What if the crawler fails to use the proxy IP request?
This article mainly explains "what to do if the crawler fails to use the proxy IP request". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn what to do if the crawler uses the proxy IP request to fail.
1. Slow down the crawling speed.
Reduce the pressure from the target site, but reduce the climb per unit time. Detect the speed limit set by the station and set a reasonable access speed.
2. Set interval access.
To collect the time interval, you can first test the maximum access frequency allowed by the target website. The closer to the maximum access frequency, the easier it is to package IP. This requires setting a reasonable time interval, which not only meets the collection speed but also has no IP limit.
3. In the Python web crawler, use the highly anonymous proxy IP.
Sometimes there is a lot of business, distributed crawlers are the best way to improve efficiency, while distributed crawlers urgently need a lot of IP resources, and free IP can not be satisfied, and free agents generally do not provide highly anonymous proxy IP, so it is not recommended to use free proxy IP.
4. Multi-thread crawling, multi-thread synchronous completion of multi-task.
The utilization rate of resources and the efficiency of the system are improved. The implementation of these threads needs to complete multiple tasks at the same time. Even catch more than one bug at a time. The strength of personnel is large, and so are reptiles, which can greatly improve the speed of crawling.
Thank you for your reading, the above is the content of "what to do if the crawler uses the proxy IP request failed". After the study of this article, I believe you have a deeper understanding of what to do when the crawler uses the proxy IP request to fail, and the specific use still needs to be verified in practice. Here is, the editor will push for you more related knowledge points of the article, welcome to follow!
