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  • FOSSY 2026: What’s a Data Lake and What Does It Mean For My Open Source Stack?

    Bonaventure Hotel 900 de La Gauchetière West,, Montreal, Quebec, Canada

    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.

  • FOSSY 2026 – O11y in One: Exploring ClickHouse® as a Unified Telemetry Database

    OpenTelemetry unified how we collect telemetry, but most teams still juggle a handful of monitoring backends. Could ClickHouse® be the single datastore that brings them together?
    Josh explores what makes ClickHouse a strong fit for traces and logs, how it integrates with OpenTelemetry, Prometheus, Grafana, and Kafka, and the open-source observability platforms built on it, including CoRoot, QRYN, and SigNoz.

  • Cheap, Cheap, Cheap! 6 Best Practices to Save Big Money on Your ClickHouse® Bill

    Online Event

    Saving money is one of our favorite ways to help ClickHouse® users at Altinity. This talk covers best practices that delight your accountants while maintaining legendary ClickHouse speed. We'll start with the use of open source, explore how to reduce compute, storage, and networking, and finish with a look at cost-efficient hosting using Bring Your Own Cloud and inexpensive hardware providers. You don't need to be a ClickHouse expert to apply our recommendations. We'll teach you everything you need to get started on lowering bills today.

  • Berlin Meetup: Building AI Applications at Scale

    At this OSA Community meetup, engineers and practitioners will share how they’re building real-time analytics and AI systems at production scale: streaming pipelines, real-time databases, feature stores, event-driven architectures, and the open-source technologies making it all possible.

  • Warsaw Meetup: Building AI Applications at Scale

    At this OSA Community meetup, engineers and practitioners will share how they’re building real-time analytics and AI systems at production scale: streaming pipelines, real-time databases, feature stores, event-driven architectures, and the open-source technologies making it all possible.

  • Grafana & Friends Meetup – Observability, MCPs, and Tacos

    Excited to bring the community together for an evening of learning and great conversations! Come join Grafana, Altinity, and PostHog, our generous host for the night, for an in-person meetup focused on exciting topics in the observability space.