THE LINUX FOUNDATION PROJECTS

From keynotes to deep dives, explore the full lineup of talks from OpenSearchCon EU 2025, covering search, observability, AI, security, and more.

OpenSearchCon EU 2025 Highlights

Keynote: Welcome & Opening Remarks – Dagney Braun, Jochen Kressin & Eric Pugh

How To Start Contributing To OpenSearch Without Any Prior Knowledge on OpenSearch – Abdul Muneer Kolarkunnu, NetApp Instaclustr

Dive Deep on OpenSearch’s Vector Search – Jon Handler, Amazon Web Services & Yuye Zhu, Amazon

From Zero To Maintainer: How We Implement Generation of Code for 4 Clients (JS, Ruby, Python, Java) – Torekeldi Niyazbek, DEMETRA SYSTEMS

Where’s the Auto in Auto-Instrumentation? A Look at Current Automation Strategies with OTel – Joshua Lee, Altinity

Real-Time Analytics UX: Designing OpenSearch Interfaces for Security and Observability Teams – Xenia Tupitsyna, AWS; Laura Pavlov, Amazon Web Services; Aparna Sundar, OpenSearch Project

Managing Over 1,000 OpenSearch Clusters in a Private Cloud – Sun Ro Lee, LINE

Unlocking Insights from Multimodal PDFs Using OpenSearch and Vision-Language Models – Praveen Mohan Prasad & Mingshi Liu, AWS

Effortless Collaboration With OpenSearch Workspace: A Hands-On Demo – Abhay Baiju & Shambhavi Sarin

Unifying Diverse Logs in Big Data Systems for Seamless Analysis and Action With OpenSearch and LLMs – Satej Sahu, Zalando SE

Enhancing Application Observability With OpenSearch and OpenTelemetry – Karsten Schnitter, SAP SE

Building a Secure and Scalable LLM Infrastructure With OpenSearch – Pedro Guimaraes & Peter De Sousa

OpenSearch Indexes Made Easy: Terraform, Python, and a Sprinkle of Magic – Yulia Barabash & Laysa Uchoa, Nordcloud, IBM Company

Transforming Data Aggregation in OpenSearch: Achieving 100x Faster Performance – Ankit Jain & Sandesh Kumar, AWS

Diving in the World of Vectors for Semantic Search With OpenSearch – Parth Pandit & Amar Yashlaha

Exploring Tiered Caching in OpenSearch: Optimizing Performance With Multi-Layered Caching Strategies – Ankit Jain & Sagar Upadhyaya, AWS

Building a Communication Platform With OpenSearch for Optimized Text and Multi-Modal Data – Satej Sahu, Zalando SE

Keynote: The State of OpenSearch User Groups: Building a Global Community – Kris Freedain

Analytics Performance at Scale: The OpenSearch Star Tree Index Journey – Bharathwaj G & Sandesh Kumar, Amazon Web Services

Uber’s Innovations in OpenSearch for a Cloud Native, Serverless Future – Pallavi Priyadarshini, Amazon Web Services & Yupeng Fu, Uber

Mastering and Monitoring Our Smart Home With OpenSearch – Pietro Mele & Benjamin Dauvissat, Adelean

Cross-Reference Code Mapping System With OpenSearch – Irine Benoy & Ismael Hassane, Oracle

Powering up OpenSearch: A Journey of How OpenSearch Became Faster at Indexing – Mohit Godwani

Creating an API Definition for OpenSearch Retroactively – Pranav Garg & Sachet Jayaram Alva, Amazon

Enhancing Security in OpenSearch With Dynamic Authentication Methods – Sakshi Nasha, Cohesity

PutOpenSearchVector QueryOpenSearchVector: Use Case of Two Python NiFi Processors for OpenSearch – Vincenzo Lombardo, Seacom

Building an Open Source Observability Stack from Raw Telemetry – Joshua Lee, Altinity

Smarter Data, Smarter Decisions: Machine Learning Made Simple With OpenSearch – Seema Saharan

Security Monitoring of OpenSearch With OpenSearch – Nils Bandener, Eliatra & Craig Perkins, Amazon

Supercharging OpenSearch for RAG: Lessons From a Large-scale GenAI Deployment – Nabeel Janjua, HDI AG & Akarsha Sehwag, Amazon Web Services

Beyond Similar: Building Diverse Search With MMR – Joinal Ahmed, ntg & Nikhil Rana, Google Cloud

RAG From Text and Images Using OpenSearch and Vision Language Models – Jakub Zavrel & Batu Helvacioglu, Zeta Alpha

Optimizing OpenSearch Cluster Performance With Dynamic Sharding Strategy – Aswath Srinivasan & Robert Hoffmann, Amazon Web Services

Unlock NextGen Agentic Product Search With ML and LLM Innovations of OpenSearch – Praveen Mohan Prasad, AWS

Overcoming Challenges in Building a Multi-Tenant Logging Platform for Kubernetes – David Riepl & Maximilian Scharizer, RISE GmbH

How To Search 1 Billion Vectors in OpenSearch Without Losing Your Mind or Wallet – Fernando Rejon Barrera, Zeta Alpha

Keynote: Closing Remarks – Nate Boot, Amazon Web Services

Unconference Session: DevOps is a Foreign Language (Or Why There Are No Junior SREs) – Joshua Lee

Unconference Session: Keeping Data Silos Truly Isolated – Sakshi Nasha, Cohesity

Unconference Session: Optimising Search Relevance Using Querqy – Rene Kriegler

Unconference Session: Query Understanding With LLM – Praveen Mohan Prasad, AWS

Unconference Session: Search QPS – Aswath Srinivasan, AWS

Unconference Session: Test Search on Any Website With Quepid and Some Janky Javascript – Charlie Hall

Unconference Session: The Power of Data Visualizations – Karsten Schnitter, SAP

High Availability Architecture With OpenSearch – Gaurav Bafna & Varun Bansal, Amazon

A Tool for Eyeballing: Better Than NDCG? – Stavros Macrakis & Eric Pugh

Recreating Production Workload Behavior Is an Art, Not a Science – Ian Hoang & Rishabh Singh

Data Prepper or Logstash: Helping You Choose Your Ingestion – David Venable & Krishna Kondaka

Using OpenSearch With OpenTelemetry To Solve Real World Scenarios – Shambhavi Sarin & Abhay Baiju

Maximizing OpenSearch Cluster Performance: A Comprehensive Benchmarking Approach – Govind Kamat & Mike Oviedo, Amazon

Improve Auction House Search With Vector Capabilities: Bedrock or SageMaker Serverless Inference – Mikhail Chumakov, Actum Digital

Multi-tenant Workload Management in OpenSearch – Kaushal Kumar & Kunal Khatua, Amazon

FinOps for Observability: Reining in Hidden Monitoring Costs Across Distributed Teams – Amir Jakoby

OpenSearch Dashboards: Past Progress and Future Roadmap – Nate Boot, Amazon Web Services

Develop for Core Performance – Samuel Herman, DataStax

Testing, Testing, Testing! – Darshit Chanpura & Derek Ho, Amazon

Building the Future of Search: Hybrid Approaches With Neural Sparse and Dense Vectors – Aditya Soni, Forrester & Seema Saharan, Autodesk

Building a Resilient, Petabyte-Scale Logging Platform With OpenSearch – Mark Kavanagh & Parth Pandit