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.
This article explains the G1 garbage collector’s heap layout, collection cycles, pause prediction, log analysis, and monitoring tools, helping Java developers diagnose and resolve performance issues such as frequent restarts, OOM, CPU spikes, and periodic latency spikes.
This guide explains how to retrieve the true client IP in environments with multiple proxy layers by understanding remote_addr, X-Forwarded-For, and X-Real-IP headers, and configuring HAProxy and Nginx Ingress with appropriate options to forward and preserve the original IP.
This guide demonstrates essential Java Stream API techniques—including grouping collections into maps, extracting first entries, performing reductions to find max or min, converting streams to lists, sorting, removing duplicates, and a comprehensive list of frequently used stream operations—providing practical code examples for Java 11 and 17.
This guide explains why frequent garbage collection and heap memory overflow occur in Java applications, demonstrates how to reproduce the issue with a sample program, and walks through various techniques—including jmap histograms, heap dumps, VisualVM analysis, and remote JMX monitoring—to diagnose and resolve out‑of‑memory errors.
This guide explains how KubeVela, as a declarative application delivery control plane, leverages GitOps with FluxCD to provide end‑to‑end workflows, infrastructure and application deployment, multi‑cloud strategies, and automated CI/CD pipelines for both platform operators and developers.
This guide walks through deploying Loki via Helm, configuring the OpenTelemetry Collector to use a filelog receiver and Loki exporter, and enabling Kubernetes event collection, providing step‑by‑step commands and YAML snippets for a complete logging pipeline in a Kubernetes cluster.
This guide walks through installing OpenTelemetry Collector on a Kubernetes cluster using Helm, configuring DaemonSet and Deployment collectors, integrating Prometheus for metrics, and customizing receivers, processors, and exporters to achieve comprehensive observability of nodes, pods, containers, and cluster resources.
This guide walks through automating frontend development tasks—using Husky for Git hooks, lint‑staged for staged file filtering, commitlint for standardized commit messages, ESLint and @typescript-eslint for code checking, and Prettier for formatting—providing installation commands, configuration snippets, and practical usage tips for React + TypeScript projects.
This guide walks through the two most typical Nginx HTTP‑to‑HTTPS redirection setups—direct client access and proxy‑mediated access—showing why the simple 301 rule works in the first case, why it fails with an upstream proxy, and how to correctly use request headers and Nginx variables to achieve reliable redirects.
Container runtimes are essential for managing containers in Kubernetes, and this article explains their core functions, compares Docker and containerd, details the CRI interface, explores supported backends, and provides practical command references to help you choose the optimal runtime for cloud‑native deployments.
