KubeCon + CloudNativeCon Japan 2025: Full Schedule

16-17 June
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Please note: This schedule is automatically displayed in Japan Standard Time (UTC+9:00). To see the schedule in your preferred timezone, please select from the drop-down menu to the right, above "Filter by Date." The schedule is subject to change and session seating is available on a first-come, first-served basis.

14:10 JST

Navigating Millions of Kafka Events in Real Time With OTel - Siddharth Vijay, Baazi Games & Shivay Lamba, Couchbase

Tuesday June 17, 2025 14:10 - 14:40 JST

Level 1 | Orion

How can real-time event streaming platforms, handling millions of events and complex data processing, maintain peak performance and reliability? Managing the same has previously been complex. The latest agent changes and addition of semantic convention in OpenTelemetry make it ideal to monitor highly distributed event streaming architectures (EDA) like Kafka. In this session we will discuss how these changes help standardize telemetry, explain the usage of span links for capturing several traces for a transaction in EDA.

The talk will also cover how Otel enables automatic anomaly detection particularly useful for identifying issues like Consumer Lag, Increased Latency in Event Processing, and Partition Failures. By leveraging context propagation, Otel tracks end-to-end latency across the entire Kafka ecosystem, including producers, brokers, and consumers.

The talk covers real-world examples from gaming platforms and data systems which have enabled Otel for Kafka monitoring.

Speakers

Shivay Lamba

Senior Engineer, Couchbase

Shivay Lamba is a software developer specializing in DevOps, Machine Learning and Full Stack Development. He is an Open Source Enthusiast and has been part of various programs like Google Code In and Google Summer of Code as a Mentor and is currently a MLH Fellow. He has also worked... Read More →

Siddharth Vijay

AVP Engineering & Head of DevOps, Baazi Games

Siddharth Vijay, AVP at Pokerbaazi and KubeCon India speaker, brings over 12 years of experience driving impactful projects in AI, Security, and Cloud. A firm advocate of open-source technologies, he has a proven track record of delivering practical solutions with real-world value... Read More →

Tuesday June 17, 2025 14:10 - 14:40 JST
Level 1 | Orion

Observability

Content Experience Level Intermediate
Presentation Language English

14:50 JST

Debugging OpenTelemetry: Ensuring Your Observability Signals Are Spot On - Kasper Borg Nissen, Dash0

Tuesday June 17, 2025 14:50 - 15:20 JST

Level 1 | Orion

OpenTelemetry has become the go-to framework for unifying observability signals across metrics, logs, and traces. However, implementing OpenTelemetry often comes with its own set of challenges: broken instrumentation, missing signals, and misaligned semantic conventions that undermine its effectiveness. Debugging these issues can be daunting, leaving teams stuck with incomplete or unreliable observability data.

In this session, Kasper will demystify the debugging process for OpenTelemetry. Attendees will learn how to identify and troubleshoot common issues, ensure signals are transferred correctly, and align instrumentation with semantic conventions for consistent insights. Through live demos, Kasper will showcase techniques for validating resource configurations, debugging signal pipelines, and building confidence in your observability setup. This session is designed for anyone looking to unlock the full potential of OpenTelemetry and create robust observability practices.

Speakers

Kasper Borg Nissen

Developer Relations, Dash0

Kasper is a Co-Chair for KubeCon+CloudNativeCon EU/NA, Kubestronaut, CNCF Ambassador, and co-founder of the Nordic meetup alliances, Cloud Native Nordics, where he also serves as Community Lead. He works in Developer Relations at Dash0, previously Lunar where he and his team built... Read More →

Tuesday June 17, 2025 14:50 - 15:20 JST
Level 1 | Orion

Observability

Content Experience Level Beginner
Presentation Language English

14:50 JST

Green OpenTelemetry: Have Your Cake and Eat It Too - Adriana Villela, Dynatrace & Nancy Chauhan, Student

Tuesday June 17, 2025 14:50 - 15:20 JST

Level 1 | Pegasus A-B1

It’s a not-so-dirty little secret that the technology that we so heavily rely on comes at an environmental cost. As technology becomes more complex, we need Observability to better understand it, and yet this too contributes to an increasing global tech carbon footprint.

Luckily, we have tools at our disposal that can help us understand our carbon footprint, and take mitigating actions. Tools like Kepler, Kube-Green, and green reviews.

In this talk, attendees will learn about Kepler, Kube-Green and green reviews. They will learn how to use these tools to make tweaks to their OpenTelemetry Collectors and other Kubernetes infrastructure. This will therefore keep systems observable while keeping the environment in mind.

Speakers

Nancy Chauhan

CNCF Ambassador, Engineer

I am Nancy Chauhan, a software engineer passionate about solving complex problems and enhancing software reliability. As a CNCF Ambassador, I engage with a global cloud-native community, contributing to open-source projects and fostering collaboration. I also founded the Women in... Read More →

Adriana Villela

Principal Developer Advocate, Dynatrace

Adriana Villela is a Principal Developer Advocate, helping companies achieve reliability greatness through Observability, SRE, & DevOps practices. Previously, she managed a Platform Engineering team & an Observability Practices team at Tucows. Adriana has worked at various large-scale... Read More →

Tuesday June 17, 2025 14:50 - 15:20 JST
Level 1 | Pegasus A-B1

Observability

Content Experience Level Intermediate
Presentation Language English

15:50 JST

The Future of Prometheus Exposition Format - Arthur Sens, Grafana Labs

Tuesday June 17, 2025 15:50 - 16:20 JST

Level 1 | Pegasus A-B1

OpenMetrics (OM) had a wild journey: it started as a project to standardize the Prometheus exposition format, and it became an entirely separate CNCF Incubating project. Even though the project had high maturity, it struggled for years to find tools to comply with the first version of the spec. Finally, in 2025, it was incorporated back into the Prometheus Github organization so Prometheus developers could lead the efforts for OM 2.0.

In this talk, Arthur, a Prometheus maintainer and OpenMetrics contributor, will walk you through the main challenges that tools like Prometheus and OpenTelemetry face when trying to comply with OpenMetrics 1.0 and how the community plans to address these challenges in OM 2.0.

The audience will also learn how changing an exposition format can make Prometheus and OpenTelemetry-Collector more memory-efficient while making their specifications easier to translate into each other!

Speakers

Arthur Silva Sens

Senior Software Engineer, Grafana Labs

Arthur Sens is a Software Engineer at Grafana, focusing on Prometheus and OpenTelemetry interoperability. He is also an active member and maintainer for both communities. The only things that can take Arthur away from the computer are his passion for lifting unnecessarily heavy... Read More →

Tuesday June 17, 2025 15:50 - 16:20 JST
Level 1 | Pegasus A-B1

Observability

Content Experience Level Beginner
Presentation Language English