What does concurrent count mean for proxy IPs: concurrent connection optimization configuration

What exactly is the concurrency count of a proxy IP?

To give a grounded example, it's like how many customers can be at the supermarket checkout counter at the same time. The concurrent number isHow many simultaneous web requests can your proxy IP handle?For example, if the number of concurrency is set to 50. For example, if the number of concurrency is set to 50, it is equivalent to 50 "checkout lanes" working at the same time. If you set it too low, it's like having only 2 cash registers and a long line behind them; set it too high, and the cashiers may get exhausted.

Many friends engaged in data collection or multi-account operation, often encounteredThe request is stuck.orIP blockedThe first is that the number of concurrency is not adjusted well. There is an e-commerce friend, before the free agent to do price monitoring, always be the target site blocked IP, and then the number of concurrency from the default 20 to 50, the collection speed directly doubled has not been blocked.

What is the scientific way to adjust this value?

The number of concoctions is like salt in a stir-fry, it depends on the amount of food:

Here's a pitfall to watch out for:Not all agent packages support high concurrencyThe first thing you need to do is to get the best out of it. Like some cheap proxy pools that claim to support 100 concurrency, but actually drop out over 30. That's why we recommend ipipgo's Dynamic Residential package, their enterprise version supports200+ concurrency without dropping, measured to run full 100 megabit bandwidth no problem.

Hands-on configuration

Take the Python crawler as a chestnut and control concurrency with connection pooling:

import requests
from requests.adapters import HTTPAdapter

s = requests.Session()
adapter = HTTPAdapter(pool_connections=50, total_connections
                     pool_maxsize=100) Maximum connections for a single host
s.mount('http://', adapter)

 Proxy format with ipipgo
proxies = {
  'http': 'http://用户名:密码@gateway.ipipgo.com:端口',
  'https': 'http://用户名:密码@gateway.ipipgo.com:端口'
}

response = s.get('destination URL', proxies=proxies, timeout=5)

here arepool_maxsizeControl the concurrency of a single domain name to prevent being blocked by the website. If you use a static residential IP, it is recommended that each IP with 5-10 concurrency, multi-IP stacked use. For example, buy 10 static IP, each open 5 concurrency, the total concurrency can be up to 50.

Common Rollover Scene QA

Q: What happens when the concurrency setting is high?
A: light request timeout, heavy IP is blocked. There is a cross-border e-commerce friends, concurrently set to 500 results of the entire agent pool was blocked, blood loss!

Q: How to test the optimal number of concurrency?
A: First use the test IP provided by ipipgo, start from 20 and gradually adjust upward, observe the success rate change. Their client comes with a stress test function, which is more convenient than writing your own script.

Q: How do you get millions of concurrency?
A: You have to use a distributed solution to assign proxy IPs to multiple servers. ipipgo's cross-border leased line supportMulti-region IP assignment automaticallyThe first one is a single cluster with 100,000 concurrencies, which was tested in conjunction with their API dynamic scheduling.

the right agent doubles the effect and halves the effort

Lastly, to be honest, adjusting the number of concurrency is like changing the oil for the car, depending on the engine performance. ipipgo's dynamic residential enterprise version, the actual test of a single IP can top 200 concurrency, much more stable than the ordinary proxy. They have aConcurrent Intelligent ConditioningThe black technology, which can automatically adjust according to the network conditions, is especially suitable for grabbing, live broadcasting and other such unexpected traffic scenarios.

Package price, the enterprise version of the dynamic residential only 9 yuan more than 1 G, cheaper than buying milk tea. If you do long-term business, it is recommended to directly on the customized program, can save a lot of silver. Before a cross-border e-commerce customers, with their customized program to save 30% cost, the key is not to toss their own agent pool.

In short play around with concurrency numbers and remember three key points:Test Start, Gradual Upward Adjustment, Choosing the Right AgentThe first thing you need to do is to get your hands on a free agent. Don't always think about whoring out free proxies, a reliable proxy service can make you lose a lot less hair.