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Configuration Guide

application.yml Structure​

spring:
  profiles:
    active: docker  # Options: local, docker, prod
  
  application:
    name: smart-city-platform
  
  # MongoDB Configuration
  data:
    mongodb:
      warm:
        uri: mongodb://admin:password123@core-mongo-warm:27017/warm_db?authSource=admin
      cold:
        uri: mongodb://admin:password123@core-mongo-cold:27017/cold_db?authSource=admin
  
  # Redis Configuration
  redis:
    host: core-redis-hot
    port: 6379
    timeout: 60000
  
  # RabbitMQ Configuration
  rabbitmq:
    addresses: rabbitmq-edge-1:5672,rabbitmq-edge-2:5673
    username: edge_user
    password: edge_pass
    template:
      receive-timeout: 2000

# ML Service Configuration
ml:
  service:
    url: http://smart-city-ml:8000
    timeout: 5000  # milliseconds

# Data Ingestion Configuration
ingestion:
  batch:
    size: 1000
    max-size: 5000
  schedule:
    fixed-rate: 10000  # milliseconds (10 seconds)

# Storage Configuration
storage:
  hot:
    ttl-seconds: 3600  # 1 hour
  warm:
    retention-days: 30
  cold:
    retention-days: 365

# Server Configuration
server:
  port: 8080

# Logging Configuration
logging:
  level:
    root: INFO
    com.smartcity: DEBUG

Environment Variables​

MongoDB​

# WARM Tier
MONGODB_WARM_URI=mongodb://admin:password123@core-mongo-warm:27017/warm_db?authSource=admin

# COLD Tier
MONGODB_COLD_URI=mongodb://admin:password123@core-mongo-cold:27017/cold_db?authSource=admin

Redis​

REDIS_HOST=core-redis-hot
REDIS_PORT=6379

RabbitMQ​

RABBITMQ_ADDRESSES=rabbitmq-edge-1:5672,rabbitmq-edge-2:5673
RABBITMQ_USERNAME=edge_user
RABBITMQ_PASSWORD=edge_pass

ML Service​

ML_SERVICE_URL=http://smart-city-ml:8000
ML_SERVICE_TIMEOUT=5000

Application​

SERVER_PORT=8080
SPRING_PROFILES_ACTIVE=docker

Profile Configurations​

local Profile (application-local.yml)​

spring:
  data:
    mongodb:
      warm:
        uri: mongodb://localhost:27018/warm_db
      cold:
        uri: mongodb://localhost:27019/cold_db
  redis:
    host: localhost
    port: 6379
  rabbitmq:
    addresses: localhost:5672,localhost:5673

ml:
  service:
    url: http://localhost:8000

docker Profile (application-docker.yml)​

spring:
  data:
    mongodb:
      warm:
        uri: mongodb://admin:password123@core-mongo-warm:27017/warm_db?authSource=admin
      cold:
        uri: mongodb://admin:password123@core-mongo-cold:27017/cold_db?authSource=admin
  redis:
    host: core-redis-hot
  rabbitmq:
    addresses: rabbitmq-edge-1:5672,rabbitmq-edge-2:5673

ml:
  service:
    url: http://smart-city-ml:8000

Configuration Properties Reference​

Ingestion Properties​

PropertyTypeDefaultDescription
ingestion.batch.sizeint1000Batch size cho mỗi pull
ingestion.batch.max-sizeint5000Maximum batch size
ingestion.schedule.fixed-ratelong10000Pull interval (ms)

Storage Properties​

PropertyTypeDefaultDescription
storage.hot.ttl-secondsint3600Redis TTL (seconds)
storage.warm.retention-daysint30MongoDB WARM retention
storage.cold.retention-daysint365MongoDB COLD retention

ML Service Properties​

PropertyTypeDefaultDescription
ml.service.urlstring-ML Service base URL
ml.service.timeoutint5000Request timeout (ms)

Docker Compose Configuration​

services:
  smart-city-backend:
    image: smart-city-backend:latest
    environment:
      - SPRING_PROFILES_ACTIVE=docker
      - MONGODB_WARM_URI=mongodb://admin:password123@core-mongo-warm:27017/warm_db?authSource=admin
      - MONGODB_COLD_URI=mongodb://admin:password123@core-mongo-cold:27017/cold_db?authSource=admin
      - REDIS_HOST=core-redis-hot
      - RABBITMQ_ADDRESSES=rabbitmq-edge-1:5672,rabbitmq-edge-2:5673
      - ML_SERVICE_URL=http://smart-city-ml:8000
    ports:
      - "8080:8080"
    depends_on:
      - rabbitmq-edge-1
      - rabbitmq-edge-2
      - core-redis-hot
      - core-mongo-warm
      - core-mongo-cold
      - smart-city-ml
    networks:
      - smartcity-network

Tuning Guide​

High Throughput​

Để tăng throughput, adjust các parameters sau:

ingestion:
  batch:
    size: 5000      # Tăng batch size
    max-size: 10000
  schedule:
    fixed-rate: 5000  # Giảm interval (pull frequency hơn)

Low Memory​

Nếu memory hạn chế:

ingestion:
  batch:
    size: 500       # Giảm batch size
    max-size: 1000
    
storage:
  hot:
    ttl-seconds: 1800  # Giảm TTL (30 phút)

Production Deployment​

logging:
  level:
    root: WARN
    com.smartcity: INFO  # Giảm logging

storage:
  warm:
    retention-days: 90   # Tăng retention
  cold:
    retention-days: 730  # 2 years