Maintained by a like‑minded team, covering both operations and development. Topics span Linux ops, DevOps toolchain, Kubernetes containerization, monitoring, log collection, network security, and Python or Go development. Team members: Qiao Ke, wanger, Dong Ge, Su Xin, Hua Zai, Zheng Ge, Teacher Xia.
During a traffic peak the CPU surged and thread dumps revealed many MySQL Statement Cancellation Timer threads; this article analyzes the root cause in the MySQL driver, Druid pool and MyBatis configuration, and provides concrete steps to eliminate the unwanted timer threads.
This article explains Linux disk I/O performance metrics, benchmark methods, observation tools like iostat, pidstat, and iotop, and walks through a practical case of diagnosing and resolving an I/O spike caused by the jbd2 journaling process.
This tutorial explains digital certificate fundamentals, common formats, the principles of one‑way and two‑way HTTPS authentication, and provides step‑by‑step Kubernetes configurations—including secret creation and Ingress setup—to implement secure TLS communication.
This article explains the different server storage types—including mechanical HDDs, solid‑state SSDs, various interfaces, RAID arrays, and network‑attached storage—while covering their structures, performance characteristics, Linux device handling, and how to choose the right solution based on cost, capacity, speed, and reliability.
This article explains how to use GitLab CI and Kubernetes namespaces to automate building, testing, and deploying containerized services, ensuring environment isolation, resource control, traceability, and low operational overhead without introducing additional platforms.
This article compares traditional independent config centers with Kubernetes as a config center, explains how to simplify environment variable handling, automatically generate Dockerfiles, and manage build and runtime images in Go projects, offering practical tips and code examples for containerized service deployment.
This informal blog recounts a developer’s hands‑on journey from puzzling over the buzzword “containerization” to building an automated GitLab‑CI, Docker, and Kubernetes pipeline, highlighting practical benefits, challenges, and the humorous “mop‑up” moments that make the transition both enlightening and entertaining.
This article walks through a real‑world Nginx reverse‑proxy SSL issue, explains the root cause of 502 and handshake failures caused by missing SNI support, and provides step‑by‑step configuration changes and code snippets to resolve the problem.
The article examines three common resume pitfalls for operations candidates—unclear focus, breadth without depth, and vague personal planning—and offers concrete strategies to highlight strengths, showcase impactful projects, and present a clear career trajectory to attract interview opportunities.
The article examines Vipshop's massive March 2023 outage caused by an IDC cooling failure, critiques superficial PPT‑driven reliability claims, and offers practical SRE insights on fault drills, true multi‑active architectures, and how ops teams can gain influence despite budget constraints.
