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iQIYI Technical Product Team
iQIYI Technical Product Team
Apr 24, 2025 · Cloud Computing

Hybrid Cloud Anycast DNS Architecture and Implementation at iQIYI

iQIYI replaced its limited private‑cloud DNS by a hybrid‑cloud Anycast solution that uses an Enterprise Router with BGP‑advertised Anycast IPs and GRE tunnels to integrate public‑cloud DNS nodes, delivering unified, elastic domain resolution, rapid failover, and centralized management across IDC and cloud environments.

Anycast DNSBGPEnterprise Router
0 likes · 11 min read
Hybrid Cloud Anycast DNS Architecture and Implementation at iQIYI
ByteDance Cloud Native
ByteDance Cloud Native
Dec 27, 2024 · Cloud Native

How to Enable Direct Player Connections to Game Servers with Cloud‑Native Solutions

This article explains how to design a cloud‑native architecture that assigns fixed external addresses to individual game‑server pods in Kubernetes, allowing players to connect directly via CLB, EIP, or API Gateway, and describes the necessary Volcengine components and configuration steps.

Cloud NativeKubernetesdirect connection
0 likes · 11 min read
How to Enable Direct Player Connections to Game Servers with Cloud‑Native Solutions
Top Architect
Top Architect
Jul 18, 2024 · Backend Development

Implementing Gray Release in Spring Cloud with Nacos, Gateway, and Custom Load Balancer

This article provides a step‑by‑step guide to implementing gray (canary) release in a Spring Cloud microservice architecture, covering core components such as Nacos registration, Spring Cloud Gateway filters, custom Ribbon load‑balancing, OpenFeign interceptors, and configuration details with full code examples.

MicroservicesNacosOpenFeign
0 likes · 21 min read
Implementing Gray Release in Spring Cloud with Nacos, Gateway, and Custom Load Balancer
Tencent Cloud Developer
Tencent Cloud Developer
May 17, 2024 · Cloud Computing

QDSR: A High‑Performance QUIC Traffic Forwarding Framework for Cloud Services

QDSR is a high‑performance QUIC traffic‑forwarding framework that integrates Direct Server Return to remove redundant downstream forwarding in layer‑7 load balancers, allowing multiple real servers to stream data directly to clients via a one‑way tunnel, achieving up to 12.2× higher throughput and significantly lower latency while preserving security and connection consistency.

Direct Server ReturnQUICTraffic Forwarding
0 likes · 10 min read
QDSR: A High‑Performance QUIC Traffic Forwarding Framework for Cloud Services
DevOps Operations Practice
DevOps Operations Practice
Feb 11, 2024 · Cloud Native

MetalLB: Deploying a Load Balancer for Self‑Built Kubernetes Clusters

This article introduces MetalLB, explains its deployment requirements, describes its Layer2 and BGP operation modes, provides step‑by‑step installation and configuration instructions for Kubernetes clusters, and demonstrates verification of the load‑balancing functionality.

BGPCloud NativeDeployment
0 likes · 9 min read
MetalLB: Deploying a Load Balancer for Self‑Built Kubernetes Clusters
Bilibili Tech
Bilibili Tech
Dec 8, 2023 · Operations

Design and Implementation of Nickel: A High‑Performance Edge Four‑Layer Load Balancer Based on XDP

Nickel is a high‑performance, XDP‑based four‑layer edge load balancer that replaces Bilibili’s non‑clustered CDN architecture with a co‑deployed control plane and data plane, using hash‑based forwarding, dynamic health‑checks, and two‑hop routing to lower cost, improve load distribution, and eliminate dedicated load‑balancer machines.

Edge ComputingXDPcdn
0 likes · 15 min read
Design and Implementation of Nickel: A High‑Performance Edge Four‑Layer Load Balancer Based on XDP
Test Development Learning Exchange
Test Development Learning Exchange
Nov 3, 2023 · Cloud Native

Understanding Ingress Controllers: Converting Ingress Resources to Routing Rules, Configuring Load Balancers, and Enabling SSL

This article explains how an Ingress Controller automatically translates Ingress resources into routing rules, updates service routing tables, configures load balancers, and sets up SSL/TLS by providing clear examples and YAML manifests for Kubernetes environments.

Cloud NativeIngressKubernetes
0 likes · 4 min read
Understanding Ingress Controllers: Converting Ingress Resources to Routing Rules, Configuring Load Balancers, and Enabling SSL
Architect
Architect
Aug 14, 2023 · Backend Development

Load Balancer vs API Gateway: Functions, Differences, and Application Scenarios

This article explains the roles of load balancers and API gateways, compares their layer focus, features, and performance characteristics, and outlines when to use each technology—especially in micro‑service architectures and high‑throughput network entry points.

API GatewayBackend InfrastructureMicroservices
0 likes · 10 min read
Load Balancer vs API Gateway: Functions, Differences, and Application Scenarios
Selected Java Interview Questions
Selected Java Interview Questions
Jun 26, 2023 · Backend Development

Load Balancer vs API Gateway: Functions, Differences, and Use Cases

This article explains the roles of load balancers and API gateways, compares their layer focus, features, and performance, and outlines when to use each in microservice architectures, API management, and high‑throughput network entry points.

API GatewayBackendMicroservices
0 likes · 10 min read
Load Balancer vs API Gateway: Functions, Differences, and Use Cases
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Apr 14, 2023 · Backend Development

How Spring Cloud Gateway Routes Requests: Inside the Core Filters

An in‑depth walkthrough of Spring Boot 2.7.10 with Spring Cloud Gateway 3.1.6 shows how the RouteToRequestUrlFilter, ReactiveLoadBalancerClientFilter, NettyRoutingFilter, and NettyWriteResponseFilter sequentially transform incoming URLs, resolve service instances via load balancing, and forward requests to target microservices.

