Differences between crawler dynamic forwarding and traditional API extraction:
As crawler workers, the first way to use proxy is to extract proxy through traditional API, and the program periodically obtains proxy IP information through URL. It needs to verify the availability of IP and change the proxy Settings. Meanwhile, it needs to design multi-thread asynchronous IO to realize concurrent processing of proxy IP, which is not only tedious but also affects efficiency.
There are local forwarding agent, the equivalent of the crawler agent of semi-finished products, due to its technical framework can’t implement automatic vast cloud proxy IP IP pool management and load balancing, forwarding IP will have to be submitted to the customer, the customer software by multithreading switch forward HTTP requests, leading to the crawler frame complex difficult to maintain, IP switching low efficiency at the same time, IP has higher failure rate.
And million NiuYun crawler proxy IP “through the fixed cloud agent service address, establish special line network link, agent platform automatically mass IP pool management and load balancing, real-time non-inductive millisecond proxy IP switching, provide enterprise cloud service requests the network stability and response speed, at the same time reduces the client computing load pressure, It avoids the crawler clients’ investment in proxy IP policy optimization and improves crawler efficiency as a whole.
