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vivo Internet Technology
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vivo Internet Technology

Sharing practical vivo Internet technology insights and salon events, plus the latest industry news and hot conferences.

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Recent Articles

Latest from vivo Internet Technology

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vivo Internet Technology
vivo Internet Technology
Apr 16, 2025 · Big Data

Offline Mixed Deployment of Spark Tasks on Kubernetes: Containerization, Scheduling, and Elastic Resource Management

The article explains how the vivo Internet Big Data team containerized offline Spark jobs and deployed them with the Spark Operator on a mixed online‑offline Kubernetes cluster, using elastic scheduling and resource‑over‑subscription to boost CPU utilization by 30‑40% and handle over 100,000 daily tasks.

ContainerizationKubernetesSpark
0 likes · 36 min read
Offline Mixed Deployment of Spark Tasks on Kubernetes: Containerization, Scheduling, and Elastic Resource Management
vivo Internet Technology
vivo Internet Technology
Apr 2, 2025 · Databases

Case Study of Slow SQL Governance in an Activity Middleware System

The case study details how an activity‑middleware platform tackled slow SQL problems by cleaning historic data, introducing sharding and Elasticsearch off‑loading, optimizing queries with proper indexes and simplified joins, and automating nightly deletions, ultimately cutting daily slow queries from thousands to double‑digit levels and boosting system stability.

Database PerformanceMySQLSQL optimization
0 likes · 17 min read
Case Study of Slow SQL Governance in an Activity Middleware System
vivo Internet Technology
vivo Internet Technology
Mar 26, 2025 · Big Data

Reading Encrypted ORC Files in StarRocks: Architecture and Implementation Details

The article details how StarRocks extends the Apache ORC C++ library to decrypt column‑level encrypted ORC files, describing the file hierarchy, AES‑128‑CTR key handling, the query‑time master‑key retrieval, a decorator‑based decryption/decompression pipeline, and the block‑skip‑read mechanism that enables efficient predicate push‑down.

DatabaseFile FormatORC
0 likes · 19 min read
Reading Encrypted ORC Files in StarRocks: Architecture and Implementation Details
vivo Internet Technology
vivo Internet Technology
Mar 19, 2025 · Operations

Cache Monitoring Practices for Redis and Caffeine in High‑Traffic Game Services

The article details practical monitoring strategies for both remote Redis and local Caffeine caches in high‑traffic game services, including prefix‑based Redis key tracking, Aspect‑oriented instrumentation, Caffeine statistics collection, and real‑world case studies that illustrate how these metrics identify hot‑keys, cache‑miss spikes, and reduce system load.

AspectJCache MonitoringCaffeine
0 likes · 19 min read
Cache Monitoring Practices for Redis and Caffeine in High‑Traffic Game Services
vivo Internet Technology
vivo Internet Technology
Mar 5, 2025 · Cloud Native

Beidou Container Operations Management Platform: Architecture, Automation, and Capabilities

The Beidou Operations Management Platform, created by vivo’s Internet Server team, unifies management of over twenty Kubernetes clusters and tens of thousands of nodes, automates scaling, inspections, event collection, and Helm‑based application deployment, achieving more than 90% UI‑driven operations and dramatically improving stability and operational efficiency.

Container ManagementKubernetesOperations Automation
0 likes · 20 min read
Beidou Container Operations Management Platform: Architecture, Automation, and Capabilities
vivo Internet Technology
vivo Internet Technology
Feb 26, 2025 · Backend Development

Building a Million-User Group Chat System: Server-Side Architecture and Implementation

The article details how to engineer a Web‑based group chat that supports one million members by selecting WebSocket for real‑time communication, using read‑diffusion storage, a three‑layer architecture with Redis routing and Kafka queues, ensuring ordered, reliable delivery via TCP, ACKs and UUID deduplication, calculating unread counts with Redis ZSETs, and handling massive traffic through rate‑limiting, protobuf compression and message chunking.

Distributed ArchitectureIM SystemRedis
0 likes · 21 min read
Building a Million-User Group Chat System: Server-Side Architecture and Implementation
vivo Internet Technology
vivo Internet Technology
Feb 19, 2025 · Backend Development

vivo HTTPDNS End-to-End Integrated Solution: Architecture, Optimizations, and Business Impact

vivo’s end‑to‑end HTTPDNS solution integrates a client SDK, high‑performance service, unified scheduling gateway, and full‑link monitoring, cutting resolution latency by 36%, boosting DNS success to 99.85%, handling 1.5 billion queries daily, and preventing hijacking and misblocking across its ecosystem.

Backend DevelopmentDNS ResolutionHTTPDNS
0 likes · 19 min read
vivo HTTPDNS End-to-End Integrated Solution: Architecture, Optimizations, and Business Impact
vivo Internet Technology
vivo Internet Technology
Feb 12, 2025 · Artificial Intelligence

Bidirectional Optimization of NLLB-200 and ChatGPT for Low-Resource Language Translation

The paper proposes a bidirectional optimization framework that fine‑tunes the low‑resource NLLB‑200 translation model with LoRA using data generated by ChatGPT, while also translating low‑resource prompts with NLLB before feeding them to LLMs, thereby improving multilingual translation quality yet requiring careful validation of noisy synthetic data.

LLMLoRANLLB
0 likes · 28 min read
Bidirectional Optimization of NLLB-200 and ChatGPT for Low-Resource Language Translation