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UCloud Tech
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UCloud Tech

UCloud is a leading neutral cloud provider in China, developing its own IaaS, PaaS, AI service platform, and big data exchange platform, and delivering comprehensive industry solutions for public, private, hybrid, and dedicated clouds.

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Recent Articles

Latest from UCloud Tech

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UCloud Tech
UCloud Tech
Apr 8, 2020 · Cloud Native

Migrating Spring Cloud Microservices to UK8S for Scalable Cloud‑Native Operations

This article details how the Chinese travel platform “要出发” transformed its Spring Cloud‑based micro‑service architecture to a UK8S‑powered Kubernetes environment, introducing Spring Cloud Kubernetes discovery, Prometheus JVM monitoring, HPA‑driven autoscaling, Elastic APM tracing, and Istio service governance to achieve higher elasticity, observability, and operational efficiency.

IstioKubernetesPrometheus
0 likes · 11 min read
Migrating Spring Cloud Microservices to UK8S for Scalable Cloud‑Native Operations
UCloud Tech
UCloud Tech
Apr 2, 2020 · Operations

How Flowtable Hardware Offload Boosted Linux Netfilter Performance by Up to 8×

This article details the development, testing, and patch contributions for Netfilter and Mellanox flowtable hardware offload, showing how offloading conntrack and NAT functions dramatically improves bandwidth and packet‑per‑second metrics while exposing remaining challenges such as neighbor handling and port mangling.

Linux kernelNATflowtable
0 likes · 15 min read
How Flowtable Hardware Offload Boosted Linux Netfilter Performance by Up to 8×
UCloud Tech
UCloud Tech
Mar 24, 2020 · Artificial Intelligence

Why Does PyTorch Struggle with UFS Storage? Insights and Optimizations

A detailed case study reveals why PyTorch training on UFS file storage suffers severe I/O bottlenecks, compares it with local SSD and SSHFS, and presents practical optimizations such as using cv2.imdecode, caching DataLoader handles, and converting small‑file datasets into large UFS files to close the performance gap.

AI trainingOptimizationPyTorch
0 likes · 14 min read
Why Does PyTorch Struggle with UFS Storage? Insights and Optimizations
UCloud Tech
UCloud Tech
Mar 17, 2020 · Backend Development

How We Scaled an Online Education Platform 20× During COVID: A Technical Playbook

During the COVID‑19 school closures, the education platform rapidly expanded its backend and database architecture, achieving a 20‑fold traffic increase through vertical upgrades, read/write separation, high‑availability redesign, and meticulous performance tuning, all within a few days of planning and execution.

COVID-19 educationUDBbackend scaling
0 likes · 11 min read
How We Scaled an Online Education Platform 20× During COVID: A Technical Playbook
UCloud Tech
UCloud Tech
Mar 10, 2020 · Information Security

How a Game Company Defeated a 300G DDoS Ransom Attack with Cloud Defense

A Chinese game studio faced a massive 300 GB DDoS ransom attack, refused to pay, and, with UCloud's elastic high‑availability and Anycast cleaning technologies, repelled the assault while detailing the attackers' methods and offering a public‑cloud DDoS mitigation guide.

AnycastDDoSGame Industry
0 likes · 8 min read
How a Game Company Defeated a 300G DDoS Ransom Attack with Cloud Defense
UCloud Tech
UCloud Tech
Feb 20, 2020 · Artificial Intelligence

How UCloud’s AI Mask Detection Service Reaches 99% Accuracy in One Week

This article explains how UCloud’s AI team leveraged the UAI‑Train and UAI‑Inference platforms to develop, train, and deploy a high‑accuracy face‑mask detection service within a week, detailing the algorithmic approach, challenges, deployment pipeline, and real‑world applications.

AICloud AIFace Detection
0 likes · 10 min read
How UCloud’s AI Mask Detection Service Reaches 99% Accuracy in One Week
UCloud Tech
UCloud Tech
Feb 14, 2020 · Cloud Computing

How UCloud Powered Rapid Mask-Reservation Systems During COVID-19

During the COVID-19 outbreak, UCloud helped Ningbo’s districts launch mask-reservation platforms in just days by leveraging public-cloud components such as UK8S, UDB, UES and CI/CD pipelines, demonstrating fast, scalable, and resilient cloud-native solutions for high-traffic public services.

Pandemic Responsemask reservationpublic cloud
0 likes · 9 min read
How UCloud Powered Rapid Mask-Reservation Systems During COVID-19
UCloud Tech
UCloud Tech
Jan 16, 2020 · Operations

How to Build a Low‑Latency, Lossless RoCE Network for High‑Performance Data Centers

This article explains how to design a low‑overhead, high‑performance lossless RoCE network for data centers, covering RDMA basics, mainstream network options, QoS, lossless and congestion‑control designs, buffer management, deadlock analysis, and practical tuning to achieve sub‑100 µs latency and near‑full bandwidth utilization.

Congestion ControlData Center NetworkingLossless Ethernet
0 likes · 21 min read
How to Build a Low‑Latency, Lossless RoCE Network for High‑Performance Data Centers
UCloud Tech
UCloud Tech
Jan 7, 2020 · Cloud Computing

How Multi‑Tunnel Architecture Resolved Physical Cloud Traffic Overload

This article details how UCloud tackled severe traffic overload in its physical cloud gateway caused by hash polarization, introducing a multi‑tunnel solution, capacity management, isolation‑zone migration, and automated operations to achieve high availability and support hundreds of gigabits of traffic.

Network Trafficcapacity managementhash polarization
0 likes · 10 min read
How Multi‑Tunnel Architecture Resolved Physical Cloud Traffic Overload