Docker 当我尝试跑步时，DAG显示Ooops

我正在尝试运行DAG，但它显示以下错误。它工作了几个月，直到昨天。有人知道会发生什么吗？我正在发送下面的日志

我在Docker和Kubernetes一起工作

Kubectl版本：

Server Version: version.Info{Major:"1", Minor:"15", GitVersion:"v1.15.11", GitCommit:"d94a81c724ea8e1ccc9002d89b7fe81d58f89ede", GitTreeState:"clean", BuildDate:"2020-03-12T21:00:06Z", GoVersion:"go1.12.17", Compiler:"gc", Platform:"linux/amd64"}

日志：

节点：soma4-6f7b46b685-5rf7z
-------------------------------------------------------------------------------
回溯（最近一次呼叫最后一次）：
文件“/usr/local/lib/python3.6/site packages/sqlalchemy/engine/base.py”，第1224行，在执行上下文中
游标、语句、参数、上下文
do_ExecuteMy中的文件“/usr/local/lib/python3.6/site packages/sqlalchemy/engine/default.py”，第549行
cursor.executemany（语句、参数）
sqlite3.IntegrityError:非空约束失败：任务\实例.pool
上述异常是以下异常的直接原因：
回溯（最近一次呼叫最后一次）：
wsgi_应用程序中的文件“/usr/local/lib/python3.6/site packages/flask/app.py”，第2317行
response=self.full\u dispatch\u request（）
文件“/usr/local/lib/python3.6/site packages/flask/app.py”，第1840行，完整发送请求
rv=自身处理用户异常（e）
文件“/usr/local/lib/python3.6/site packages/flask/app.py”，第1743行，在handle\u user\u异常中
重放（exc_类型、exc_值、tb）
文件“/usr/local/lib/python3.6/site packages/flask/_compat.py”，第36行，重新登录
增值
文件“/usr/local/lib/python3.6/site packages/flask/app.py”，第1838行，完整发送请求
rv=自我分派请求（）
文件“/usr/local/lib/python3.6/site packages/flask/app.py”，第1824行，在调度请求中
返回self.view_函数[rule.endpoint]（**req.view_参数）
文件“/usr/local/lib/python3.6/site packages/flask_admin/base.py”，第69行，内部
返回自我。运行视图（f，*args，**kwargs）
文件“/usr/local/lib/python3.6/site packages/flask\u admin/base.py”，第368行，在运行视图中
返回fn（自身、*args、**kwargs）
文件“/usr/local/lib/python3.6/site packages/flask\u login/utils.py”，第258行，在视图中
返回函数（*args，**kwargs）
文件“/usr/local/lib/python3.6/site packages/afflow/www/utils.py”，第275行，在包装器中
返回f（*args，**kwargs）
文件“/usr/local/lib/python3.6/site packages/afflow/www/utils.py”，第322行，在包装器中
返回f（*args，**kwargs）
文件“/usr/local/lib/python3.6/site packages/afflow/utils/db.py”，第73行，在包装器中
返回函数（*args，**kwargs）
文件“/usr/local/lib/python3.6/site packages/afflow/www/views.py”，第1138行，在触发器中
外部触发=真
文件“/usr/local/lib/python3.6/site packages/afflow/utils/db.py”，第73行，在包装器中
返回函数（*args，**kwargs）
文件“/usr/local/lib/python3.6/site packages/afflow/models/________.py”，第2931行，在create_dagrun中
会话=会话）
文件“/usr/local/lib/python3.6/site packages/afflow/utils/db.py”，第69行，在包装器中
返回函数（*args，**kwargs）
文件“/usr/local/lib/python3.6/site packages/afflow/models/_______.py”，第4084行，在create_dagrun中
运行。验证_完整性（会话=会话）
文件“/usr/local/lib/python3.6/site packages/afflow/utils/db.py”，第69行，在包装器中
返回函数（*args，**kwargs）
