability., Data Prepper 2.14 adds OpenTelemetry-powered APM service maps, production-ready Prometheus support, Lambda streaming, and cross-region S3 for modern observability. (790 words, Feb 25, 2026)
- [Data Prepper 2.13 brings native OpenSearch data streams and Prometheus integration - OpenSearch](/content/blog/data-prepper-2-13-brings-native-opensearch-data-streams-and-prometheus-integration.html): Data Prepper 2.13 adds Prometheus sink support, native OpenSearch data streams, cross-region S3 ingestion, and 20% performance improvements. Download it now., Data Prepper 2.13 adds Prometheus sink support, native OpenSearch data streams, cross-region S3 ingestion, and 20% performance improvements. Download it now. (958 words, Dec 3, 2025)
- [Announcing OpenSearch Observability TAG: Shaping Open Source Observability Together - OpenSearch](/content/blog/announcing-opensearch-observability-tag-shaping-open-source-observability-together.html): Announcing the OpenSearch Observability Technical Advisory Group (TAG), a new community-driven initiative to advance open source observability. Learn how industry leaders from AWS, SAP, Apple, Uber, Paessler, and Hilti are collaborating to shape best practices, align with open standards, and drive innovation in observability using OpenSearch. (648 words, Sep 16, 2025)
- [Neural sparse models are now available in Hugging Face Sentence Transformers - OpenSearch](/content/blog/neural-sparse-models-are-now-available-in-hugging-face-sentence-transformers.html): 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, 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 (1,103 words, Jul 7, 2025)
- [Announcing OpenSearch Data Prepper 2.12: Additional source and sinks for your data ingestion needs - OpenSearch](/content/blog/announcing-opensearch-data-prepper-2-12-additional-source-and-sinks-for-your-data-ingestion-needs.html): : 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 (904 words, Jul 1, 2025)
- [Enhanced log analysis with OpenSearch PPL: Introducing lookup, join, and subsearch - OpenSearch](/content/blog/enhanced-log-analysis-with-opensearch-ppl-introducing-lookup-join-and-subsearch.html): 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. (1,548 words, Jun 10, 2025)
- [Real-time query monitoring with live queries in OpenSearch 3.0 - OpenSearch](/content/blog/real-time-query-monitoring-with-live-queries-in-opensearch-3-0.html): 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. (924 words, Jun 5, 2025)
- [Do more with less: Save up to 3x on storage with derived vector source - OpenSearch](/content/blog/do-more-with-less-save-up-to-3x-on-storage-with-derived-vector-source.html): 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. (1,245 words, Jun 4, 2025)
- [Optimizing inference processors for cost efficiency and performance - OpenSearch](/content/blog/optimizing-inference-processors-for-cost-efficiency-and-performance.html): Learn how to optimize inference processors in OpenSearch to reduce redundant model calls, lower costs, and improve ingestion performance. (916 words, May 29, 2025)
- [Improve OpenSearch cluster performance by separating search and indexing workloads - OpenSearch](/content/blog/improve-opensearch-cluster-performance-by-separating-search-and-indexing-workloads.html): 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. (1,267 words, May 27, 2025)
- [Recipes to vectors: Building a hybrid search app with OpenSearch - OpenSearch](/content/blog/recipes-to-vectors-building-a-hybrid-search-app-with-opensearch.html): 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. (1,764 words, May 21, 2025)
- [The power of star-tree indexes: Supercharging OpenSearch aggregations - OpenSearch](/content/blog/the-power-of-star-tree-indexes-supercharging-opensearch-aggregations.html): Learn how star-tree index improves the performance of aggregations in OpenSearch. (1,282 words, Apr 30, 2025)
