[
https://issues.apache.org/jira/browse/AIRFLOW-1347?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Antoine Grouazel updated AIRFLOW-1347:
--------------------------------------
Description:
*Description of the issue*: the scheduler cannot update the mysql db via
SqlAlchemy and the tasks are queued and not rescheduled. It affects all our
DAGs but not all the tasks nor all the time. Manually clear a task having such
issue can fix the problem for the given task instance.
There is a kind of random behavior...
Upgrading mysql 5.7.17 to 5.7.18 does not fix the issue. (x)
Issue is neitheir fixed in the lastest version 1.8.2rc1 . (x)
Don't know if there is a link with
https://issues.apache.org/jira/browse/AIRFLOW-977. (?)
{quote}
{{[2017-06-24 00:31:10,272] {models.py:167} INFO - Filling up the DagBag from
/home3/homedir7/perso/satwave/airflow/dags/sentinel1_copernicus_download.py
[2017-06-24 00:31:10,427] {base_task_runner.py:112} INFO - Running: ['bash',
'-c', u'airflow run Sentinel1_copernicus_download latest_only
2017-06-23T00:31:00 --job_id 293 --raw -sd
DAGS_FOLDER/sentinel1_copernicus_download.py']
[2017-06-24 00:31:11,449] {base_task_runner.py:95} INFO - Subtask: [2017-06-24
00:31:11,449] {__init__.py:57} INFO - Using executor CeleryExecutor
[2017-06-24 00:31:11,668] {base_task_runner.py:95} INFO - Subtask: [2017-06-24
00:31:11,668] {driver.py:120} INFO - Generating grammar tables from
/usr/lib/python2.7/lib2to3/Grammar.txt
[2017-06-24 00:31:11,724] {base_task_runner.py:95} INFO - Subtask: [2017-06-24
00:31:11,723] {driver.py:120} INFO - Generating grammar tables from
/usr/lib/python2.7/lib2to3/PatternGrammar.txt
[2017-06-24 00:31:12,067] {base_task_runner.py:95} INFO - Subtask: [2017-06-24
00:31:12,066] {models.py:167} INFO - Filling up the DagBag from
/home3/homedir7/perso/satwave/airflow/dags/sentinel1_copernicus_download.py
[2017-06-24 00:31:12,184] {base_task_runner.py:95} INFO - Subtask: [2017-06-24
00:31:12,184] {models.py:1126} INFO - Dependencies all met for <TaskInstance:
Sentinel1_copernicus_download.latest_only 2017-06-23 00:31:00 [queued]>
[2017-06-24 00:31:12,188] {base_task_runner.py:95} INFO - Subtask: [2017-06-24
00:31:12,188] {models.py:1126} INFO - Dependencies all met for <TaskInstance:
Sentinel1_copernicus_download.latest_only 2017-06-23 00:31:00 [queued]>
[2017-06-24 00:31:12,188] {base_task_runner.py:95} INFO - Subtask: [2017-06-24
00:31:12,188] {models.py:1318} INFO -
[2017-06-24 00:31:12,188] {base_task_runner.py:95} INFO - Subtask:
--------------------------------------------------------------------------------
[2017-06-24 00:31:12,188] {base_task_runner.py:95} INFO - Subtask: Starting
attempt 1 of 3
[2017-06-24 00:31:12,189] {base_task_runner.py:95} INFO - Subtask:
--------------------------------------------------------------------------------
[2017-06-24 00:31:12,189] {base_task_runner.py:95} INFO - Subtask:
[2017-06-24 00:31:12,228] {base_task_runner.py:95} INFO - Subtask: Traceback
(most recent call last):
[2017-06-24 00:31:12,228] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/bin/airflow", line 28, in <module>
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
args.func(args)
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/airflow/bin/cli.py", line 422, in run
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
pool=args.pool,
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/airflow/utils/db.py", line 53, in
wrapper
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: result =
func(*args, **kwargs)
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/airflow/models.py", line 1328, in run
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
session.commit()
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 801,
in commit
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
self.transaction.commit()
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 392,
in commit
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
self._prepare_impl()
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 372,
in _prepare_impl
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask:
self.session.flush()
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 2019,
in flush
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask:
self._flush(objects)
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 2137,
in _flush
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask:
transaction.rollback(_capture_exception=True)
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/util/langhelpers.py", line
60, in __exit__
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask:
compat.reraise(exc_type, exc_value, exc_tb)
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 2101,
in _flush
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask:
flush_context.execute()
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/unitofwork.py", line
373, in execute
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask:
rec.execute(self)
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/unitofwork.py", line
532, in execute
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: uow
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/persistence.py", line
170, in save_obj
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: mapper,
table, update)
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/persistence.py", line
634, in _emit_update_statements
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: lambda
rec: (
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/persistence.py", line
531, in _collect_update_commands
[2017-06-24 00:31:12,232] {base_task_runner.py:95} INFO - Subtask: "key
value on column %s" % (table, col))
[2017-06-24 00:31:12,232] {base_task_runner.py:95} INFO - Subtask:
sqlalchemy.orm.exc.FlushError: Can't update table task_instance using NULL for
primary key value on column task_instance.execution_date
[2017-06-24 00:31:12,311] {jobs.py:2083} INFO - Task exited with return code
1}}{quote}
was:
*Description of the issue*: the scheduler cannot update the mysql db via
SqlAlchemy and the tasks are queued and not rescheduled. It affects all our
DAGs but not all the tasks nor all the time. Manually clear a task having such
issue can fix the problem for the given task instance.
