stablum edited a comment on issue #19957:
URL: https://github.com/apache/airflow/issues/19957#issuecomment-1079965417
Unfortunately I'm still experiencing this bug with Airflow 2.2.4:
```
[2022-03-27 16:14:12,804] {scheduler_job.py:433} INFO - Setting the
following tasks to queued state:
[2022-03-27 16:14:12,805] {scheduler_job.py:527} INFO - Executor reports
execution of download_and_preprocess_sets.download_1544
run_id=manual__2022-03-24T13:43:29.617461+00:00 exited with status success for
try_number 2
[2022-03-27 16:14:12,809] {scheduler_job.py:570} INFO - TaskInstance
Finished: dag_id=download_and_preprocess_sets, task_id=download_1544,
run_id=manual__2022-03-24T13:43:29.617461+00:00, run_start_date=2022-03-27
16:13:00.591762+00:00, run_end_date=2022-03-27 16:13:37.437128+00:00,
run_duration=36.845366, state=success, executor_state=success, try_number=2,
max_tries=2, job_id=10383, pool=default_pool, queue=default,
priority_weight=59, operator=PythonOperator
[2022-03-27 16:14:12,829] {scheduler_job.py:1137} INFO - Resetting orphaned
tasks for active dag runs
[2022-03-27 16:14:12,830] {scheduler_job.py:1160} INFO - Marked 1
SchedulerJob instances as failed
[2022-03-27 16:14:12,835] {scheduler_job.py:1201} INFO - Reset the following
1 orphaned TaskInstances:
<TaskInstance: download_and_preprocess_sets.download_1546
manual__2022-03-24T13:43:29.617461+00:00 [running]>
[2022-03-27 16:14:45,853] {scheduler_job.py:667} ERROR - Exception when
executing SchedulerJob._run_scheduler_loop
Traceback (most recent call last):
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/base.py",
line 1276, in _execute_context
self.dialect.do_execute(
File
"/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/default.py", line
608, in do_execute
cursor.execute(statement, parameters)
psycopg2.errors.DeadlockDetected: deadlock detected
DETAIL: Process 309686 waits for ShareLock on transaction 12660839; blocked
by process 314699.
Process 314699 waits for ShareLock on transaction 12660838; blocked by
process 309686.
HINT: See server log for query details.
CONTEXT: while updating tuple (4928,21) in relation "task_instance"
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File
"/usr/local/lib/python3.9/dist-packages/airflow/jobs/scheduler_job.py", line
651, in _execute
self._run_scheduler_loop()
File
"/usr/local/lib/python3.9/dist-packages/airflow/jobs/scheduler_job.py", line
732, in _run_scheduler_loop
num_queued_tis = self._do_scheduling(session)
File
"/usr/local/lib/python3.9/dist-packages/airflow/jobs/scheduler_job.py", line
815, in _do_scheduling
callback_to_run = self._schedule_dag_run(dag_run, session)
File
"/usr/local/lib/python3.9/dist-packages/airflow/jobs/scheduler_job.py", line
1072, in _schedule_dag_run
dag_run.schedule_tis(schedulable_tis, session)
File "/usr/local/lib/python3.9/dist-packages/airflow/utils/session.py",
line 67, in wrapper
return func(*args, **kwargs)
File "/usr/local/lib/python3.9/dist-packages/airflow/models/dagrun.py",
line 901, in schedule_tis
session.query(TI)
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/orm/query.py",
line 4063, in update
update_op.exec_()
File
"/usr/local/lib/python3.9/dist-packages/sqlalchemy/orm/persistence.py", line
1697, in exec_
self._do_exec()
File
"/usr/local/lib/python3.9/dist-packages/sqlalchemy/orm/persistence.py", line
1895, in _do_exec
self._execute_stmt(update_stmt)
File
"/usr/local/lib/python3.9/dist-packages/sqlalchemy/orm/persistence.py", line
1702, in _execute_stmt
self.result = self.query._execute_crud(stmt, self.mapper)
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/orm/query.py",
line 3568, in _execute_crud
return conn.execute(stmt, self._params)
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/base.py",
line 1011, in execute
return meth(self, multiparams, params)
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/sql/elements.py",
line 298, in _execute_on_connection
return connection._execute_clauseelement(self, multiparams, params)
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/base.py",
line 1124, in _execute_clauseelement
ret = self._execute_context(
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/base.py",
line 1316, in _execute_context
self._handle_dbapi_exception(
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/base.py",
line 1510, in _handle_dbapi_exception
util.raise_(
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/util/compat.py",
line 182, in raise_
raise exception
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/base.py",
line 1276, in _execute_context
self.dialect.do_execute(
File
"/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/default.py", line
608, in do_execute
cursor.execute(statement, parameters)
sqlalchemy.exc.OperationalError: (psycopg2.errors.DeadlockDetected) deadlock
detected
DETAIL: Process 309686 waits for ShareLock on transaction 12660839; blocked
by process 314699.
