Company
Date Published
Author
Lucia Cerchie, Gerardo Villeda, Josep Prat
Word count
1268
Language
English
Hacker News points
None

Summary

The blog post explores methods for handling errors and implementing retry mechanisms in Apache Kafka applications, which operate in distributed environments where failures are common. It outlines various patterns for managing event streaming processes, emphasizing the importance of maintaining event order in scenarios such as change-data-capture streams. The post describes a specific use case involving an application that consumes, transforms, and produces events, and discusses the complexities of managing event order and retries when dependent conditions, like missing data, arise. A retry topic is introduced to handle such conditions, although this may disrupt the original event order, which can be critical in applications like inventory management. To address this, the post suggests tracking events using a local in-memory structure to ensure events for specific items are processed in sequence. Additionally, the use of tombstone events in a redirect topic aids in managing successful retries and maintaining system consistency. The article concludes by highlighting the release of Apache Kafka 3.8.0, featuring new developments, and invites readers to explore further resources through Confluent Developer.