我正在尝试在cloudera管理器设置之后创建一个群集，当Installing Selected Parcels时，它停留在activating，发出错误timed out并且日志会发出警告包裹没有分发但有活动状态激活。
请帮助，如何解决这个问题？
错误日志
Unexpected exception during download
Traceback (most recent call last):
File "/opt/cloudera-manager/cm-5.5.3/lib/cmf/agent/src/cmf/downloader.py", line 276, in _download
response = self.opener.fetch_url(request)
File "/opt/cloudera-manager/cm-5.5.3/lib/cmf/agent/src/cmf/downloader.py", line 69, in fetch_url
return urllib2.urlopen(request)
File "/usr/lib/python2.7/urllib2.py", line 127, in urlopen
return _opener.open(url, data, timeout)
File "/usr/lib/python2.7/urllib2.py", line 404, in open
response = self._open(req, data)
File "/usr/lib/python2.7/urllib2.py", line 422, in _open
'_open', req)
File "/usr/lib/python2.7/urllib2.py", line 382, in _call_chain
result = func(*args)
File "/usr/lib/python2.7/urllib2.py", line 1214, in http_open
return self.do_open(httplib.HTTPConnection, req)
File "/usr/lib/python2.7/urllib2.py", line 1187, in do_open
r = h.getresponse(buffering=True)
File "/usr/lib/python2.7/httplib.py", line 1051, in getresponse
response.begin()
File "/usr/lib/python2.7/httplib.py", line 415, in begin
version, status, reason = self._read_status()
File "/usr/lib/python2.7/httplib.py", line 371, in _read_status
line = self.fp.readline(_MAXLINE + 1)
File "/usr/lib/python2.7/socket.py", line 476, in readline
data = self._sock.recv(self._rbufsize)
timeout: timed out