使用python pyhdfs操作hadoop 出现ConnectionError: HTTPConnectionPool(host='bigdata-senior03.chybinmy.com'

博客内容讲述了在使用Python的pyhdfs库操作Hadoop时遇到`ConnectionError`，具体原因是数据节点域名在本地未正确映射。解决方案是在本地`hosts`文件中添加数据节点的IP和域名映射，从而成功解决问题。

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gaierror Traceback (most recent call last)
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\urllib3\connection.py in _new_conn(self)
158 conn = connection.create_connection(
--> 159 (self._dns_host, self.port), self.timeout, **extra_kw)
160

C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\urllib3\util\connection.py in create_connection(address, timeout, source_address, socket_options)
56
---> 57 for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
58 af, socktype, proto, canonname, sa = res

C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\socket.py in getaddrinfo(host, port, family, type, proto, flags)
732 addrlist = []
--> 733 for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
734 af, socktype, proto, canonname, sa = res

gaierror: [Errno 11001] getaddrinfo failed

During handling of the above exception, another exception occurred:

NewConnectionError Traceback (most recent call last)
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\urllib3\connectionpool.py in urlopen(self, method, url, body, headers, retries, redirect, assert_same_host, timeout, pool_timeout, release_conn, chunked, body_pos, **response_kw)
599 body=body, headers=headers,
--> 600 chunked=chunked)
601