Capacity Estimation for Web Crawler System Design
Below is the capacity estimation of web crawler system design:
1. User Base
- Estimate target domains: 100 popular news, blog, and e-commerce websites.
- Average number of pages per website: 1000 pages.
- Frequency of updates: Daily.
- Total pages to crawl per day: 100 (websites) * 1000 (pages per website) = 100,000 pages/day.
2. Traffic Estimation
- Historical data shows peak usage of 10,000 requests per minute during special events.
- Predicted future traffic levels: 20% increase annually.
- Current peak traffic: 10,000 requests per minute.
- Estimated peak traffic next year: 10,000 * 1.2 = 12,000 requests per minute.
3. Handling Peak Loads
- Plan for auto-scaling to handle up to 5 times the normal load during special events.
- Normal load: 1000 requests per minute.
- Peak load handling capacity: 1000 * 5 = 5000 requests per minute.
Design Web Crawler | System Design
Creating a web crawler system requires careful planning to make sure it collects and uses web content effectively while being able to handle large amounts of data. We’ll explore the main parts and design choices of such a system in this article.
Important Topics for Web Crawler System Design
- Requirements Gathering for Web Crawler System Design
- Capacity Estimation for Web Crawler System Design
- High-Level Design (HLD) for Web Crawler System Design
- Low-Level Design (LLD) for Web Crawler System Design
- Database Design for Web Crawler System Design
- Microservices and API Used for Web Crawler System Design
- Scalability for Web Crawler System Design