几百块找大佬解决一个小问题

我使用开源 BI 工具 Superset 搭了一个业务看板，其它方面没得说，确实挺棒的

但就是有一个问题：在每次进入 Dashboard 的时候，会出现这样的报错：

需要刷新很多次才能好

完整报错代码如下：

   Traceback (most recent call last):
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 755, in _commit_impl
    self.engine.dialect.do_commit(self.connection)
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/sqlalchemy/engine/default.py", line 534, in do_commit
    dbapi_connection.commit()
sqlite3.OperationalError: database is locked

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

Traceback (most recent call last):
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/flask/app.py", line 2446, in wsgi_app
    response = self.full_dispatch_request()
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/flask/app.py", line 1951, in full_dispatch_request
    rv = self.handle_user_exception(e)
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/flask/app.py", line 1820, in handle_user_exception
    reraise(exc_type, exc_value, tb)
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/flask/_compat.py", line 39, in reraise
    raise value
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/flask/app.py", line 1949, in full_dispatch_request
    rv = self.dispatch_request()
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/flask/app.py", line 1935, in dispatch_request
    return self.view_functions[rule.endpoint](**req.view_args)
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/flask_appbuilder/security/decorators.py", line 109, in wraps
    return f(self, *args, **kwargs)
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/superset/views/core.py", line 1796, in dashboard
    edit_mode=edit_mode,
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/superset/utils/log.py", line 78, in wrapper
    referrer=referrer,
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/superset/utils/log.py", line 161, in log
    sesh.commit()
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/sqlalchemy/orm/scoping.py", line 162, in do
    return getattr(self.registry(), name)(*args, **kwargs)
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 1036, in commit
    self.transaction.commit()
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/sqlalchemy/orm/session.py", line 507, in commit
    t[1].commit()
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1727, in commit
    self._do_commit()
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1758, in _do_commit
    self.connection._commit_impl()
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 757, in _commit_impl
    self._handle_dbapi_exception(e, None, None, None, None)
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 1476, in _handle_dbapi_exception
    util.raise_from_cause(sqlalchemy_exception, exc_info)
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 398, in raise_from_cause
    reraise(type(exception), exception, tb=exc_tb, cause=cause)
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/sqlalchemy/util/compat.py", line 152, in reraise
    raise value.with_traceback(tb)
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/sqlalchemy/engine/base.py", line 755, in _commit_impl
    self.engine.dialect.do_commit(self.connection)
  File "/root/.pyenv/versions/3.6.5/envs/venv-3.6.5/lib/python3.6/site-packages/sqlalchemy/engine/default.py", line 534, in do_commit
    dbapi_connection.commit()
sqlalchemy.exc.OperationalError: (sqlite3.OperationalError) database is locked
(Background on this error at: http://sqlalche.me/e/e3q8)

初步判断是 sqlite3 的问题，在读数据库的时候遇到锁了，但是咱 python 太菜了，不知道有什么好的方法可以改一下（例如增加等待时间啥的）

因此希望求助各位大佬，能解决的给一个大红包，拜谢了