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When a system faces a sudden hundred‑fold increase in QPS, this guide walks backend engineers through emergency response, root‑cause analysis, robust design techniques, scaling options, and pressure testing to keep services stable and performant.
The 2026 AI4SE Industry Survey by China CAICT reveals that AI technologies—from large models to autonomous agents—are dramatically boosting efficiency across the software‑engineering lifecycle, raising maturity to core‑intelligence levels, expanding tool adoption, and driving a paradigm shift toward large‑scale, AI‑driven development.
The Chinese database sector has moved beyond the question of whether domestic products exist to a fierce survival race where legacy system weight, migration engineering, and ecosystem strength determine which vendors can become lasting, cloud‑native, and AI‑ready infrastructure assets.
This guide walks through practical techniques for detecting, tracing, and remediating Kubernetes cluster compromises, covering pod‑level debugging, node inspection, audit‑log analysis, and common attacker behaviors such as privileged pod creation and hostPath mounting.
The article analyses OpenClaw’s memory architecture, identifies five fundamental reasons why the agent forgets or ignores rules, and presents four configuration tweaks plus a self‑improving‑agent approach to make memory writes reliable and behavior enforcement more probable.
This article examines how PostgreSQL can take over Redis' roles—caching, pub/sub, and job queues—by leveraging unlogged tables, LISTEN/NOTIFY, and SKIP LOCKED, presenting cost savings, benchmark results, migration steps, and code examples for a practical backend replacement.
After struggling with naive RAG that delivered only 60% accuracy, the author outlines eleven advanced strategies—including context-aware chunking, query expansion, re‑ranking, multi‑query, knowledge graphs, and agent‑based retrieval—that together raise performance to 94%, and provides detailed implementation examples, trade‑offs, and a step‑by‑step deployment roadmap.
This article explains why encrypting sensitive fields like passwords, phone numbers, and ID numbers is essential, details a balanced approach using AES‑GCM encryption, HMAC indexes, and masked fields, and shares real‑world lessons from implementing the solution in a production system.
Ubuntu 26.04 LTS introduces three non‑reversible changes—cgroup v1 removal, a Rust‑rewritten sudo, and Rust‑based coreutils—that will block upgrades unless administrators audit, migrate, and validate their environments before the April 23 deadline.
The article analyzes the debate over placing JWT tokens in Redis, compares traditional session and JWT approaches, discusses security and performance trade‑offs, shows practical blacklist code, and explains when a centralized store is justified versus when true stateless JWTs are preferable.
