The UK's Open Technology Conference, Open Source Software, Open Hardware, Open Data, Open Standards, & AI Openness is happening on the 4th and the 5th of February 2025, in Sancroft, Rose St, Paternoster Sq., St Paul's London EC4M 7DQ.
Our CEO, Robert Hodges, will be presenting the talk:
What’s a Data Lake and What Does It Mean For My Open Source Stack?
Data lakes on open table formats like Iceberg are a popular way to manage large datasets for analytics, data science, and AI. This talk explains how data lakes work and how to adapt open source analytic stacks to use them.

Join us in New York City for an evening of forward-thinking engineering and applied infrastructure innovation. At this meetup, you’ll hear from leading voices in the analytics and distributed database space on such topics as: How ClickHouse® and Apache Iceberg are enabling sub-second analytics over 100+ petabytes of data through stateless swarm clusters. How scalable, persistent memory architectures—powered by TiDB—are reshaping what’s possible in AI systems that think beyond the prompt. From streaming analytics to memory-enabled agents, this meetup is ideal for engineers, architects, and builders pushing the boundaries of data performance, intelligence, and design.

Real-time databases are integrating with data lakes to reduce storage costs and share data with AI and data science. Please join us to hear longtime ClickHouse practitioners share current problems and solutions as they negotiate the transition from closed storage models to open table formats like Apache Iceberg. There will be plenty of time to network: discuss problems and brainstorm solutions with your peers. 

OSA Con is proud to announce an evening devoted to four of the most popular analytic open source technologies on the planet: ClickHouse®, Presto, Gluten, and StarRocks. We'll have presentations from community experts followed by a panel featuring audience questions to the presenters. There will be refreshments, drinks, and lots of time for networking with other database developers. Join us!
​* OSA Con = Open Source Analytics Conference. The CfP for our main Conference in November is open now!

Our CEO, Robert Hodges, is presenting the talk What Does "Cloud Native" Mean for Databases? Let's Look at Code and Find Out! at the Software Architecture Conference 2025, which will be live-streamed across platforms like Facebook, LinkedIn, Twitter, Twitch, and CSharp TV.
Data lakes on open table formats like Iceberg are a popular way to manage large datasets for analytics, data science, and AI. This talk explains how data lakes work and how to adapt open source analytic stacks to use them. First, we'll tour projects like Arrow, Iceberg, and Unity Catalog that make data lakes possible. Next, we'll see how analytic engines like DuckDB, ClickHouse, and Spark are adapting. Finally, we'll survey a few projects that enable applications written in Python, Golang, or Rust to deliver fast queries. You'll have to build the app yourself, but this talk will show you a path to use data lakes and open source successfully.

Our CEO, Robert Hodges, is presenting the talk What’s a Data Lake and What Does It Mean For My Open Source Stack? at the Kansas City Developer Conference. The 2025 conference will be held August 13-15, with a pre-conference workshop day and two full conference days.
Data lakes on open table formats like Iceberg are a popular way to manage large datasets for analytics, data science, and AI. This talk explains how data lakes work and how to adapt open-source analytic stacks to use them. First, we'll tour projects like Arrow, Iceberg, and Unity Catalog that make data lakes possible. Next, we'll see how analytics engines like DuckDB, ClickHouse, and Spark are adapting. Finally, we'll survey a few projects that enable applications written in Python, Golang, or Rust to deliver fast queries. You'll have to build the app yourself, but this talk will show you a path to use data lakes and open source successfully.

Our colleague, Denys Kondratenko, presented the talk FinOps: Cloud Billing and Usage with ClickHouse at the FroSCon 2025.
Managing costs and billing across numerous Cloud-managed Kubernetes clusters presents significant challenges. In this talk, we’ll explore these challenges and discuss solutions using ClickHouse, OpenCost, and how a unified FOCUS schema helps with it. Leveraging ClickHouse’s capabilities, we’ll demonstrate how it efficiently imports diverse Cloud billing data streams. Additionally, we’ll delve into how OpenCost addresses the complexities of real-time cost management within a multitenant architecture. Join us to uncover practical insights into optimizing cloud costs effectively

Our CEO, Robert Hodges, is presenting the talk Cheap, Fast, Scalable: Introducing Analytics with Open Source ClickHouse® at the PDXPUG: OSS Database Spotlight Clickhouse Meetup on September 4th.
Real-time analytic databases are indispensable tools for quick insights on large datasets, and ClickHouse currently leads the pack in speed and usage. This talk shows the major features that make ClickHouse popular for real-time analytics and provides a jumping-off point to build your own apps. We’ll explain the internals of ClickHouse and provide explicit guidance on when to reach for it. (And when not to.;) We will also demo new work from Altinity that adds separable compute and storage using shared Apache Iceberg tables. We’ll include thoughts on design patterns for using PostgreSQL and ClickHouse productively together.

​Real-time databases are integrating with data lakes to reduce storage costs and share data with AI and data science. Please join us to hear from a range of experts as they share current problems and solutions while navigating the transition from closed storage models to open table formats like Apache Iceberg. There will be plenty of time to network: discuss problems and brainstorm solutions with your peers.
Join us in New York City for an evening with experts from ClickHouse, StarRocks, Snowflake, and AWS. Learn how to build high-performance real-time data lake systems. Networking to follow presentations. Food and drink provided!

Joshua Lee and Adriana Villela are presenting the talk Uncovered: The Hard Truth About OpenTelemetry's Vendor Neutrality at the Cloud Native Days Austria 2025 Conference. The 2025 conference will be held November 7-8.
We still hear people saying, "OpenTelemetry is vendor-neutral, so you can switch vendors any time you want to." This is like saying that because the vCard format exists, it's easy to switch from iOS to Android. Sure, your core data will ultimately be portable, but you'll be missing a *lot* of other things.
Does that make vendor neutrality moot? Not at all! Vendor-neutral instrumentation means that all of our code artifacts aren’t impacted by tool changes. Switching vendors won’t be like waving a magic wand, but it will be much easier thanks to OpenTelemetry (OTel). We’ll cover some of the challenges and pitfalls, and offer best practices to make this process as pain-free as possible.

Joshua Lee, is presenting the talk O11y in One: Exploring ClickHouse as a Unified Telemetry Database at Database Frontiers. The 2025 conference will be held on October 15.
OpenTelemetry is often introduced as a way to send your metrics, traces, and logs to separate backend databases. But in reality, most organizations juggle at least half a dozen monitoring tools in production.
What we really need isn’t just a standardized way to collect telemetry—it’s a unified datastore that brings all the backends together, much like how OpenTelemetry has unified telemetry collection. Could ClickHouse be that solution?
Join renowned database professionals at Database Frontiers free of charge – speakers at Database Frontiers will provide you with the answers to all of your most pressing database issues and so much more.

The Open Source Analytics Community is proud to host this meetup in London. Real-time databases are integrating with data lakes to reduce storage costs and share data with AI and data science. Please join us to hear from a range of experts as they share current problems and solutions while navigating the transition from closed storage models to open table formats like Apache Iceberg.