Max retries exceeded with url：**** connection timed out

曾经终败给现在 2024-04-19 09:33 73阅读 0赞

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h6aGoyMDA3_size_16_color_FFFFFF_t_70][]

使用服务测试程序多次连续访问线上服务时报如上图错误，提示Max retries exceeded ，[解决办法][Link 1]：

import requests
    from requests.adapters import HTTPAdapter
    from requests.packages.urllib3.util.retry import Retry
    
    
    session = requests.Session()
    retry = Retry(connect=3, backoff_factor=0.5)
    adapter = HTTPAdapter(max_retries=retry)
    session.mount('http://', adapter)
    session.mount('https://', adapter)
    
    url='https://ss3.bdstatic.com/70cFv8Sh_Q1YnxGkpoWK1HF6hhy/it/u=1991157763,2687006238&fm=26&gp=0.jpg'
    
    rtn = session.get(url)
    #rtn = requests.get(url)
    print ('tm: {}'.format(rtn.elapsed.total_seconds()))

\#\#使用session比直接使用request的响应时间能减少许多\#\#

<table style="width:500px;"> 
 <tbody> 
  <tr> 
   <td>session.get（img_url）</td> 
   <td>requests.get(img_url)</td> 
  </tr> 
  <tr> 
   <td>idx: 0, tm: 0.077849<br> idx: 1, tm: 0.017109<br> idx: 2, tm: 0.016939<br> idx: 3, tm: 0.017196<br> idx: 4, tm: 0.016952<br> idx: 5, tm: 0.018025<br> idx: 6, tm: 0.016799<br> idx: 7, tm: 0.016912<br> idx: 8, tm: 0.017011<br> idx: 9, tm: 0.01792</td> 
   <td>idx: 0, tm: 0.087729<br> idx: 1, tm: 0.085991<br> idx: 2, tm: 0.071776<br> idx: 3, tm: 0.067098<br> idx: 4, tm: 0.069118<br> idx: 5, tm: 0.070823<br> idx: 6, tm: 0.069043<br> idx: 7, tm: 0.071704<br> idx: 8, tm: 0.072283<br> idx: 9, tm: 0.075987</td> 
  </tr> 
 </tbody> 
</table>

参考文献：

1.  [Max retries exceeded with URL in requests][Link 1]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h6aGoyMDA3_size_16_color_FFFFFF_t_70]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/18/8b05345303dd4e7db8f0b92e9d6d6f90.png
[Link 1]: https://stackoverflow.com/questions/23013220/max-retries-exceeded-with-url-in-requests