Question

我正在尝试将df插入带有分区的ibis创建的impala表中。我在Windows 10机器上使用spyder 3.2.4和运行CentOS的边缘节点机器上使用python 3.6.2在远程内核上运行它。

我收到以下错误：

Writing DataFrame to temporary file
Writing CSV to: /tmp/ibis/pandas_0032f9dd1916426da62c8b4d8f4dfb92/0.csv
Traceback (most recent call last):

File "/usr/local/lib/python3.6/site-packages/IPython/core/interactiveshell.py", line 2910, in run_code
exec(code_obj, self.user_global_ns, self.user_ns)

File "", line 1, in 
insert = target_table.insert(df3)

File "/usr/local/lib/python3.6/site-packages/ibis/impala/client.py", line 1674, in insert
writer, expr = write_temp_dataframe(self._client, obj)

File "/usr/local/lib/python3.6/site-packages/ibis/impala/pandas_interop.py", line 225, in write_temp_dataframe
return writer, writer.delimited_table(path)

File "/usr/local/lib/python3.6/site-packages/ibis/impala/pandas_interop.py", line 188, in delimited_table
schema = self.get_schema()

File "/usr/local/lib/python3.6/site-packages/ibis/impala/pandas_interop.py", line 184, in get_schema
return pandas_to_ibis_schema(self.df)

File "/usr/local/lib/python3.6/site-packages/ibis/impala/pandas_interop.py", line 219, in pandas_to_ibis_schema
return schema(pairs)

File "/usr/local/lib/python3.6/site-packages/ibis/expr/api.py", line 105, in schema
return Schema.from_tuples(pairs)

File "/usr/local/lib/python3.6/site-packages/ibis/expr/datatypes.py", line 109, in from_tuples
return Schema(names, types)

File "/usr/local/lib/python3.6/site-packages/ibis/expr/datatypes.py", line 55, in init
self.types = [validate_type(typ) for typ in types]

File "/usr/local/lib/python3.6/site-packages/ibis/expr/datatypes.py", line 55, in 
self.types = [validate_type(typ) for typ in types]

File "/usr/local/lib/python3.6/site-packages/ibis/expr/datatypes.py", line 1040, in validate_type
return TypeParser(t).parse()

File "/usr/local/lib/python3.6/site-packages/ibis/expr/datatypes.py", line 901, in parse
t = self.type()

File "/usr/local/lib/python3.6/site-packages/ibis/expr/datatypes.py", line 1033, in type
raise SyntaxError('Type cannot be parsed: {}'.format(self.text))

File "", line unknown
SyntaxError: Type cannot be parsed: integer

Answer 1

由于hadoop系统的结构和安全性而出现错误。宜家包尝试创建temp_db＆amp; __ibis_tmp＆amp;中的temp_hdfs_location / tmp / ibis /分别。由于在我们的系统中，默认位置不对除root / system admin之外的任何用户开放...当从/ tmp / ibis /获取数据到实际数据库时，插入命令错误输出（仍然不清楚，但可能是通过__ibis_tmp dbase）。一旦我们将ibis包的config_init.py文件编辑到允许的临时位置/ db。它就像一个魅力。

Answer 2

而不是编辑提到的config_init.py

https://stackoverflow.com/a/47543691/5485370

使用ibis.options分配临时数据库和路径更加容易：

ibis.options.impala.temp_db = 'your_temp_db'
ibis.options.impala.temp_hdfs_path = 'your_temp_hdfs_path'

使用Ibis python将数据插入impala表

2 个答案: