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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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Latest from UCloud Tech

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UCloud Tech

Oct 13, 2023 · Artificial Intelligence

How PEFT Transforms Large Model Fine‑Tuning: Additive, Prompt & LoRA Methods Explained

This article introduces parameter‑efficient fine‑tuning (PEFT) techniques—including additive adapters, soft‑prompt methods, selection‑based BitFit, and re‑parameterization approaches like LoRA and AdaLoRA—explains their architectures, experimental results, and provides end‑to‑end code for fine‑tuning ChatGLM2‑6B on a Chinese medical QA dataset.

AdaLoRALoRAPEFT

0 likes · 22 min read

How PEFT Transforms Large Model Fine‑Tuning: Additive, Prompt & LoRA Methods Explained

UCloud Tech

Sep 11, 2023 · Artificial Intelligence

Build a Soul‑Healing Chatbot with LangChain & Llama 2: A Step‑by‑Step Guide

This article walks through constructing a domain‑specific, soul‑healing chatbot using LangChain and Llama 2, comparing fine‑tuning versus external knowledge bases, detailing environment setup, data loading, text splitting, embedding with a Chinese model, vector store creation, prompt engineering, inference, and optimization strategies.

Fine-tuningKnowledge BaseLangChain

0 likes · 14 min read

Build a Soul‑Healing Chatbot with LangChain & Llama 2: A Step‑by‑Step Guide

UCloud Tech

Aug 30, 2023 · Artificial Intelligence

Unlocking Llama 2: Architecture, Training Insights, and Cloud Deployment Guide

This article explores Meta's Llama 2 large language model—its performance, expanded training data, architectural details, evaluation results, RLHF fine‑tuning process, and step‑by‑step deployment on UCloud UK8S using Docker and Kubernetes—providing a comprehensive guide for AI practitioners.

AI DeploymentLlama-2RLHF

0 likes · 11 min read

Unlocking Llama 2: Architecture, Training Insights, and Cloud Deployment Guide

UCloud Tech

Aug 14, 2023 · Artificial Intelligence

Deploy ChatGLM2‑6B on UCloud K8S: Complete Guide to Large Language Model Inference

This article reviews the architectures, training methods, and key characteristics of major open‑source large language models such as BERT, GPT, T5, LLaMA and ChatGLM, and then provides a step‑by‑step tutorial for deploying ChatGLM2‑6B on UCloud's UK8S platform using UFS storage, Kubernetes manifests, and command‑line tools.

ChatGLMKubernetesUCloud

0 likes · 14 min read

Deploy ChatGLM2‑6B on UCloud K8S: Complete Guide to Large Language Model Inference

UCloud Tech

Dec 8, 2022 · Information Security

How UCloud Defeated a 1.2 Tbps DDoS Assault: Insights & Defense Strategies

This article examines a recent 1.2 Tbps DDoS assault on a major UCloud client, detailing the attack timeline, mixed flood and connection‑exhaustion techniques, geographic and device source distribution, and UCloud’s comprehensive mitigation strategies and best‑practice recommendations for robust information security.

Cloud ProtectionDDoSIoT security

0 likes · 7 min read

How UCloud Defeated a 1.2 Tbps DDoS Assault: Insights & Defense Strategies

UCloud Tech

Dec 1, 2022 · Cloud Computing

How UCloud’s Low‑Cost Archival Storage Cuts Power Use with Smart Disk Management

This article explains how UCloud’s archival storage leverages inexpensive SMR disks, JBOD hardware, erasure‑coding blobs, and a power‑aware scheduling strategy to store massive cold data cheaply while still providing flexible, near‑real‑time retrieval when needed.

JBODarchival storagecloud storage

0 likes · 10 min read

How UCloud’s Low‑Cost Archival Storage Cuts Power Use with Smart Disk Management

UCloud Tech

Nov 25, 2022 · Databases

How URocksDB Solves RocksDB’s Availability and Performance Challenges in UCloud

This article explains how UCloud’s UKV-Meta leverages a customized URocksDB storage engine, addresses RocksDB’s durability and read‑performance drawbacks with a Share‑Nothing architecture, introduces hotspot splitting, hot‑standby replication, and seamless data migration to achieve high availability and scalability in cloud object storage.

Hotspot SplittingRocksDBURocksDB

0 likes · 13 min read

How URocksDB Solves RocksDB’s Availability and Performance Challenges in UCloud

UCloud Tech

Nov 21, 2022 · Cloud Computing

How UCloud Revamped US3 Metadata Service for 80% Cost Savings and Faster Performance

UCloud’s US3 object storage metadata service, originally built on a chained MongoDB architecture, faced scalability, performance, and cost challenges, prompting a redesign that introduces a high‑compatibility DB‑Gateway, a distributed KV store (UKV) with custom RocksDB, delivering faster reads, zero list‑service latency, 80% cost reduction, and simpler operations.

Distributed KVObject StoragePerformance optimization

0 likes · 8 min read

How UCloud Revamped US3 Metadata Service for 80% Cost Savings and Faster Performance

UCloud Tech

Nov 9, 2022 · Cloud Computing

How ROW‑Based Snapshot Cloning Achieves Seconds‑Level Bulk VM Creation

This article explains the challenges of bulk cloud VM provisioning, compares COW and ROW snapshot techniques, and details a ROW‑based architecture that reduces clone time to milliseconds, enabling thousands of VMs to be launched within minutes.

COWRowUDisk

0 likes · 14 min read

How ROW‑Based Snapshot Cloning Achieves Seconds‑Level Bulk VM Creation

UCloud Tech

Mar 14, 2022 · Operations

How to Build a 10,000‑Server Data Center Network in Hours with Big Bang

This article explains how UCloud’s Big Bang system automates data‑center network construction—from manual wiring and IP allocation to layered design, resource allocation, configuration generation, and zero‑touch provisioning—enabling a ten‑thousand‑server network to be deployed in just a few hours.

Configuration ManagementDSLData Center

0 likes · 18 min read

How to Build a 10,000‑Server Data Center Network in Hours with Big Bang