Question

我试图获取一个位于hive（hortonworks）的表，收集一些twitter数据以在机器学习项目上实现，使用pyhive，因为python3.6不支持pyhs2。

这是我的代码：

from pyhive import hive
conn = hive.Connection(host='192.168.1.11', port=10000, auth='NOSASL')
import pandas as pd
import sys
df = pd.read_sql("SELECT * FROM my_table", conn)
print(sys.getsizeof(df))
df.head()

出现此错误：

Traceback (most recent call last):
File "C:\Users\PWST112\Desktop\import.py", line 44, in <module>
conn = hive.Connection(host='192.168.1.11', port=10000, auth='NOSASL')
File "C:\Users\PWST112\AppData\Local\Programs\Python\Python36\lib\site-    packages\pyhive\hive.py", line 164, in __init__
response = self._client.OpenSession(open_session_req)
File "C:\Users\PWST112\AppData\Local\Programs\Python\Python36\lib\site- packages\TCLIService\TCLIService.py", line 187, in OpenSession
return self.recv_OpenSession()
File "C:\Users\PWST112\AppData\Local\Programs\Python\Python36\lib\site-packages\TCLIService\TCLIService.py", line 199, in recv_OpenSession
(fname, mtype, rseqid) = iprot.readMessageBegin()
File "C:\Users\PWST112\AppData\Local\Programs\Python\Python36\lib\site-packages\thrift\protocol\TBinaryProtocol.py", line 148, in readMessageBegin
name = self.trans.readAll(sz)
File "C:\Users\PWST112\AppData\Local\Programs\Python\Python36\lib\site-packages\thrift\transport\TTransport.py", line 60, in readAll
chunk = self.read(sz - have)
File "C:\Users\PWST112\AppData\Local\Programs\Python\Python36\lib\site-packages\thrift\transport\TTransport.py", line 161, in read
self.__rbuf = BufferIO(self.__trans.read(max(sz, self.__rbuf_size)))
File "C:\Users\PWST112\AppData\Local\Programs\Python\Python36\lib\site-packages\thrift\transport\TSocket.py", line 132, in read
message='TSocket read 0 bytes')
thrift.transport.TTransport.TTransportException: TSocket read 0 bytes
[Finished in 0.3s]

这是小费列表：

beautifulsoup4 (4.6.0)
bleach (2.0.0)
colorama (0.3.9)
cycler (0.10.0)
decorator (4.0.11)
entrypoints (0.2.3)
ez-setup (0.9)
future (0.16.0)
html5lib (0.999999999)
impala (0.2)
ipykernel (4.6.1)
ipython (6.1.0)
ipython-genutils (0.2.0)
ipywidgets (6.0.0)
jedi (0.10.2)
Jinja2 (2.9.6)
jsonschema (2.6.0)
jupyter (1.0.0)
jupyter-client (5.1.0)
jupyter-console (5.1.0)
jupyter-core (4.3.0)
konlpy (0.4.4)
MarkupSafe (1.0)
matplotlib (2.0.2)
mistune (0.7.4)
nbconvert (5.2.1)
nbformat (4.3.0)
nltk (3.2.4)
notebook (5.0.0)
numpy (1.13.1+mkl)
pandas (0.20.3)
pandocfilters (1.4.1)
pickleshare (0.7.4)
pip (9.0.1)
prompt-toolkit (1.0.14)
pure-sasl (0.4.0)
Pygments (2.2.0)
PyHive (0.5.0)
pyhs2 (0.6.0)
pyparsing (2.2.0)
python-dateutil (2.6.0)
pytz (2017.2)
pyzmq (16.0.2)
qtconsole (4.3.0)
sasl (0.2.1)
scikit-learn (0.18.2)
scipy (0.19.1)
setuptools (28.8.0)
simplegeneric (0.8.1)
six (1.10.0)
testpath (0.3.1)
thrift (0.10.0)
thrift-sasl (0.3.0)
tornado (4.5.1)
traitlets (4.3.2)
wcwidth (0.1.7)
webencodings (0.5.1)
wheel (0.30.0)
widgetsnbextension (2.0.0)

有人可以帮忙吗？我使用的是Windows 10。

非常感谢提前。

Answer 1

我不确定Hortonworks工具，但总的来说Cloudera连接似乎与Thrift和Sasl有问题。

我能够获得一个SqlAlchemy连接（使用Thrift）在Cloudera的Impyla模块上通过this issue的帮助推送和提取数据 - 它不是PyHive但是Thrift Tsocket连接似乎是造成错误的原因你的代码也是。您可以尝试锁定模块的版本;缺点是它需要Python 2.7。

如果你想测试版本锁定，这就是让我使用Thrift连接的原因：

pip install thrift==0.9.3
pip install thrift_sasl==0.2.1
pip uninstall sasl && pip install pure-sasl

希望这有帮助！

pyhive连接错误：thrift.transport.TTransport.TTransportException：TSocket读取0个字节

1 个答案: