Rotating Proxy Networks - High-Volume Architecture
1. Requirements
High-volume operations require reliable, fast, geographically distributed proxy infrastructure. A single proxy handles 50-100 concurrent connections before degrading. Scaling requires horizontal distribution across hundreds or thousands of endpoints.
2. Backconnect Architecture
Backconnect proxy sits between your app and proxy pool. App connects to one IP, backconnect routes each connection through a different proxy.
Code:
import asyncio, random
from aiohttp import web, ClientSession
PROXIES = ["http://u:p@1.2.3.4:3128", "http://u:p@5.6.7.8:3128"]
async def handler(request):
proxy = random.choice(PROXIES)
async with ClientSession() as session:
async with session.get(request.url.path, proxy=proxy) as resp:
return web.Response(body=await resp.read())
app = web.Application()
app.router.add_route("*", "/{path:.*}", handler)
web.run_app(app, port=8080)3. Pool Management
- Pool sizing: 100-500 for moderate ops, 1000+ for high-volume scraping.
- Geo-distribution: Spread across 10+ countries.
- Concurrency: Max 10-20 connections per proxy.
- Cooldown: Rotate after 50 requests per IP.
- Warming: New proxies start slow, gradually increase volume.
High-volume proxy ops are engineering challenges first. Plan architecture before you need to scale.