- [Introducing the z-score normalization technique for hybrid search - OpenSearch](/content/blog/introducing-the-z-score-normalization-technique-for-hybrid-search.html): Explore z-score normalization in OpenSearch 3.0-beta1 for hybrid search. Learn how this technique compares to min-max normalization through benchmarks on search relevance and performance. (1,478 words, Apr 28, 2025)
- [Navigating pagination in hybrid queries with the pagination_depth parameter - OpenSearch](/content/blog/navigating-pagination-in-hybrid-queries-with-the-pagination_depth-parameter.html): In this blog post, we'll explore why pagination depth is necessary for hybrid queries, show you how to use this feature, and share benchmarking results. (1,790 words, Apr 23, 2025)
- [What's new in OpenSearch Query Insights: Advanced grouping, dashboards, and historical analysis - OpenSearch](/content/blog/whats-new-in-opensearch-query-insights-advanced-grouping-dashboards-and-historical-analysis.html): Learn how the latest enhancements to OpenSearch Query Insights, including advanced query grouping, dedicated dashboards, historical analysis capabilities, and improved plugin health monitoring, improve performance. (1,372 words, Apr 22, 2025)
- [Building effective hybrid search in OpenSearch: Techniques and best practices - OpenSearch](/content/blog/building-effective-hybrid-search-in-opensearch-techniques-and-best-practices.html): Learn about lexical, semantic, and hybrid search in OpenSearch. Discover how hybrid search merges results from multiple query sources for improved relevance. (1,966 words, Apr 17, 2025)
- [A practical guide to selecting HNSW hyperparameters - OpenSearch](/content/blog/a-practical-guide-to-selecting-hnsw-hyperparameters.html): Struggling to balance search quality and speed in your LLM applications? This post dives into optimizing HNSW for vector search, offering pre-computed configurations to help you achieve better recall and throughput with ease. (3,165 words, Apr 10, 2025)
- [Boost OpenSearch vector search performance with Intel AVX-512 - OpenSearch](/content/blog/boost-opensearch-vector-search-performance-with-intel-avx512.html): Billions of vectors? No problem. Learn how Intel AVX-512 accelerates OpenSearch vector search, providing crucial performance gains for massive generative AI and LLM datasets, with benchmarks showing significant speedups. (1,506 words, Apr 8, 2025)
- [OpenSearch as a SIEM Solution - OpenSearch](/content/blog/opensearch-as-a-siem-solution/index.html): Transform your security operations with OpenSearch. Learn how this scalable open-source platform can serve as the core of your SIEM system, offering real-time threat detection, powerful log analysis, and robust compliance monitoring. (1,377 words, Mar 20, 2025)
- [Introducing reciprocal rank fusion for hybrid search - OpenSearch](/content/blog/introducing-reciprocal-rank-fusion-hybrid-search/index.html): Learn how OpenSearch 2.19's new Reciprocal Rank Fusion (RRF) enhances hybrid search by intelligently merging results from diverse query sources, improving relevance, stability, and performance for high-throughput applications., Learn how OpenSearch 2.19's new Reciprocal Rank Fusion (RRF) enhances hybrid search by intelligently merging results from diverse query sources, improving relevance, stability, and performance for high-throughput applications. (1,638 words, Feb 12, 2025)
- [Enhancing OpenSearch anomaly detection: Reducing false positives through algorithmic improvements - OpenSearch](/content/blog/reducing-false-positives-through-algorithmic-improvements.html): Learn how recent algorithmic enhancements to the OpenSearch Anomaly Detection plugin, including Random Cut Forest improvements, have dramatically reduced false positives by 94.3% and false negatives by 50%, ensuring more accurate insights. (2,021 words, Feb 5, 2025)
- [OpenSearch now supports DeepSeek chat models - OpenSearch](/content/blog/opensearch-now-supports-deepseek-chat-models/index.html): Discover how OpenSearch's new integration with DeepSeek chat models, including DeepSeek-R1, empowers cost-effective and flexible AI-powered search and analytics, with detailed steps for building Retrieval-Augmented Generation (RAG) systems. (930 words, Jan 29, 2025)
