Java on Joel Hanson

Apicurio Registry

joelhanson025@gmail.com (Joel Hanson) — Sat, 04 Jul 2026 00:00:00 +0000

Schema registry migration and upstream MCP work for IBM Event Streams.

bijou64

joelhanson025@gmail.com (Joel Hanson) — Sat, 06 Jun 2026 00:00:00 +0000

Shrink Kafka integer payloads with a compact encoding library for Java/Kafka apps.

Kafka Connector Template

joelhanson025@gmail.com (Joel Hanson) — Mon, 14 Apr 2025 00:00:00 +0000

Production-ready Kafka Connect template with Testcontainers integration tests.

SSE Kafka Connector

joelhanson025@gmail.com (Joel Hanson) — Tue, 01 Apr 2025 00:00:00 +0000

Kafka Connect source that turns Server-Sent Events streams into Kafka topics — used in Event Streams demos.

The Connector That Kept Retrying and Never Said So

joelhanson025@gmail.com (Joel Hanson) — Thu, 30 Jul 2026 10:00:00 +0530

A Kafka Connect MQ Sink looked healthy while messages never reached MQ — RetriableException loops in put() sit outside errors.retry.timeout. How we added mq.retry.timeout.ms so silent retries become visible failures.

Send Half the Bytes Over the Network: Cut Kafka Integer Payloads with Bijou64

joelhanson025@gmail.com (Joel Hanson) — Sat, 06 Jun 2026 00:00:00 +0000

Every Kafka record with a Long value you produce sends 8 bytes over the wire, even when the value is 42. Bijou64 encodes integers in 1–3 bytes with drop-in serializers, cutting network transfer and replication traffic on integer-heavy topics by up to 50% or more.

Shrink Kafka int payloads with bijou64

joelhanson025@gmail.com (Joel Hanson) — Sat, 06 Jun 2026 00:00:00 +0000

Variable-length unsigned 64-bit ints — small numbers stay small on the wire.

SSE Kafka Connector: Stream Real-time Events into Kafka

joelhanson025@gmail.com (Joel Hanson) — Wed, 27 Aug 2025 21:15:47 +0530

The Problem: Getting Real-time Data into Kafka
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Have you ever tried to stream Wikipedia changes or other real-time Server-Sent Events (SSE) updates into Kafka? If you have, you probably wrote custom Kafka producer and consumer code to handle these events, managed reconnections, and built your own error handling.

Java on Joel Hanson

Apicurio Registry

bijou64

Kafka Connector Template

SSE Kafka Connector

The Connector That Kept Retrying and Never Said So

Send Half the Bytes Over the Network: Cut Kafka Integer Payloads with Bijou64

Shrink Kafka int payloads with bijou64

SSE Kafka Connector: Stream Real-time Events into Kafka

The Problem: Getting Real-time Data into Kafka #

The Problem: Getting Real-time Data into Kafka
#