LINEヤフーが世界有数のKafkaデプロイメントのオブザーバビリティにClickHouseを活用

LINEヤフー, a digital infrastructure giant born from the merger of LINE and Yahoo! Japan, utilizes ClickHouse and Apache Kafka to handle over a trillion messages and 2.6 petabytes of I/O daily, operating one of the world's largest Kafka deployments. The company has built a sophisticated observability stack for real-time analysis and debugging, which is essential for managing its extensive data transfer needs among various services, including messaging, news, and payment systems. ClickHouse, chosen for its SQL compatibility, compression capabilities, and performance, allows the team to efficiently query vast amounts of data, aiding in the detection and resolution of Kafka-related issues, such as race conditions and performance declines. This observability is crucial for maintaining system reliability at such a massive scale, enabling the company to quickly identify and address previously unknown problems, thereby contributing solutions back to the Kafka community.