Matthias J. Sax

Without the test case, we would not have made progress such quickly. Community collaboration at its best!

issues.apache.org/jira/browse/...

(Step 2) Another person sees the ticket and writes a test case that can reproduce the issue reliably.

(Step 3) Use the test to step through the code and identify a bug inside KafkaProducer.

(Step 4 -- TODO) Figure out how to fix it.

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I loving working with the #ApacheKafka community!

(Step 1) A person asks a question on Confluent Community Slack, and it sounds like a serious issue, so we ask them to file a Jira ticket.

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While we are waiting for Apache Kafka 4.1.0 release, the development does not stop. We just completed KIP-1034 (cwiki.apache.org/confluence/d...) which adds a DLQ feature to Kafka Streams. Very exciting!

Praise in public, criticize in private.

Does AI really make you more productive?

Early bird registration for #CommunityOverCode North America ends this week on June 28. Save $100 USD and snag your spot before the deadline.

The full event schedule is now available --> buff.ly/snfjTHi

Ready to register? Book here --> buff.ly/pPilMxx

The schedule is now available for Community Over Code North America, and early bird registration ends June 28. We hope you'll join the ASF community in Minneapolis Sept 11-14! buff.ly/4b8kciW

#CommunityOverCode #opensource

a man in a black suit says do it in white letters ALT: a man in a black suit says do it in white letters

It’s hard. But worth it!

No More Hiding: Kafka Streams as a First-Class Citizen in the Kafka Protocol Kafka Streams, the native stream processing technology of Kafka, stands out for its unique ability to assign work and propagate metadata among clients without the need for separate coordination infras...

If you're interested in the new rebalance protocol for Kafka Streams and couldn't attend my talk with @bruno.cadonna.name at Current London, the recording is now online: current.confluent.io/post-confere...

Apache Kafka 3.9.1 is now available for download: buff.ly/5ONjJgB

This bug-fix release has several fixes, and most importantly, it adds Java 23 support. #opensource

Pro-tip: just don’t do WiFi on a plane. Ever. — And enjoy the offline time.

He is not really sorry 😂

I feel like I've found a new controlling meme for open source contribution and innovation.

Finally! 🥁

@ableegoldman.bsky.social from @responsive.dev about async processing in #KafkaStreams

Or is it parallel processing? 🦦

#Current2025

Michelin runs ~250 #KafkaStreams apps to track tires. 🦦 #Current2025

Lighting talk by @malainda.bsky.social

Hartmut Armbruster — Deigning #KafkaStreams Topologies #Current2025

Packed session from Adidas: “From days to seconds: adidas' journey to scalable Kafka self-service”

@jbfletch.bsky.social unconfusing hybrid deployment. #Current2025

“Bite size #KafkaStreams” by @nbuesing.bsky.social at #Current2025 🎉

Before the conference, is before the other conference.

Now you have it. Hope I run into you. My planned schedule is there. Otherwise find me at the expo hall. Always love to talk to folks.

#Current2025

—Long live the otter. 🦦

Last but not least on Wednesday:

“Empowering Developers with a Centralized Kafka Library” from Ademir Spahic, Personify Health

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FOMO about “An Orchestrator for global data migrations: A Kafka-powered service mesh approach” and “Kafka Connection Chaos: Surviving the Storm”

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And does not get any easier:

“No More Hiding: Kafka Streams as a First-Class Citizen in the Kafka Protocol” from Lucas Brutschy, Confluent and Bruno Cadonna, Responsive.

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Next up, another FOMO slot:

“Async Processing: Get any Kafka Streams app into the throughput Olympics” from A. Sophie Blee-Goldman, Responsive

Need to skip “Migrating Kafka from ZooKeeper to KRaft: adventures in operations” and “Kafka Tiered Storage in Production?”

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Guess I will do the full talk from Marie-Laure and skip the lightning talk (sorry Sergey… FOMO)

Second interesting lighting talk at the same time:

“Don't Judge the Consumer by Its Lag: Uncovering the Metrics That Truly Matter” from Jungwook Song, SPITHA Inc

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Another #KafkaStreams conflict

“Massive Kafka Streams Topology Revamp in Production: No Chaos, No Headaches! My Key Takeaways 🦾!” from Marie-Laure Momplot, Michelin

“Tick-Tock with Kafka: Building Scalable Timer Functionality for Microservices” from Sergey Zyrianov, Cisco

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Both sound very interesting:

“Ensuring Client Continuity in Kafka: High Availability in Confluent Kafka” from Yalın Doğu Şahin and Mehmetcan Güleşçi

and

“How Kafka's new KRaft protocol replaces ZK for partition management, and improves data performance” from Amit Nijhawan

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