There is a kind of random behavior...
Upgrading mysql 5.7.17 to 5.7.18 does not fix the issue.
Issue is neitheir fixed in the lastest version 1.8.2rc1 .
Don't know if there is a link with
https://issues.apache.org/jira/browse/AIRFLOW-977.
{quote}
{{[2017-06-24 00:31:10,272] {models.py:167} INFO - Filling up the DagBag from
/home3/homedir7/perso/satwave/airflow/dags/sentinel1_copernicus_download.py
[2017-06-24 00:31:10,427] {base_task_runner.py:112} INFO - Running: ['bash',
'-c', u'airflow run Sentinel1_copernicus_download latest_only
2017-06-23T00:31:00 --job_id 293 --raw -sd
DAGS_FOLDER/sentinel1_copernicus_download.py']
[2017-06-24 00:31:11,449] {base_task_runner.py:95} INFO - Subtask: [2017-06-24
00:31:11,449] {__init__.py:57} INFO - Using executor CeleryExecutor
[2017-06-24 00:31:11,668] {base_task_runner.py:95} INFO - Subtask: [2017-06-24
00:31:11,668] {driver.py:120} INFO - Generating grammar tables from
/usr/lib/python2.7/lib2to3/Grammar.txt
[2017-06-24 00:31:11,724] {base_task_runner.py:95} INFO - Subtask: [2017-06-24
00:31:11,723] {driver.py:120} INFO - Generating grammar tables from
/usr/lib/python2.7/lib2to3/PatternGrammar.txt
[2017-06-24 00:31:12,067] {base_task_runner.py:95} INFO - Subtask: [2017-06-24
00:31:12,066] {models.py:167} INFO - Filling up the DagBag from
/home3/homedir7/perso/satwave/airflow/dags/sentinel1_copernicus_download.py
[2017-06-24 00:31:12,184] {base_task_runner.py:95} INFO - Subtask: [2017-06-24
00:31:12,184] {models.py:1126} INFO - Dependencies all met for <TaskInstance:
Sentinel1_copernicus_download.latest_only 2017-06-23 00:31:00 [queued]>
[2017-06-24 00:31:12,188] {base_task_runner.py:95} INFO - Subtask: [2017-06-24
00:31:12,188] {models.py:1126} INFO - Dependencies all met for <TaskInstance:
Sentinel1_copernicus_download.latest_only 2017-06-23 00:31:00 [queued]>
[2017-06-24 00:31:12,188] {base_task_runner.py:95} INFO - Subtask: [2017-06-24
00:31:12,188] {models.py:1318} INFO -
[2017-06-24 00:31:12,188] {base_task_runner.py:95} INFO - Subtask:
--------------------------------------------------------------------------------
[2017-06-24 00:31:12,188] {base_task_runner.py:95} INFO - Subtask: Starting
attempt 1 of 3
[2017-06-24 00:31:12,189] {base_task_runner.py:95} INFO - Subtask:
--------------------------------------------------------------------------------
[2017-06-24 00:31:12,189] {base_task_runner.py:95} INFO - Subtask:
[2017-06-24 00:31:12,228] {base_task_runner.py:95} INFO - Subtask: Traceback
(most recent call last):
[2017-06-24 00:31:12,228] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/bin/airflow", line 28, in <module>
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
args.func(args)
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/airflow/bin/cli.py", line 422, in run
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
pool=args.pool,
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/airflow/utils/db.py", line 53, in
wrapper
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: result =
func(*args, **kwargs)
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/airflow/models.py", line 1328, in run
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
session.commit()
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 801,
in commit
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
self.transaction.commit()
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 392,
in commit
[2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
self._prepare_impl()
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 372,
in _prepare_impl
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask:
self.session.flush()
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 2019,
in flush
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask:
self._flush(objects)
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 2137,
in _flush
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask:
transaction.rollback(_capture_exception=True)
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/util/langhelpers.py", line
60, in __exit__
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask:
