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This article details a week‑long investigation of intermittent Nacos service deregistration in a Spring Cloud Alibaba microservice environment, describing the background architecture, multiple hypothesis tests, diagnostic commands, kernel version mismatch, and the final fix by upgrading the Linux kernel.
This article explains how Rust's memory safety, concurrency guarantees, explicit error handling, and modern tooling make it a safer and more maintainable alternative to C for developing Linux kernel modules.
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This guide explains how to optimize Tomcat by adjusting maxThreads, acceptCount, maxConnections, and connectionTimeout, while also tuning Linux kernel parameters, TCP settings, and JVM options to achieve balanced CPU and I/O performance for high‑concurrency web services.
This article provides a comprehensive overview of the Linux kernel's exception handling mechanism, focusing on the __ex_table data structure, its creation via macros, how the kernel locates and executes fix‑up code, and the supporting APIs and sorting process that ensure reliable recovery from faults.
The article examines a long‑standing hidden bug in the Linux kernel’s page‑cache Xarray that caused occasional data loss with Large Folio support, details its discovery and fix by the TencentOS team, and shows how consolidating multiple tree walks into a single walk in Linux 6.10 reduced latency and improved performance by about ten percent.
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