Backend DevelopmentFiltersMicroservices
0 likes · 13 min read
How Spring Cloud Gateway Routes Requests: Inside the Core Filters
Spring Full-Stack Practical Cases
Spring Full-Stack Practical Cases
Feb 20, 2023 · Cloud Native

Mastering Gray Release with Spring Cloud Gateway: A Step‑by‑Step Guide

This article explains gray (canary) release concepts, compares canary, A/B testing, and blue‑green strategies, and provides a complete Spring Cloud Gateway implementation—including custom load balancer, global filter, and configuration—so you can smoothly roll out new features while preserving system stability.

AB testingCanary DeploymentCloud Native
0 likes · 13 min read
Mastering Gray Release with Spring Cloud Gateway: A Step‑by‑Step Guide
Tencent Cloud Developer
Tencent Cloud Developer
Aug 29, 2022 · Cloud Computing

High‑Availability DNS Solutions on Tencent Cloud: BIND and CoreDNS with ETCD

The article details two high‑availability DNS implementations for Tencent Cloud—an intelligent BIND‑based server and a CoreDNS solution backed by an ETCD cluster—covering DNS fundamentals, installation steps, configuration files, zone creation, health checks, and verification of internal and external name resolution across multi‑AZ deployments.

BINDCoreDNSDNS
0 likes · 24 min read
High‑Availability DNS Solutions on Tencent Cloud: BIND and CoreDNS with ETCD
Big Data Technology Architecture
Big Data Technology Architecture
Jul 14, 2022 · Operations

Postmortem of Bilibili SLB Outage on July 13, 2021

This postmortem details the July 13, 2021 Bilibili outage caused by a Lua‑induced CPU 100% bug in the OpenResty‑based SLB, describing the incident timeline, root‑cause analysis, mitigation steps, and the subsequent technical and process improvements to enhance reliability and multi‑active deployment.

IncidentLuaOperations
0 likes · 16 min read
Postmortem of Bilibili SLB Outage on July 13, 2021
High Availability Architecture
High Availability Architecture
Jul 12, 2022 · Operations

Postmortem of the July 13, 2021 Bilibili SLB Outage: Timeline, Root Cause, and Improvement Measures

This article details the July 13, 2021 Bilibili service outage caused by a Lua‑based SLB CPU spike, describing the incident timeline, root‑cause analysis of a weight‑zero bug, mitigation steps including new SLB deployment, and the subsequent operational and architectural improvements.

High AvailabilityLuaOperations
0 likes · 17 min read
Postmortem of the July 13, 2021 Bilibili SLB Outage: Timeline, Root Cause, and Improvement Measures
Bilibili Tech
Bilibili Tech
Jul 12, 2022 · Operations

Bilibili SLB Outage Postmortem (July 13, 2021): Timeline, Root Cause, and Improvements

On July 13 2021 Bilibili’s L7 SLB crashed when a recent Lua deployment set a balancer weight to the string “0”, producing a NaN value that triggered an infinite loop and 100 % CPU, prompting emergency restarts, a fresh cluster rollout, and long‑term safeguards such as automated provisioning, stricter Lua validation, and enhanced multi‑active disaster‑recovery processes.

High AvailabilitySLBSRE
0 likes · 17 min read
Bilibili SLB Outage Postmortem (July 13, 2021): Timeline, Root Cause, and Improvements
Tencent Cloud Developer
Tencent Cloud Developer
Jun 17, 2022 · Cloud Native

How to Quickly Migrate Traditional Load Balancer Public Services to Serverless

By creating a Cloud Function, provisioning a public Classic Load Balancer, configuring a layer‑7 listener, and binding the function to the CLB, developers can quickly expose serverless services through a low‑cost, zero‑maintenance entry point, enabling fast migration of traditional public load‑balanced applications to the cloud.

CLBCloud FunctionTencent Cloud
0 likes · 4 min read
How to Quickly Migrate Traditional Load Balancer Public Services to Serverless
iQIYI Technical Product Team
iQIYI Technical Product Team
Dec 3, 2021 · Operations

DPVS v1.9.0 Release: High-Performance Network Load Balancer Update

DPVS v1.9.0, the latest open‑source four‑layer network load balancer from iQIYI, now fully supports DPDK‑20.11 LTS, offers streamlined compilation, universal flow management, dynamic mbuf fields, enhanced per‑core scheduling and UDP health checks, and has been running stably in production for three months.

DPDKDPVSNetwork Virtualization
0 likes · 18 min read
DPVS v1.9.0 Release: High-Performance Network Load Balancer Update
360 Smart Cloud
360 Smart Cloud
Feb 25, 2021 · Cloud Computing

Investigation and Resolution of Octavia API Slow Response Issue

This article details the background, architecture, step‑by‑step troubleshooting, analysis of network and server queues, and the final configuration changes that resolved the intermittent slow response times of the Octavia load‑balancer API in an OpenStack environment.

APIOctaviaOpenStack
0 likes · 7 min read
Investigation and Resolution of Octavia API Slow Response Issue
Java Architecture Diary
Java Architecture Diary
Jan 12, 2021 · Cloud Native

Master Spring Cloud LoadBalancer: Quick Start and Custom Strategies

This guide shows how to quickly integrate Spring Cloud LoadBalancer into a Spring Cloud 2020 project, configure built‑in round‑robin or random policies, create custom gray load‑balancing strategies, and streamline bean registration for advanced load‑balancing scenarios.

MicroservicesSpring Cloudcustomization
0 likes · 6 min read
Master Spring Cloud LoadBalancer: Quick Start and Custom Strategies