Process 314699 waits for ShareLock on transaction 12660838; blocked by
process 309686.
HINT: See server log for query details.
CONTEXT: while updating tuple (4928,21) in relation "task_instance"
[SQL: UPDATE task_instance SET state=%(state)s WHERE task_instance.dag_id =
%(dag_id_1)s AND task_instance.run_id = %(run_id_1)s AND task_instance.task_id
IN (%(task_id_1)s)]
[parameters: {'state': <TaskInstanceState.SCHEDULED: 'scheduled'>,
'dag_id_1': 'download_and_preprocess_sets', 'run_id_1':
'manual__2022-03-24T13:43:29.617461+00:00', 'task_id_1': 'download_1546'}]
(Background on this error at: http://sqlalche.me/e/13/e3q8)
[2022-03-27 16:14:45,858] {local_executor.py:388} INFO - Shutting down
LocalExecutor; waiting for running tasks to finish. Signal again if you don't
want to wait.
[2022-03-27 16:14:46,970] {process_utils.py:120} INFO - Sending
Signals.SIGTERM to group 309683. PIDs of all processes in the group: [309683]
[2022-03-27 16:14:46,970] {process_utils.py:75} INFO - Sending the signal
Signals.SIGTERM to group 309683
[2022-03-27 16:14:47,022] {process_utils.py:70} INFO - Process
psutil.Process(pid=309683, status='terminated', exitcode=0, started='16:08:59')
(309683) terminated with exit code 0
[2022-03-27 16:14:47,022] {scheduler_job.py:678} INFO - Exited execute loop
Traceback (most recent call last):
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/base.py",
line 1276, in _execute_context
self.dialect.do_execute(
File
"/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/default.py", line
608, in do_execute
cursor.execute(statement, parameters)
psycopg2.errors.DeadlockDetected: deadlock detected
DETAIL: Process 309686 waits for ShareLock on transaction 12660839; blocked
by process 314699.
Process 314699 waits for ShareLock on transaction 12660838; blocked by
process 309686.
HINT: See server log for query details.
