kafka Production Issues
Below is a practical, production‑focused checklist of common Kafka issues and their solutions , written from a DevOps / SRE / Cloud production perspective. This is aligned with real incidents seen in Kafka clusters and commonly documented production failure modes. [confluent.io] , [klogic.io] 1. Consumer Lag (Most Common Issue) Symptoms Increasing lag in kafka-consumer-groups.sh Delayed processing / SLA breach Frequent consumer rebalances Root Causes Consumers slower than producers Too few consumers vs partitions Downstream system (DB / API) slow Large message size or burst traffic Solutions Scale consumers (max = number of partitions) Optimize consumer logic (batch processing) Increase: max.poll.records fetch.min.bytes Reduce downstream dependency latency Add partitions if required (carefully) 👉 This is almost always a consumer-side stability or performance issue , not just a Kafka issue. Below is a structured production-grade troubleshooting + solution guide. Com...
