Official tech channel of 360, building the most professional technology aggregation platform for the brand.
This article explains what rate limiting is, why it is needed, the typical actions triggered by limiting, compares single‑node and distributed architectures, reviews four common limiting algorithms, and provides a detailed Redis‑Lua token‑bucket implementation with full source code.
This article explains the step‑by‑step process by which kubelet creates a sandbox container, invokes the CNI interface, runs Calico’s ADD command, and sets up routes, virtual interfaces, and IP allocation for pods in a Kubernetes cluster, including relevant Go code excerpts.
This article presents a method that replaces traditional manual video frame quality checks with an automated YOLOv5‑based object detection pipeline, detailing data labeling, model training, loss computation, inference code, and experimental results that show higher accuracy than ResNet for classifying black, color‑screen, and normal frames.
This guide details the investigation of Mellanox CX‑5 NIC support for OVS flow‑table acceleration, outlines required software versions, explains VT‑d and SR‑IOV technologies, provides step‑by‑step host configuration, OVS setup, test procedures, performance results in VXLAN and VLAN environments, and explores the feasibility and scripts for VF hot‑migration.
This article compares consortium (alliance) chains with public chains, explains why consortium chains are favored in enterprise scenarios, and details Hyperledger Fabric's admission mechanism, including MSP identity, channel architecture, and member management, supported by diagrams and practical examples.
This article explains how to back up a Kubernetes cluster by comparing etcd snapshot backups, resource‑level backups with tools like Velero, PX‑Backup and Kasten, and provides practical commands for creating snapshots, schedules, PVC migrations, and hook configurations.
This article investigates why an InfluxDB 1.8 instance on a 32‑core, 64 GB server consumes over 58 GB of resident memory and generates heavy disk I/O, examines Go runtime memory accounting, uses system tools such as top, pmap, pprof and iostat for diagnosis, and presents configuration and runtime tweaks that reduce memory pressure and I/O load.
This article explains the concept, application scenarios, and detailed implementations of distributed locks using Redis, Etcd, and Zookeeper, providing Java code examples, lock mechanisms, lease handling, watch features, and a comparative summary of their advantages and drawbacks.
This article provides a detailed explanation of MySQL InnoDB's lock system, covering lock granularity, shared and exclusive locks, intention and auto‑increment locks, various row‑lock types, deadlock scenarios with examples, and the internal representation of locks in the engine.
This guide explains how to capture internal audio from Android devices by running multiple MEmu emulators, parsing their configuration XML to map simulators to recordings, automating screen capture with Windows APIs, separating audio with FFmpeg, and addressing common pitfalls such as naming collisions and permission issues.
