今天我尝试更改支持 Cloud Composer 环境的集群的节点类型并切换到 Ubuntu 映像而不是 COS。我这样做是通过在 GKE 集群中添加第二个节点池，然后删除第一个并迁移所有工作负载.
这会在气流-sqlproxy 日志中产生以下错误：
couldn't connect to "XXXXX:europe-west1:XXXXX": ensure that the Cloud SQL API is enabled for your project (https://console.cloud.google.com/flows/enableapi?apiid=sqladmin). Error during createEphemeral for XXXXX:europe-west1:XXXXX: googleapi: Error 403: Insufficient Permission, insufficientPermissions
调度程序无法完全启动并发出以下堆栈跟踪：
Traceback (most recent call last):
File "/usr/local/bin/airflow", line 27, in <module>
args.func(args)
File "/usr/local/lib/python2.7/site-packages/airflow/bin/cli.py", line 826, in scheduler
job.run()
File "/usr/local/lib/python2.7/site-packages/airflow/jobs.py", line 192, in run
session.commit()
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 943, in commit
self.transaction.commit()
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 467, in commit
self._prepare_impl()
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 447, in _prepare_impl
self.session.flush()
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 2254, in flush
self._flush(objects)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 2380, in _flush
transaction.rollback(_capture_exception=True)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/util/langhelpers.py", line 66, in __exit__
compat.reraise(exc_type, exc_value, exc_tb)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 2344, in _flush
flush_context.execute()
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/unitofwork.py", line 391, in execute
rec.execute(self)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/unitofwork.py", line 556, in execute
uow
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/persistence.py", line 156, in save_obj
base_mapper, states, uowtransaction
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/persistence.py", line 286, in _organize_states_for_save(states):
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/persistence.py", line 1252, in _connections_for_states
connection = uowtransaction.transaction.connection(base_mapper)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 294, in connection
return self._connection_for_bind(bind, execution_options)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 398, in _connection_for_bind
conn = self._parent._connection_for_bind(bind, execution_options)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/orm/session.py", line 409, in _connection_for_bind
conn = bind.contextual_connect()
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 2123, in contextual_connect
self._wrap_pool_connect(self.pool.connect, None),
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 2162, in _wrap_pool_connect
e, dialect, self)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 1476, in _handle_dbapi_exception_noconnection
exc_info
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/util/compat.py", line 203, in raise_from_cause
reraise(type(exception), exception, tb=exc_tb, cause=cause)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/engine/base.py", line 2158, in _wrap_pool_connect
return fn()
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 403, in connect
return _ConnectionFairy._checkout(self)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 788, in _checkout
fairy = _ConnectionRecord.checkout(pool)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 532, in checkout
rec = pool._do_get()
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 1193, in _do_get
self._dec_overflow()
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/util/langhelpers.py", line 66, in __exit__
compat.reraise(exc_type, exc_value, exc_tb)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 1190, in _do_get
return self._create_connection()
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 350, in _create_connection
return _ConnectionRecord(self)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 477, in __init__
self.__connect(first_connect_check=True)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/pool.py", line 671, in __connect
connection = pool._invoke_creator(self)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/engine/strategies.py", line 106, in connect
return dialect.connect(*cargs, **cparams)
File "/usr/local/lib/python2.7/site-packages/sqlalchemy/engine/default.py", line 410, in connect
return self.dbapi.connect(*cargs, **cparams)
File "/usr/local/lib/python2.7/site-packages/MySQLdb/__init__.py", line 86, in Connect
return Connection(*args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/MySQLdb/connections.py", line 204, in __init__
super(Connection, self).__init__(*args, **kwargs2)
sqlalchemy.exc.OperationalError: (_mysql_exceptions.OperationalError) (2013, "Lost connection to MySQL server at 'reading initial communication packet', system error: 0") (Background on this error at: http://sqlalche.me/e/e3q8)
似乎与支持 SQL 数据库的连接现在已断开。它仍然是同一个集群，但节点不同。我必须更新任何其他配置吗？