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
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\urllib3\connectionpool.py in _make_request(self, conn, method, url, timeout, chunked, **httplib_request_kw)
353 else:
--> 354 conn.request(method, url, **httplib_request_kw)
355
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\http\client.py in request(self, method, url, body, headers)
1106 """Send a complete request to the server."""
-> 1107 self._send_request(method, url, body, headers)
1108
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\http\client.py in _send_request(self, method, url, body, headers)
1151 body = _encode(body, 'body')
-> 1152 self.endheaders(body)
1153
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\http\client.py in endheaders(self, message_body)
1102 raise CannotSendHeader()
-> 1103 self._send_output(message_body)
1104
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\http\client.py in _send_output(self, message_body)
933
--> 934 self.send(msg)
935 if message_body is not None:
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\http\client.py in send(self, data)
876 if self.auto_open:
--> 877 self.connect()
878 else:
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\urllib3\connection.py in connect(self)
180 def connect(self):
--> 181 conn = self._new_conn()
182 self._prepare_conn(conn)
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\urllib3\connection.py in _new_conn(self)
167 raise NewConnectionError(
--> 168 self, "Failed to establish a new connection: %s" % e)
169
NewConnectionError: <urllib3.connection.HTTPConnection object at 0x0000026844D5A278>: Failed to establish a new connection: [Errno 11001] getaddrinfo failed
During handling of the above exception, another exception occurred:
MaxRetryError Traceback (most recent call last)
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\requests\adapters.py in send(self, request, stream, timeout, verify, cert, proxies)
448 retries=self.max_retries,
--> 449 timeout=timeout
450 )
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)
637 retries = retries.increment(method, url, error=e, _pool=self,
--> 638 _stacktrace=sys.exc_info()[2])
639 retries.sleep()
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\urllib3\util\retry.py in increment(self, method, url, response, error, _pool, _stacktrace)
397 if new_retry.is_exhausted():
--> 398 raise MaxRetryError(_pool, url, error or ResponseError(cause))
399
MaxRetryError: HTTPConnectionPool(host='bigdata-senior03.chybinmy.com', port=50075): Max retries exceeded with url: /webhdfs/v1/data/ah.txt?op=CREATE&user.name=root&namenoderpcaddress=bigdata-senior01.chybinmy.com:8020&createflag=&createparent=true&overwrite=false (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x0000026844D5A278>: Failed to establish a new connection: [Errno 11001] getaddrinfo failed',))
During handling of the above exception, another exception occurred:
ConnectionError Traceback (most recent call last)
<ipython-input-5-dff7e0d3e422> in <module>()
----> 1 client.copy_from_local("G:/安装文件/Readme.txt","/data/ah.txt")
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\pyhdfs.py in copy_from_local(self, localsrc, dest, **kwargs)
751 """
752 with io.open(localsrc, 'rb') as f:
--> 753 self.create(dest, f, **kwargs)
754
755 def copy_to_local(self, src, localdest, **kwargs):
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\pyhdfs.py in create(self, path, data, **kwargs)
424 assert not metadata_response.content
425 data_response = self._requests_session.put(
--> 426 metadata_response.headers['location'], data=data, **self._requests_kwargs)
427 _check_response(data_response, expected_status=httplib.CREATED)
428 assert not data_response.content
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\requests\api.py in put(url, data, **kwargs)
129 """
130
--> 131 return request('put', url, data=data, **kwargs)
132
133
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\requests\api.py in request(method, url, **kwargs)
58 # cases, and look like a memory leak in others.
59 with sessions.Session() as session:
---> 60 return session.request(method=method, url=url, **kwargs)
61
62
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\requests\sessions.py in request(self, method, url, params, data, headers, cookies, files, auth, timeout, allow_redirects, proxies, hooks, stream, verify, cert, json)
531 }
532 send_kwargs.update(settings)
--> 533 resp = self.send(prep, **send_kwargs)
534
535 return resp
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\requests\sessions.py in send(self, request, **kwargs)
644
645 # Send the request
--> 646 r = adapter.send(request, **kwargs)
647
648 # Total elapsed time of the request (approximately)
C:\Users\mr-chen\Anaconda3\envs\hadoop\lib\site-packages\requests\adapters.py in send(self, request, stream, timeout, verify, cert, proxies)
514 raise SSLError(e, request=request)
515
--> 516 raise ConnectionError(e, request=request)
517
518 except ClosedPoolError as e:
ConnectionError: HTTPConnectionPool(host='bigdata-senior03.chybinmy.com', port=50075): Max retries exceeded with url: /webhdfs/v1/data/ah.txt?op=CREATE&user.name=root&namenoderpcaddress=bigdata-senior01.chybinmy.com:8020&createflag=&createparent=true&overwrite=false (Caused by NewConnectionError('<urllib3.connection.HTTPConnection object at 0x0000026844D5A278>: Failed to establish a new connection: [Errno 11001] getaddrinfo failed',))
很明显，ConnectionError: HTTPConnectionPool(host='bigdata-senior03.chybinmy.com', port=50075)，这是我的数据节点的域名，没有在我python程序所在的主机上映射。
解决方案：
打开：C:\Windows\System32\drivers\etc
在hosts中加上ip和域名的映射：
问题成功解决。