HTTPConnectionPool(host='apk.gfan.com', port=80):

Exception in thread Thread-772:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 551, in __bootstrap_inner
  File "thread072413.py", line 32, in run
  File "/usr/local/lib/python2.7/dist-packages/requests/api.py", line 55, in get
  File "/usr/local/lib/python2.7/dist-packages/requests/api.py", line 44, in request
    return session.request(method=method, url=url, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 335, in request
    resp = self.send(prep, **send_kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 438, in send
    r = adapter.send(request, **kwargs)
  File "/usr/local/lib/python2.7/dist-packages/requests/adapters.py", line 327, in send
    raise ConnectionError(e)
ConnectionError: HTTPConnectionPool(host='apk.gfan.com', port=80): Max retries exceeded with url: /Product/App599419.html (Caused by <class 'socket.gaierror'>: [Errno -2] Name or service not known)


Exception in thread Thread-378:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 551, in __bootstrap_inner
  File "thread072413.py", line 32, in run
  File "/usr/local/lib/python2.7/dist-packages/requests/api.py", line 55, in get
  File "/usr/local/lib/python2.7/dist-packages/requests/api.py", line 44, in request
  File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 335, in request
  File "/usr/local/lib/python2.7/dist-packages/requests/sessions.py", line 438, in send
  File "/usr/local/lib/python2.7/dist-packages/requests/adapters.py", line 327, in send
    raise ConnectionError(e)
ConnectionError: HTTPConnectionPool(host='apk.gfan.com', port=80): Max retries exceeded with url: /Product/App5609.html (Caused by <class 'socket.gaierror'>: [Errno -2] Name or service not known)

### 关于 HTTP 连接池导致的连接错误解决方案 #### 升级依赖版本 对于由 `spring-cloud` 中组件引起的连接池问题,可以考虑将 `springcloud` 的版本升级到 Edgware.RELEASE,这会使得 `spring-cloud-commons-dependencies` 版本更新至1.3.2.RELEASE。此操作有助于修复因超时配置变化引发的一系列潜在问题[^2]。 #### 配置HTTP客户端以支持共享连接管理器 针对基于 Java 实现的服务端应用,通过调整 Apache HttpClient 设置来优化连接处理逻辑也是一种有效的手段。具体做法是在构建自定义HttpClient实例过程中启用连接管理器共享功能: ```java PoolingHttpClientConnectionManager ccm = new PoolingHttpClientConnectionManager(); ccm.setMaxTotal(200); // 总的最大连接数 ccm.setDefaultMaxPerRoute(20); // 每个路由基础的最大连接数 CloseableHttpClient client = HttpClients.custom() .setConnectionManager(ccm) .setDefaultCredentialsProvider(credentialsProvider) .setDefaultRequestConfig(defaultRequestConfig) .setConnectionManagerShared(true)// 启用连接池共享 .build(); ``` 上述代码片段展示了如何创建并配置一个带有共享连接管理器的Http Client对象[^3]。 #### 调整 Python 请求库中的连接池参数 当遇到像 `urllib3.connectionpool: Connection pool is full, discarding connection...`这样的警告信息时,则表明当前使用的Python环境下的requests库遇到了连接池满的情况。为了缓解这一状况,可以通过增加最大并发连接数量或者延长单次连接的有效期等方式来进行改进。下面给出一段简单的例子说明怎样修改默认行为: ```python import requests from urllib3.util.retry import Retry from requests.adapters import HTTPAdapter session = requests.Session() retries = Retry(total=5, backoff_factor=0.1, status_forcelist=[ 500, 502, 503, 504 ]) adapter = HTTPAdapter(pool_connections=100, pool_maxsize=100, max_retries=retries) session.mount('http://', adapter) session.mount('https://', adapter) ``` 这段脚本设置了更高的连接池容量以及更灵活重试机制,从而减少因为连接池溢出而丢弃有效连接的可能性[^4]。
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