Konstantin Privezentsev created AIRFLOW-1706:
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Summary: Scheduler is failed on startup with MS SQL Server as
backend
Key: AIRFLOW-1706
URL: https://issues.apache.org/jira/browse/AIRFLOW-1706
Project: Apache Airflow
Issue Type: Bug
Components: scheduler
Affects Versions: 1.9.0
Reporter: Konstantin Privezentsev
Priority: Minor
Attachments: 0001-fix-query-error-for-mssql-backend.patch
Actual for commit - 21e94c7d1594c5e0
Scheduler log:
{noformat}
airflow_scheduler_1 | [2017-10-12 08:45:49,554] {{jobs.py:1497}} INFO -
Starting the scheduler
airflow_scheduler_1 | [2017-10-12 08:45:49,554] {{jobs.py:1510}} INFO -
Processing files using up to 2 processes at a time
airflow_scheduler_1 | [2017-10-12 08:45:49,554] {{jobs.py:1511}} INFO -
Running execute loop for -1 seconds
airflow_scheduler_1 | [2017-10-12 08:45:49,554] {{jobs.py:1512}} INFO -
Processing each file at most -1 times
airflow_scheduler_1 | [2017-10-12 08:45:49,555] {{jobs.py:1513}} INFO -
Process each file at most once every 0 seconds
airflow_scheduler_1 | [2017-10-12 08:45:49,555] {{jobs.py:1514}} INFO -
Checking for new files in /opt/airflow/dags every 300 seconds
airflow_scheduler_1 | [2017-10-12 08:45:49,555] {{jobs.py:1517}} INFO -
Searching for files in /opt/airflow/dags
airflow_scheduler_1 | [2017-10-12 08:45:49,555] {{jobs.py:1519}} INFO - There
are 1 files in /opt/airflow/dags
airflow_scheduler_1 | [2017-10-12 08:45:49,628] {{jobs.py:1580}} INFO -
Resetting orphaned tasks for active dag runs
airflow_scheduler_1 | [2017-10-12 08:45:49,634] {{jobs.py:1538}} INFO - Exited
execute loop
airflow_scheduler_1 | Traceback (most recent call last):
airflow_scheduler_1 | File "/usr/local/bin/airflow", line 27, in <module>
airflow_scheduler_1 | args.func(args)
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/airflow/bin/cli.py", line 828, in
scheduler
airflow_scheduler_1 | job.run()
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/airflow/jobs.py", line 197, in run
airflow_scheduler_1 | self._execute()
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/airflow/jobs.py", line 1536, in _execute
airflow_scheduler_1 | self._execute_helper(processor_manager)
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/airflow/jobs.py", line 1581, in
_execute_helper
airflow_scheduler_1 | self.reset_state_for_orphaned_tasks(session=session)
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/airflow/utils/db.py", line 50, in
wrapper
airflow_scheduler_1 | result = func(*args, **kwargs)
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/airflow/jobs.py", line 246, in
reset_state_for_orphaned_tasks
airflow_scheduler_1 | TI.state.in_(resettable_states))).all()
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 2703, in
all
airflow_scheduler_1 | return list(self)
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 2855, in
__iter__
airflow_scheduler_1 | return self._execute_and_instances(context)
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/query.py", line 2878, in
_execute_and_instances
airflow_scheduler_1 | result = conn.execute(querycontext.statement,
self._params)
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 945,
in execute
airflow_scheduler_1 | return meth(self, multiparams, params)
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/sql/elements.py", line 263,
in _execute_on_connection
airflow_scheduler_1 | return connection._execute_clauseelement(self,
multiparams, params)
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1053,
in _execute_clauseelement
airflow_scheduler_1 | compiled_sql, distilled_params
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1189,
in _execute_context
airflow_scheduler_1 | context)
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1402,
in _handle_dbapi_exception
airflow_scheduler_1 | exc_info
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/util/compat.py", line 203,
in raise_from_cause
airflow_scheduler_1 | reraise(type(exception), exception, tb=exc_tb,
cause=cause)
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/base.py", line 1182,
in _execute_context
airflow_scheduler_1 | context)
airflow_scheduler_1 | File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/engine/default.py", line
470, in do_execute
airflow_scheduler_1 | cursor.execute(statement, parameters)
airflow_scheduler_1 | sqlalchemy.exc.ProgrammingError:
(pyodbc.ProgrammingError) ('42000', "[42000] [Microsoft][ODBC Driver 13 for SQL
Server][SQL Server]Incorrect syntax near '0'. (102) (SQLExecDirectW)") [SQL:
u'SELECT task_instance.task_id AS task_instance_task_id, task_instance.dag_id
AS task_instance_dag_id, task_instance.execution_date AS
task_instance_execution_date, task_instance.start_date AS
task_instance_start_date, task_instance.end_date AS task_instance_end_date,
task_instance.duration AS task_instance_duration, task_instance.state AS
task_instance_state, task_instance.try_number AS task_instance_try_number,
task_instance.max_tries AS task_instance_max_tries, task_instance.hostname AS
task_instance_hostname, task_instance.unixname AS task_instance_unixname,
task_instance.job_id AS task_instance_job_id, task_instance.pool AS
task_instance_pool, task_instance.queue AS task_instance_queue,
task_instance.priority_weight AS task_instance_priority_weight,
task_instance.operator AS task_instance_operator, task_instance.queued_dttm AS
task_instance_queued_dttm, task_instance.pid AS task_instance_pid \nFROM
task_instance JOIN dag_run ON task_instance.dag_id = dag_run.dag_id AND
task_instance.execution_date = dag_run.execution_date \nWHERE dag_run.state = ?
AND dag_run.external_trigger IS 0 AND dag_run.run_id NOT LIKE ? AND
task_instance.state IN (?, ?)'] [parameters: (u'running', u'backfill_%',
u'scheduled', u'queued')]
{noformat}
Patch in attachment
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