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37 Interactive Technology Team
37 Interactive Technology Team
Nov 4, 2024 · Artificial Intelligence

Developing RAG and Agent Applications with LangChain: A Case Study of an AI Assistant for Activity Components

The article outlines a step‑by‑step methodology for creating Retrieval‑Augmented Generation and custom Agent applications with LangChain, illustrated by an AI assistant for activity components that evolves from a rapid Dify prototype to a LangChain‑based RAG system and finally a hand‑crafted ReAct‑style agent, detailing LCEL chain composition, vector‑search integration, model performance trade‑offs, and a unified routing layer.

AI AssistantAgentCloud-native
0 likes · 6 min read
Developing RAG and Agent Applications with LangChain: A Case Study of an AI Assistant for Activity Components
Tencent Architect
Tencent Architect
Sep 4, 2024 · Databases

X‑Stor: A Cloud‑Native Multi‑Model NoSQL Database Service – Design, Architecture, and Evaluation

The article introduces X‑Stor, a cloud‑native NoSQL database service that supports multiple data models and process‑level multi‑tenant isolation, describes its plugin‑based architecture and Request Unit metric, and presents experimental results showing superior performance, effective tenant isolation, and load‑balancing benefits compared with traditional single‑model NoSQL systems.

Cloud-nativeNoSQLRequest Unit
0 likes · 11 min read
X‑Stor: A Cloud‑Native Multi‑Model NoSQL Database Service – Design, Architecture, and Evaluation
37 Interactive Technology Team
37 Interactive Technology Team
Feb 8, 2024 · Operations

What Are Kubernetes Events and How to Collect Them

Kubernetes events record state changes such as pod scheduling, image pulling, and failures, which can be inspected via kubectl but are retained only an hour, so tools like kube-eventer or kubernetes-event-exporter collect them for long‑term analysis, enabling monitoring of Warning types, failure reasons, and visualization through Grafana dashboards.

Cloud-nativeEventsGrafana
0 likes · 9 min read
What Are Kubernetes Events and How to Collect Them
37 Interactive Technology Team
37 Interactive Technology Team
Sep 7, 2023 · Cloud Native

Design and Implementation of the kjob Asynchronous Task Scheduling Platform on Kubernetes

The 37Game team built the cloud‑native kjob platform to replace VM‑based schedulers, providing a unified, highly available Kubernetes solution that manages both CronJob‑style scheduled tasks and long‑running Deployments through a backend‑agent architecture, offering CRUD operations, rich configuration, real‑time monitoring, alerting, and seamless migration.

Asynchronous JobsCloud-nativeGo
0 likes · 15 min read
Design and Implementation of the kjob Asynchronous Task Scheduling Platform on Kubernetes
DataFunSummit
DataFunSummit
Jun 4, 2023 · Databases

From Apache Doris to SelectDB: Evolution Towards the Next‑Generation Cloud‑Native Data Warehouse

This presentation introduces Apache Doris, examines changing data analysis demands in the cloud era, explains why SelectDB was created, and details SelectDB’s cloud‑native architecture, performance, unified capabilities, ease of use, cost efficiency, open‑source nature, and its application scenarios for modern data warehousing and log analytics.

AnalyticsApache DorisCloud-native
0 likes · 15 min read
From Apache Doris to SelectDB: Evolution Towards the Next‑Generation Cloud‑Native Data Warehouse
Xianyu Technology
Xianyu Technology
Dec 17, 2020 · Cloud Native

Elastic Scaling in Serverless Cloud‑Native Applications

Elastic scaling, a cornerstone of Xianyu’s shift to serverless cloud-native architecture, leverages Kubernetes autoscaling components—Cluster‑Autoscaler, HPA, VPA—to dynamically adjust resources via reactive thresholds or predictive models, yet faces challenges like cold‑starts, lack of scale‑to‑zero, and optimal pod‑pool buffering, prompting ongoing research for faster, smarter, safer scaling.

Auto ScalingCloud-nativeKubernetes
0 likes · 19 min read
Elastic Scaling in Serverless Cloud‑Native Applications
Xianyu Technology
Xianyu Technology
Nov 14, 2019 · Cloud Native

Evolution of Xianyu Transaction Link Architecture: From Frontend Decoupling to Cloud‑Native Integration

After the Double‑Eleven sales surge, Xianyu transformed its transaction link from a fragmented, frontend‑decoupled design into a unified cloud‑native stack using Dart, Flutter, and FaaS, enabling cross‑platform UI, server‑side glue code, and reducing development effort from three engineers to one while boosting stability and scalability.

Cloud-nativeFaaSFlutter
0 likes · 8 min read
Evolution of Xianyu Transaction Link Architecture: From Frontend Decoupling to Cloud‑Native Integration
Meituan Technology Team
Meituan Technology Team
May 12, 2017 · Cloud Native

Design and Implementation of the HULK Container Platform Scheduling System

The HULK Container Platform scheduling system, built for Meituan‑Dianping, combines a hybrid, actor‑based scheduler with filter‑and‑rank logic, configurable trade‑offs, and dynamic over‑commit to balance resource utilization, high availability, and massive concurrent placement decisions for thousands of containerized services.

Cloud-nativeDistributed SystemsDocker
0 likes · 17 min read
Design and Implementation of the HULK Container Platform Scheduling System