背景

聯結器一般使用impyla，但是我發現這個庫問題不少，關鍵報錯了看不出來哪裡出問題了，著實令人蛋疼！！

問題

常見的難以解決的報錯有：
1. AttributeError: 'TBufferedTransport' object has no attribute 'trans'
2. TypeError: expecting list of size 2 for struct args
3. 見https://github.com/cloudera/impyla/issues/286

解決辦法

這實際上都是同一個問題，pip install thrift==0.9.3即可

python3時的報錯

如果你的python版本是3的話，會發現報錯可能不一樣，比如下面的：

Traceback (most recent call last):
  File "impala_py.py", line 68, in <module>
    df = run_sql(sql)
  File "impala_py.py", line 29, in run_sql
    conn = connect(host='xxx', auth_mechanism='PLAIN', port=21050, user='xxx', password='xxxx')
  File "/home/liming/anaconda2/envs/test3/lib/python3.6/site-packages/impala/dbapi.py"
 
, line 147, in connect
    auth_mechanism=auth_mechanism)
  File "/home/liming/anaconda2/envs/test3/lib/python3.6/site-packages/impala/hiveserver2.py", line 758, in connect
    transport.open()
  File "/home/liming/anaconda2/envs/test3/lib/python3.6/site-packages/thrift_sasl/__init__.py", line 67, in open
    if not self._trans.isOpen():
AttributeError: 'TSocket'
 
 object has no attribute 'isOpen'

目前嘗試可以的解決辦法是安裝如下版本的包：
thrift-sasl==0.2.1
只在linux嘗試成功了，windows下安裝失敗