文件“/usr/local/lib/python3.6/site packages/afflow/models/__init__.py”，第4922行，位于验证完整性中
session.commit（）
提交中的文件“/usr/local/lib/python3.6/site packages/sqlalchemy/orm/session.py”，第1026行
self.transaction.commit（）
提交中的文件“/usr/local/lib/python3.6/site packages/sqlalchemy/orm/session.py”，第493行
self.\u prepare\u impl（）
文件“/usr/local/lib/python3.6/site packages/sqlalchemy/orm/session.py”，第472行，在
self.session.flush（）
文件“/usr/local/lib/python3.6/site packages/sqlalchemy/orm/session.py”，第2451行，刷新
自冲洗（对象）
文件“/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/session.py”，第2589行，在
事务.rollback（\u capture\u exception=True）
文件“/usr/local/lib/python3.6/site packages/sqlalchemy/util/langhelpers.py”，第68行，在__
兼容性（exc_类型、exc_值、exc_tb）
文件“/usr/local/lib/python3.6/site packages/sqlalchemy/util/compat.py”，第129行，在reraise中
增值
文件“/usr/local/lib/python3.6/site packages/sqlalchemy/orm/session.py”，第2549行，在\u flush中
flush_context.execute（）
文件“/usr/local/lib/python3.6/site packages/sqlalchemy/orm/unitofwork.py”，执行中的第422行
rec.execute（self）
文件“/usr/local/lib/python3.6/site packages/sqlalchemy/orm/unitofwork.py”，执行中的第589行
uow，
save_obj中的文件“/usr/local/lib/python3.6/site packages/sqlalchemy/orm/persistence.py”，第245行
插入，
文件“/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/persistence.py”，第1066行，在发出插入语句中
c=缓存的连接[connection]。执行（语句，多内存）
文件“/usr/local/lib/python3.6/site packages/sqlalchemy/engine/base.py”，执行中的第988行
返回方法（自身、多线程、参数）
文件“/usr/local/lib/python3.6/site packages/sqlalchemy/sql/elements.py”，第287行，在连接上执行
返回连接。_execute_clauseelement（self、multiparams、params）
文件“/usr/local/lib/python3.6/site packages/sqlalchemy/engine/base.py”，第1107行，在执行条款元素中
你的参数，
文件“/usr/local/lib/python3.6/site packages/sqlalchemy/engine/base.py”，第1248行，在执行上下文中
e、 语句、参数、游标、上下文
文件“/usr/local/lib/python3.6/site packages/sqlalchemy/engine/base.py”，第1466行，在_handle_dbapi_exception中
util.raise\u from\u cause（sqlalchemy\u异常，exc\u信息）
文件“/usr/local/lib/python3.6/site-packages/sqlalchemy/util/compat.py”，第383行，从原因开始
重新释放（类型（异常），异常，tb=exc\U tb，原因=原因）
文件“/usr/local/lib/python3.6/site-packages/sqlalchemy/util/compat.py”，第128行，重新登录
通过回溯（tb）提高价值
Node: soma4-6f7b46b685-5rf7z
-------------------------------------------------------------------------------
Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1224, in _execute_context
    cursor, statement, parameters, context
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/default.py", line 549, in do_executemany
    cursor.executemany(statement, parameters)
sqlite3.IntegrityError: NOT NULL constraint failed: task_instance.pool

