https://joelhanson.com/tags/performance/ Recent content in Performance on Joel Hanson Hugo -- gohugo.io en joelhanson025@gmail.com (Joel Hanson) joelhanson025@gmail.com (Joel Hanson) © Joel Hanson Sun, 02 Aug 2026 12:00:00 +0530 https://joelhanson.com/posts/31-when-one-kafka-partition-takes-all-the-heat/ Sun, 02 Aug 2026 12:00:00 +0530 joelhanson025@gmail.com (Joel Hanson) https://joelhanson.com/posts/31-when-one-kafka-partition-takes-all-the-heat/ Hot partitions show up as lag on one partition, a stressed broker, and consumers that do nothing when you scale out. Confirm the skew, fix the key, and recreate it locally with a Docker Compose demo. https://joelhanson.com/posts/26-shrink-kafka-integer-payloads-with-bijou64/ Sat, 06 Jun 2026 00:00:00 +0000 joelhanson025@gmail.com (Joel Hanson) https://joelhanson.com/posts/26-shrink-kafka-integer-payloads-with-bijou64/ 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.