【发布时间】:2018-02-04 20:48:01
【问题描述】:
使用 Python 连接到 Hive2 时,代码如下:
import pyhs2
with pyhs2.connect(host='localhost',
port=10000,
authMechanism="PLAIN",
user='root',
password='test',
database='default') as conn:
with conn.cursor() as cur:
#Show databases
print cur.getDatabases()
#Execute query
cur.execute("select * from table")
#Return column info from query
print cur.getSchema()
#Fetch table results
for i in cur.fetch():
print i
我遇到以下错误:
File
"C:\Users\vinbhask\AppData\Roaming\Python\Python36\site-packages\pyhs2-0.6.0-py3.6.egg\pyhs2\connections.py",
line 7, in <module>
from cloudera.thrift_sasl import TSaslClientTransport ModuleNotFoundError: No module named 'cloudera'
这里是安装到现在的包:
bitarray0.8.1,certifi2017.7.27.1,chardet3.0.4,cm-api16.0.0,cx-Oracle6.0.1,future0.16.0,idna2.6,impyla0.14.0,JayDeBeApi1.1.1,JPype10.6.2,ply3.10,pure-sasl0.4.0,PyHive0.4.0,pyhs20.6.0,pyodbc4.0.17,requests2.18.4,sasl0.2.1,six1.10.0,teradata15.10.0.21,thrift0.10.0,thrift-sasl0.2.1,thriftpy0.3.9,urllib31.22
使用 Impyla 时出错:
Traceback (most recent call last):
File "C:\Users\xxxxx\AppData\Local\Programs\Python\Python36-32\Scripts\HiveConnTester4.py", line 1, in <module>
from impala.dbapi import connect
File "C:\Users\xxxxx\AppData\Local\Programs\Python\Python36-32\lib\site-packages\impala\dbapi.py", line 28, in <module>
import impala.hiveserver2 as hs2
File "C:\Users\xxxxx\AppData\Local\Programs\Python\Python36-32\lib\site-packages\impala\hiveserver2.py", line 33, in <module>
from impala._thrift_api import (
File "C:\Users\xxxxx\AppData\Local\Programs\Python\Python36-32\lib\site-packages\impala\_thrift_api.py", line 74, in <module>
include_dirs=[thrift_dir])
File "C:\Users\xxxxx\AppData\Local\Programs\Python\Python36-32\lib\site-packages\thriftpy\parser\__init__.py", line 30, in load
include_dir=include_dir)
File "C:\Users\xxxxx\AppData\Local\Programs\Python\Python36-32\lib\site-packages\thriftpy\parser\parser.py", line 496, in parse
url_scheme))
thriftpy.parser.exc.ThriftParserError: ThriftPy does not support generating module with path in protocol 'c'
【问题讨论】:
-
我很惊讶这么多人突然抱怨 PyHive(目前已损坏 [2017 年 8 月])和 PyHS2(您显然无法正常工作)。改用 ImPyla。它由 Cloudera 维护。它有效。
-
@SamsonScharfrichter:我也曾在 Impyla 中尝试过,如上所述更新了错误日志
-
PySpark 怎么样?
-
看起来你的 Python 堆栈中有一个恶意依赖项,它与所有 DB 驱动程序一起玩地狱......我建议你进行单独的、干净的 Python 安装,但使用 Anaconda;然后是 Impyla 的全新安装(使用 Anaconda 安装程序,参见anaconda.org/conda-forge/impyla)。如果该方法有效,那么您肯定会知道您当前的 Python 安装是罪魁祸首。
-
回到基础:(1) 你在服务器端运行哪个版本的 Hive 以及 (2) 其他人是否成功连接到那个东西?
标签: python python-3.x hadoop hive cloudera