For your use case, creating a separate crawler instance for each domain could work, but it has potential downsides. Here's a breakdown to help you decide:
Downsides of Multiple Crawler Instances:- Increased Resource Usage: Each crawler instance runs its own event loop, maintains its own RequestQueue, and consumes memory. If you have many domains, this approach might significantly increase resource consumption.
- Coordination Complexity: Managing multiple crawlers can become complicated, especially when you need to monitor or restart them individually.
- Potential Limits on Concurrency: Depending on your system, running many instances in parallel might lead to bottlenecks (CPU, memory, network).
You can use one crawler instance with a shared RequestQueue and utilize domain-specific logic. Crawlee's flexibility makes this approach efficient:
some points:
- Efficiency: A single instance uses resources more effectively.
- Simpler Monitoring: You have only one crawler to monitor, restart, or debug.
- Better Concurrency Management: Crawlee lets you adjust maxConcurrency and maxRequestsPerCrawl, so you can balance the load across domains.
