https://joelhanson.com/tags/troubleshooting/ Recent content in Troubleshooting 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/projects/kafka-common-problems/ Sun, 02 Aug 2026 00:00:00 +0000 joelhanson025@gmail.com (Joel Hanson) https://joelhanson.com/projects/kafka-common-problems/ Operational playbooks for common Kafka production issues — symptoms, diagnosis steps, and fixes you can walk with a customer. 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/29-the-connector-that-kept-retrying-and-never-said-so/ Thu, 30 Jul 2026 10:00:00 +0530 joelhanson025@gmail.com (Joel Hanson) https://joelhanson.com/posts/29-the-connector-that-kept-retrying-and-never-said-so/ 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.