解决办法
只安装官方介绍的kylinpy
不要自行安装pykylin
superset连接kylin2.4 uri
成功：
kylin://ADMIN:[email protected]:7070/learn_kylin?prefix=/kylin/api&version=v1
失败
kylin://ADMIN:[email protected]:7070/learn_kylin?prefix=/kylin/api&version=v2
参考
http://kylin.apache.org/cn/docs21/tutorial/kylin_client_tool.html
Apache Kylin SQLAlchemy方言
任何一个使用SQLAlchemy的应用程序都可以通过此方言访问到Kylin, 您之前如果已经安装了kylinpy那么现在就已经集成好了SQLAlchemy Dialect. 请使用如下DSN模板访问Kylin
kylin://<username>:<password>@<hostname>:<port>/<project>?version=<v1|v2>&prefix=</kylin/api>穷举测试后成功
安装
请确保您python解释器版本在2.7+, 或者3.4+以上. 最方便安装Apache Kylin python客户端工具库的方法是使用pip命令pip install --upgrade kylinpy
注意，如果单独从github下载安装过pykylin的话要重新运行pip install --upgrade kylinpy，貌似github上pykylin比较杂。
Kylinpy命令行工具测试
-
访问Apache Kylin
kylinpy -h hostname -P 7070 -u ADMIN -p KYLIN --project learn_kylin --api1 --debug auth
如果已经安装了kylinpy那么现在就已经集成好了SQLAlchemy Dialect. 请使用如下DSN模板访问Kylin
sqlalchemy 连接kylin报错
sqlalchemy.exc.DBAPIError: (pykylin.errors.Error) Login failed with username: "ADMIN"
import sqlalchemy as sa
kylin_engine = sa.create_engine('kylin://ADMIN:[email protected]:7070/learn_kylin?version=v2&prefix=/kylin/api')
results = kylin_engine.execute('SELECT count(*) FROM KYLIN_SALES')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 2074, in execute
connection = self.contextual_connect(close_with_result=True)
File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 2123, in contextual_connect
self._wrap_pool_connect(self.pool.connect, None),
File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 2162, in _wrap_pool_connect
e, dialect, self)
File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 1476, in _handle_dbapi_exception_noconnection
exc_info
File "/usr/lib64/python2.7/site-packages/sqlalchemy/util/compat.py", line 265, in raise_from_cause
reraise(type(exception), exception, tb=exc_tb, cause=cause)
File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/base.py", line 2158, in _wrap_pool_connect
return fn()
File "/usr/lib64/python2.7/site-packages/sqlalchemy/pool.py", line 413, in connect
return _ConnectionFairy._checkout(self, self._threadconns)
File "/usr/lib64/python2.7/site-packages/sqlalchemy/pool.py", line 791, in _checkout
fairy = _ConnectionRecord.checkout(pool)
File "/usr/lib64/python2.7/site-packages/sqlalchemy/pool.py", line 532, in checkout
rec = pool._do_get()
File "/usr/lib64/python2.7/site-packages/sqlalchemy/pool.py", line 1099, in _do_get
c = self._create_connection()
File "/usr/lib64/python2.7/site-packages/sqlalchemy/pool.py", line 350, in _create_connection
return _ConnectionRecord(self)
File "/usr/lib64/python2.7/site-packages/sqlalchemy/pool.py", line 477, in __init__
self.__connect(first_connect_check=True)
File "/usr/lib64/python2.7/site-packages/sqlalchemy/pool.py", line 674, in __connect
connection = pool._invoke_creator(self)
File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/strategies.py", line 106, in connect
return dialect.connect(*cargs, **cparams)
File "/usr/lib64/python2.7/site-packages/sqlalchemy/engine/default.py", line 412, in connect
return self.dbapi.connect(*cargs, **cparams)
File "pykylin/connection.py", line 47, in connect
return Connection(username, password, endpoint, project, **kwargs)
File "pykylin/connection.py", line 17, in __init__
self.proxy.login(self.username, self.password)
File "pykylin/proxy.py", line 29, in login
raise Error('Login failed with username: "%s"' % self.user)
sqlalchemy.exc.DBAPIError: (pykylin.errors.Error) Login failed with username: "ADMIN" (Background on this error at: http://sqlalche.me/e/dbapi)版本
kylin.home: /opt/apache-kylin-2.4.0-bin-hbase1x
kylin.version:2.4.0.20500
commit:b450cc52f976ddafba7c6625d2440670af94332b;
os.name:Linux
os.arch:amd64
os.version:3.10.0-693.el7.x86_64
java.version:1.8.0_171
java.vendor:Oracle Corporation
最终连接成功