CONTEXT: while updating tuple (4928,21) in relation "task_instance"
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "/usr/local/bin/airflow", line 8, in <module>
sys.exit(main())
File "/usr/local/lib/python3.9/dist-packages/airflow/__main__.py", line
48, in main
args.func(args)
File "/usr/local/lib/python3.9/dist-packages/airflow/cli/cli_parser.py",
line 48, in command
return func(*args, **kwargs)
File "/usr/local/lib/python3.9/dist-packages/airflow/utils/cli.py", line
92, in wrapper
return f(*args, **kwargs)
File
"/usr/local/lib/python3.9/dist-packages/airflow/cli/commands/scheduler_command.py",
line 75, in scheduler
_run_scheduler_job(args=args)
File
"/usr/local/lib/python3.9/dist-packages/airflow/cli/commands/scheduler_command.py",
line 46, in _run_scheduler_job
job.run()
File "/usr/local/lib/python3.9/dist-packages/airflow/jobs/base_job.py",
line 246, in run
self._execute()
File
"/usr/local/lib/python3.9/dist-packages/airflow/jobs/scheduler_job.py", line
651, in _execute
self._run_scheduler_loop()
File
"/usr/local/lib/python3.9/dist-packages/airflow/jobs/scheduler_job.py", line
732, in _run_scheduler_loop
num_queued_tis = self._do_scheduling(session)
File
"/usr/local/lib/python3.9/dist-packages/airflow/jobs/scheduler_job.py", line
815, in _do_scheduling
callback_to_run = self._schedule_dag_run(dag_run, session)
File
"/usr/local/lib/python3.9/dist-packages/airflow/jobs/scheduler_job.py", line
1072, in _schedule_dag_run
dag_run.schedule_tis(schedulable_tis, session)
File "/usr/local/lib/python3.9/dist-packages/airflow/utils/session.py",
line 67, in wrapper
return func(*args, **kwargs)
File "/usr/local/lib/python3.9/dist-packages/airflow/models/dagrun.py",
line 901, in schedule_tis
session.query(TI)
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/orm/query.py",
line 4063, in update
update_op.exec_()
File
"/usr/local/lib/python3.9/dist-packages/sqlalchemy/orm/persistence.py", line
1697, in exec_
self._do_exec()
File
"/usr/local/lib/python3.9/dist-packages/sqlalchemy/orm/persistence.py", line
1895, in _do_exec
self._execute_stmt(update_stmt)
File
"/usr/local/lib/python3.9/dist-packages/sqlalchemy/orm/persistence.py", line
1702, in _execute_stmt
self.result = self.query._execute_crud(stmt, self.mapper)
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/orm/query.py",
line 3568, in _execute_crud
return conn.execute(stmt, self._params)
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/base.py",
line 1011, in execute
return meth(self, multiparams, params)
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/sql/elements.py",
line 298, in _execute_on_connection
return connection._execute_clauseelement(self, multiparams, params)
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/base.py",
line 1124, in _execute_clauseelement
ret = self._execute_context(
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/base.py",
line 1316, in _execute_context
self._handle_dbapi_exception(
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/base.py",
line 1510, in _handle_dbapi_exception
util.raise_(
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/util/compat.py",
line 182, in raise_
raise exception
File "/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/base.py",
line 1276, in _execute_context
self.dialect.do_execute(
File
"/usr/local/lib/python3.9/dist-packages/sqlalchemy/engine/default.py", line
608, in do_execute
cursor.execute(statement, parameters)
sqlalchemy.exc.OperationalError: (psycopg2.errors.DeadlockDetected) deadlock
detected
DETAIL: Process 309686 waits for ShareLock on transaction 12660839; blocked
by process 314699.
Process 314699 waits for ShareLock on transaction 12660838; blocked by
process 309686.
HINT: See server log for query details.
CONTEXT: while updating tuple (4928,21) in relation "task_instance"
[SQL: UPDATE task_instance SET state=%(state)s WHERE task_instance.dag_id =
%(dag_id_1)s AND task_instance.run_id = %(run_id_1)s AND task_instance.task_id
IN (%(task_id_1)s)]
[parameters: {'state': <TaskInstanceState.SCHEDULED: 'scheduled'>,
'dag_id_1': 'download_and_preprocess_sets', 'run_id_1':
'manual__2022-03-24T13:43:29.617461+00:00', 'task_id_1': 'download_1546'}]
(Background on this error at: http://sqlalche.me/e/13/e3q8)
```
I also set `concurrency=1` and `max_active_tasks=1`, but the bug keep
reappearing
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: [email protected]
For queries about this service, please contact Infrastructure at:
[email protected]
