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This article introduces repmgr, an open‑source PostgreSQL replication manager, covering its architecture, election mechanism, core tools, metadata tables, installation steps, command syntax, configuration options, and common operations for building high‑availability database clusters.
This article explains the implementation principles, design ideas, and source‑code analysis of PostgreSQL's pg_recovery tool, detailing how it reads dead tuples, controls memory, and returns data through a custom function with configurable parameters.
This article explores emerging cloud‑native technologies such as MicroVMs, high‑performance WebAssembly, lightweight Kubernetes distributions, edge‑computing platforms, multi‑cluster management, and cloud‑native backup solutions, highlighting their advantages and the role they will play after Kubernetes.
This article explains workflow fundamentals using a train‑transport analogy, describes key design elements such as forms, task nodes, and routing, compares open‑source engines, and details a low‑code platform architecture that separates business logic, process control, and event handling for flexible, distributed execution.
This roundup highlights the launch of the PHP Foundation to boost the language’s bus factor, the Rust moderation team’s resignation protest, Amazon Linux 2022 preview, the CNCF‑sandboxed OpenELB project, and a multi‑part eBPF series for developers.
This article compares popular Kubernetes Operator scaffolding tools, explains why Kubebuilder 3.0 was selected for the radondb‑mysql‑kubernetes project, and provides step‑by‑step commands to initialize the operator and generate its API and controller code.
This article introduces the RadonDB MySQL Operator, explaining its design goals, deployment topology on Kubernetes, detailed architecture—including RBAC, manager, custom resources, and services—and provides a visual overview to help engineers simplify MySQL high‑availability deployments in cloud‑native environments.
This article delves into the eBPF virtual machine's architecture, detailing its register set, instruction classes, kernel helper invocation, and step‑by‑step analysis of sample bytecode that counts network packets, providing a solid foundation for advanced eBPF tooling.
This article walks through the high‑level components of eBPF programs—backend, loader, frontend, and data structures—showing how the original sock_example.c is split into separate files, how LLVM compiles restricted C to ELF, and how projects like BCC, BPFtrace, and IOVisor automate development, deployment, and cloud‑native observability while highlighting their trade‑offs for embedded environments.
This article introduces eBPF as a register‑based virtual machine inside the Linux kernel, explains its non‑Turing‑complete design, shows how programs are loaded, verified, and attached to events, and provides a complete C example that counts TCP, UDP, and ICMP packets on a loopback interface.
