Recently I have upgraded airflow to the newer available version 2.2.1 and getting weird error of using airflow by many users.
After refreshing 2-3 times, I can see webserver UI page but it is breaking in every first action.
I have used LocalExecutor for this. All configuration are same which I am using for production from last one year.
There are two differences in this installation:
- Installed using python pip commond instead of standard setup and run as a service.
- Different (upgraded) version - 2.2.1
Something bad has happened.
Airflow is used by many users, and it is very likely that others had similar problems and you can easily find
a solution to your problem.
Consider following these steps:
* gather the relevant information (detailed logs with errors, reproduction steps, details of your deployment)
* find similar issues using:
* GitHub Discussions
* GitHub Issues
* Stack Overflow
* the usual search engine you use on a daily basis
* if you run Airflow on a Managed Service, consider opening an issue using the service support channels
* if you tried and have difficulty with diagnosing and fixing the problem yourself, consider creating a bug report.
Make sure however, to include all relevant details and results of your investigation so far.
Python version: 3.7.10
Airflow version: 2.2.1
Node: ip-1-2-3-4-my-ip-here
-------------------------------------------------------------------------------
Traceback (most recent call last):
File "/home/hadoop/.local/lib/python3.7/site-packages/flask/app.py", line 2447, in wsgi_app
response = self.full_dispatch_request()
File "/home/hadoop/.local/lib/python3.7/site-packages/flask/app.py", line 1952, in full_dispatch_request
rv = self.handle_user_exception(e)
File "/home/hadoop/.local/lib/python3.7/site-packages/flask/app.py", line 1821, in handle_user_exception
reraise(exc_type, exc_value, tb)
File "/home/hadoop/.local/lib/python3.7/site-packages/flask/_compat.py", line 39, in reraise
raise value
File "/home/hadoop/.local/lib/python3.7/site-packages/flask/app.py", line 1950, in full_dispatch_request
rv = self.dispatch_request()
File "/home/hadoop/.local/lib/python3.7/site-packages/flask/app.py", line 1936, in dispatch_request
return self.view_functions[rule.endpoint](**req.view_args)
File "/home/hadoop/.local/lib/python3.7/site-packages/airflow/www/auth.py", line 51, in decorated
return func(*args, **kwargs)
File "/home/hadoop/.local/lib/python3.7/site-packages/airflow/www/decorators.py", line 109, in view_func
return f(*args, **kwargs)
File "/home/hadoop/.local/lib/python3.7/site-packages/airflow/www/decorators.py", line 72, in wrapper
return f(*args, **kwargs)
File "/home/hadoop/.local/lib/python3.7/site-packages/airflow/utils/session.py", line 70, in wrapper
return func(*args, session=session, **kwargs)
File "/home/hadoop/.local/lib/python3.7/site-packages/airflow/www/views.py", line 2316, in tree
data = self._get_tree_data(dag_runs, dag, base_date, session=session)
File "/home/hadoop/.local/lib/python3.7/site-packages/airflow/www/views.py", line 2173, in _get_tree_data
for ti in dag.get_task_instances(start_date=min_date, end_date=base_date, session=session)
File "/home/hadoop/.local/lib/python3.7/site-packages/airflow/utils/session.py", line 67, in wrapper
return func(*args, **kwargs)
File "/home/hadoop/.local/lib/python3.7/site-packages/airflow/models/dag.py", line 1339, in get_task_instances
.join(TaskInstance.dag_run)
File "/home/hadoop/.local/lib/python3.7/site-packages/sqlalchemy/orm/query.py", line 2396, in join
from_joinpoint=from_joinpoint,
File "<string>", line 2, in _join
File "/home/hadoop/.local/lib/python3.7/site-packages/sqlalchemy/orm/base.py", line 227, in generate
fn(self, *args[1:], **kw)
File "/home/hadoop/.local/lib/python3.7/site-packages/sqlalchemy/orm/query.py", line 2577, in _join
"been joined to; skipping" % prop
File "/home/hadoop/.local/lib/python3.7/site-packages/sqlalchemy/util/langhelpers.py", line 1380, in warn
warnings.warn(msg, exc.SAWarning, stacklevel=2)
File "/usr/lib64/python3.7/warnings.py", line 110, in _showwarnmsg
msg.file, msg.line)
File "/home/hadoop/.local/lib/python3.7/site-packages/airflow/settings.py", line 116, in custom_show_warning
write_console.print(msg, soft_wrap=True)
File "/home/hadoop/.local/lib/python3.7/site-packages/rich/console.py", line 1615, in print
self._buffer.extend(new_segments)
File "/home/hadoop/.local/lib/python3.7/site-packages/rich/console.py", line 825, in __exit__
self._exit_buffer()
File "/home/hadoop/.local/lib/python3.7/site-packages/rich/console.py", line 784, in _exit_buffer
self._check_buffer()
File "/home/hadoop/.local/lib/python3.7/site-packages/rich/console.py", line 1872, in _check_buffer
self.file.write(text)
OSError: [Errno 5] Input/output error