The above exception was the direct cause of the following exception:

Traceback (most recent call last):
  File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 2317, in wsgi_app
    response = self.full_dispatch_request()
  File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 1840, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 1743, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/usr/local/lib/python3.6/site-packages/flask/_compat.py", line 36, in reraise
    raise value
  File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 1838, in full_dispatch_request
    rv = self.dispatch_request()
  File "/usr/local/lib/python3.6/site-packages/flask/app.py", line 1824, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/usr/local/lib/python3.6/site-packages/flask_admin/base.py", line 69, in inner
    return self._run_view(f, *args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/flask_admin/base.py", line 368, in _run_view
    return fn(self, *args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/flask_login/utils.py", line 258, in decorated_view
    return func(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/airflow/www/utils.py", line 275, in wrapper
    return f(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/airflow/www/utils.py", line 322, in wrapper
    return f(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/airflow/utils/db.py", line 73, in wrapper
    return func(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/airflow/www/views.py", line 1138, in trigger
    external_trigger=True
  File "/usr/local/lib/python3.6/site-packages/airflow/utils/db.py", line 73, in wrapper
    return func(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/airflow/models/__init__.py", line 2931, in create_dagrun
    session=session)
  File "/usr/local/lib/python3.6/site-packages/airflow/utils/db.py", line 69, in wrapper
    return func(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/airflow/models/__init__.py", line 4084, in create_dagrun
    run.verify_integrity(session=session)
  File "/usr/local/lib/python3.6/site-packages/airflow/utils/db.py", line 69, in wrapper
    return func(*args, **kwargs)
  File "/usr/local/lib/python3.6/site-packages/airflow/models/__init__.py", line 4922, in verify_integrity
    session.commit()
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 1026, in commit
    self.transaction.commit()
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 493, in commit
    self._prepare_impl()
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 472, in _prepare_impl
    self.session.flush()
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 2451, in flush
    self._flush(objects)
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 2589, in _flush
    transaction.rollback(_capture_exception=True)
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/util/langhelpers.py", line 68, in __exit__
    compat.reraise(exc_type, exc_value, exc_tb)
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 129, in reraise
    raise value
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 2549, in _flush
    flush_context.execute()
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/unitofwork.py", line 422, in execute
    rec.execute(self)
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/unitofwork.py", line 589, in execute
    uow,
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/persistence.py", line 245, in save_obj
    insert,
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/orm/persistence.py", line 1066, in _emit_insert_statements
    c = cached_connections[connection].execute(statement, multiparams)
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 988, in execute
    return meth(self, multiparams, params)
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/sql/elements.py", line 287, in _execute_on_connection
    return connection._execute_clauseelement(self, multiparams, params)
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1107, in _execute_clauseelement
    distilled_params,
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1248, in _execute_context
    e, statement, parameters, cursor, context
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1466, in _handle_dbapi_exception
    util.raise_from_cause(sqlalchemy_exception, exc_info)
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 383, in raise_from_cause
    reraise(type(exception), exception, tb=exc_tb, cause=cause)
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 128, in reraise
    raise value.with_traceback(tb)
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1224, in _execute_context
    cursor, statement, parameters, context
  File "/usr/local/lib/python3.6/site-packages/sqlalchemy/engine/default.py", line 549, in do_executemany
    cursor.executemany(statement, parameters)
sqlalchemy.exc.IntegrityError: (sqlite3.IntegrityError) NOT NULL constraint failed: task_instance.pool
[SQL: INSERT INTO task_instance (task_id, dag_id, execution_date, start_date, end_date, duration, state, try_number, max_tries, hostname, unixname, job_id, pool, queue, priority_weight, operator, queued_dttm, pid, executor_config) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)]
[parameters: (('ingest_scada_alarms', 'soma_4_0_Modelo_Preditivo', '2020-10-08 12:37:10.604604', None, None, None, None, 0, 0, '', 'root', None, None, 'default', 40, None, None, None, <memory at 0x7fde8adda588>), ('ingest_sgm_master', 'soma_4_0_Modelo_Preditivo', '2020-10-08 12:37:10.604604', None, None, None, None, 0, 0, '', 'root', None, None, 'default', 39, None, None, None, <memory at 0x7fde8adda7c8>), ('ingest_sgm_register', 'soma_4_0_Modelo_Preditivo', '2020-10-08 12:37:10.604604', None, None, None, None, 0, 0, '', 'root', None, None, 'default', 33, None, None, None, <memory at 0x7fde8adda888>), ('ingest_sgm_maint', 'soma_4_0_Modelo_Preditivo', '2020-10-08 12:37:10.604604', None, None, None, None, 0, 0, '', 'root', None, None, 'default', 38, None, None, None, <memory at 0x7fde8adda948>), ('ingest_dw_failures', 'soma_4_0_Modelo_Preditivo', '2020-10-08 12:37:10.604604', None, None, None, None, 0, 0, '', 'root', None, None, 'default', 37, None, None, None, <memory at 0x7fde8addaa08>), ('ingest_dw_failures_short', 'soma_4_0_Modelo_Preditivo', '2020-10-08 12:37:10.604604', None, None, None, None, 0, 0, '', 'root', None, None, 'default', 36, None, None, None, <memory at 0x7fde8addaac8>), ('ingest_nc_lightning', 'soma_4_0_Modelo_Preditivo', '2020-10-08 12:37:10.604604', None, None, None, None, 0, 0, '', 'root', None, None, 'default', 35, None, None, None, <memory at 0x7fde8addab88>), ('ingest_im_metereo', 'soma_4_0_Modelo_Preditivo', '2020-10-08 12:37:10.604604', None, None, None, None, 0, 0, '', 'root', None, None, 'default', 34, None, None, None, <memory at 0x7fde8addac48>)  ... displaying 10 of 40 total bound parameter sets ...  ('call_update_ipdt', 'soma_4_0_Modelo_Preditivo', '2020-10-08 12:37:10.604604', None, None, None, None, 0, 0, '', 'root', None, None, 'default', 2, None, None, None, <memory at 0x7fde8aa7d408>), ('send_email', 'soma_4_0_Modelo_Preditivo', '2020-10-08 12:37:10.604604', None, None, None, None, 0, 0, '', 'root', None, None, 'default', 1, None, None, None, <memory at 0x7fde8aa7d4c8>))]
(Background on this error at: http://sqlalche.me/e/gkpj)