Optimizing Long‑Connection Services with Netty: From Millions of Connections to High QPS

This article summarizes the challenges and optimization techniques for building a high‑performance long‑connection service with Netty, covering non‑blocking I/O, Linux kernel tuning, client‑side testing, VM‑based scaling, data‑structure tweaks, CPU and GC bottlenecks, and the final results of achieving hundreds of thousands of connections and tens of thousands of QPS on a single server.

GC tuningJava NIOLinux Tuning

0 likes · 14 min read

Optimizing Long‑Connection Services with Netty: From Millions of Connections to High QPS

Architecture Digest

Jun 22, 2022 · Backend Development

Implementing and Optimizing a High‑Concurrency Long‑Connection Service with Netty

This article explains how to build a scalable long‑connection server using Netty, discusses the underlying bottlenecks such as Linux kernel limits, CPU and GC issues, and provides practical code examples and tuning techniques to achieve hundreds of thousands of connections and high QPS.

Java NIOLong ConnectionsNetty

0 likes · 15 min read

Implementing and Optimizing a High‑Concurrency Long‑Connection Service with Netty

Top Architect

May 5, 2022 · Backend Development

Implementing High‑Performance Long‑Connection Services with Netty: Challenges, Bottlenecks, and Optimizations

This article explains how to build a scalable long‑connection server using Netty, covering the fundamentals of non‑blocking I/O, practical code examples for achieving millions of concurrent connections, common Linux kernel limits, CPU and GC bottlenecks, and a series of tuning techniques to dramatically improve QPS and stability.

Java NIOLong ConnectionsNetty

0 likes · 15 min read

Implementing High‑Performance Long‑Connection Services with Netty: Challenges, Bottlenecks, and Optimizations

JD Retail Technology

Jan 16, 2020 · Backend Development

Architecture and Key Technologies of a Scalable Message Push Platform

The document outlines the design, key components, data flow, and operational strategies of a large‑scale message push platform, detailing its architecture, request handling, long‑connection management, retry mechanisms, data statistics, monitoring, and future expansion plans.

Backend ArchitectureData AnalyticsLong Connections

0 likes · 15 min read

Architecture and Key Technologies of a Scalable Message Push Platform