- [Introducing OpenSearch JavaScript client 3.0 - OpenSearch](/content/blog/introducing-opensearch-js-client-3-0.html): Explore OpenSearch.js client 3.0.0, featuring over 100 new API functions, improved readability, and a more accurate interface, all generated from the unified OpenSearch API specification for consistent and up-to-date client interactions. (513 words, Jan 22, 2025)
- [Solving the cold start search problem in OpenSearch - OpenSearch](/content/blog/cold-start-search/index.html): Understand and resolve the "cold start search" performance issue in OpenSearch by optimizing settings that control how documents are made searchable and how long a shard remains idle, ensuring faster initial searches after inactivity. (691 words, Jan 7, 2025)
- [Data Prepper 2.9.0 is ready for download - OpenSearch](/content/blog/data-prepper-2-9-0-is-ready-for-download/index.html): Introduction You can download Data Prepper 2.9.0 today. This release includes a number of core improvements as well as improvements to many popular processors. Expression improvements Data Prepper continues to... (838 words, Aug 29, 2024)
- [Multimodal search: Searching with semantic and visual understanding - OpenSearch](/content/blog/multimodal-semantic-search/index.html): As we witness the evolution of ML models, like large language models (LLMs), imagine if they possessed a new dimension – the ability to comprehend images. Similar to the game-changing... (2,377 words, Apr 11, 2024)
- [Configurable automation for OpenSearch ML use cases - OpenSearch](/content/blog/configurable-automation-for-opensearch-ml-use-cases.html): In OpenSearch, to use machine learning (ML) offerings, such as semantic, hybrid, and multimodal search, you often have to grapple with complex setup and preprocessing tasks. Additionally, you must write... (721 words, Apr 8, 2024)
- [Announcing Data Prepper 2.7.0 - OpenSearch](/content/blog/announcing-data-prepper-2-7-0/index.html): Data Prepper 2.7.0 is now available for download. This release supports extracting geographic locations from IP addresses, supports injectable secrets, and adds many new processors. GeoIP processor Data Prepper can now... (751 words, Mar 27, 2024)
- [Announcing Data Prepper 2.5.0 - OpenSearch](/content/blog/announcing-data-prepper-2-5-0/index.html): Data Prepper 2.5.0 is now available for download. This release includes a new OpenSearch source, new dissect and translate processors, and additions to the existing key-value processor. OpenSearch source The... (531 words, Oct 11, 2023)
- [What’s new: OpenSearch Reporting CLI - OpenSearch](/content/blog/whatsnew-reporting-cli/index.html): The OpenSearch Project is happy to announce the release of the Reporting CLI, making it convenient to generate reports externally without logging in to OpenSearch Dashboards. This gives you the... (614 words, Feb 14, 2023)
- [Introducing open-source Kubernetes Operator for OpenSearch - OpenSearch](/content/blog/launching-open-source-operator-for-opensearch/index.html): Overview Since the launch of the OpenSearch project, a fully open-source K8s Operator has been a popular request with the community. We are happy to announce the release for the OpenSearch Operator. The OpenSearch Operator is... (559 words, Apr 7, 2022)

## Listings & Categories

- [Alexei Atavin Archives - OpenSearch](/content/author/alexei-atavin/index.html) (78 words)
- [Theo Truong Archives - OpenSearch](/content/author/theo-truong/index.html) (103 words)
- [Akash Shankaran Archives - OpenSearch](/content/author/akash-shankaran/index.html) (98 words)
- [Amit Galitzky Archives - OpenSearch](/content/author/amit-galitzky/index.html) (164 words)
- [Huy Pham Archives - OpenSearch](/content/author/huy-pham/index.html) (51 words)

## Resources

- [Full Page Index](/index.html): Browse all cached pages with rich metadata
- [About This Cache](/content/about.html): Methodology, technical details, and usage guidelines
- [XML Sitemap](/sitemap.xml): Machine-readable sitemap for crawler discovery
- [Robots.txt](/robots.txt): Crawler directives