Zhuanzhuan Tech

Nov 4, 2020 · Backend Development

Analyzing ConsoleAppender Blocking and Using AsyncLogger for High-Performance Logging in Log4j2

This article investigates why using Log4j2's ConsoleAppender can block business threads, analyzes thread stack traces and performance bottlenecks, and demonstrates how switching to AsyncLogger with Disruptor dramatically improves logging throughput and eliminates service deadlocks.