compat.reraise(exc_type, exc_value, exc_tb)
[2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 2101,
in _flush
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask:
flush_context.execute()
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/unitofwork.py", line
373, in execute
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask:
rec.execute(self)
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/unitofwork.py", line
532, in execute
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: uow
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/persistence.py", line
170, in save_obj
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: mapper,
table, update)
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/persistence.py", line
634, in _emit_update_statements
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: lambda
rec: (
[2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
"/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/persistence.py", line
531, in _collect_update_commands
[2017-06-24 00:31:12,232] {base_task_runner.py:95} INFO - Subtask: "key
value on column %s" % (table, col))
[2017-06-24 00:31:12,232] {base_task_runner.py:95} INFO - Subtask:
sqlalchemy.orm.exc.FlushError: Can't update table task_instance using NULL for
primary key value on column task_instance.execution_date
[2017-06-24 00:31:12,311] {jobs.py:2083} INFO - Task exited with return code
1}}{quote}
> sqlalchemy.orm.exc.FlushError: Can't update table task_instance using NULL
> for primary key
> ------------------------------------------------------------------------------------------
>
> Key: AIRFLOW-1347
> URL: https://issues.apache.org/jira/browse/AIRFLOW-1347
> Project: Apache Airflow
> Issue Type: Bug
> Components: DagRun, db
> Affects Versions: 1.8.0
> Environment: ubuntu 12.04
> mysql 5.7.18
> Reporter: Antoine Grouazel
> Attachments: bug_airflow.txt
>
>
> *Description of the issue*: the scheduler cannot update the mysql db via
> SqlAlchemy and the tasks are queued and not rescheduled. It affects all our
> DAGs but not all the tasks nor all the time. Manually clear a task having
> such issue can fix the problem for the given task instance.
> There is a kind of random behavior...
> Upgrading mysql 5.7.17 to 5.7.18 does not fix the issue. (x)
> Issue is neitheir fixed in the lastest version 1.8.2rc1 . (x)
> Don't know if there is a link with
> https://issues.apache.org/jira/browse/AIRFLOW-977. (?)
> {quote}
> {{[2017-06-24 00:31:10,272] {models.py:167} INFO - Filling up the DagBag from
> /home3/homedir7/perso/satwave/airflow/dags/sentinel1_copernicus_download.py
> [2017-06-24 00:31:10,427] {base_task_runner.py:112} INFO - Running: ['bash',
> '-c', u'airflow run Sentinel1_copernicus_download latest_only
> 2017-06-23T00:31:00 --job_id 293 --raw -sd
> DAGS_FOLDER/sentinel1_copernicus_download.py']
> [2017-06-24 00:31:11,449] {base_task_runner.py:95} INFO - Subtask:
> [2017-06-24 00:31:11,449] {__init__.py:57} INFO - Using executor
> CeleryExecutor
> [2017-06-24 00:31:11,668] {base_task_runner.py:95} INFO - Subtask:
> [2017-06-24 00:31:11,668] {driver.py:120} INFO - Generating grammar tables
> from /usr/lib/python2.7/lib2to3/Grammar.txt
> [2017-06-24 00:31:11,724] {base_task_runner.py:95} INFO - Subtask:
> [2017-06-24 00:31:11,723] {driver.py:120} INFO - Generating grammar tables
> from /usr/lib/python2.7/lib2to3/PatternGrammar.txt
> [2017-06-24 00:31:12,067] {base_task_runner.py:95} INFO - Subtask:
> [2017-06-24 00:31:12,066] {models.py:167} INFO - Filling up the DagBag from
> /home3/homedir7/perso/satwave/airflow/dags/sentinel1_copernicus_download.py
> [2017-06-24 00:31:12,184] {base_task_runner.py:95} INFO - Subtask:
> [2017-06-24 00:31:12,184] {models.py:1126} INFO - Dependencies all met for
> <TaskInstance: Sentinel1_copernicus_download.latest_only 2017-06-23 00:31:00
> [queued]>
> [2017-06-24 00:31:12,188] {base_task_runner.py:95} INFO - Subtask:
> [2017-06-24 00:31:12,188] {models.py:1126} INFO - Dependencies all met for
> <TaskInstance: Sentinel1_copernicus_download.latest_only 2017-06-23 00:31:00
> [queued]>
> [2017-06-24 00:31:12,188] {base_task_runner.py:95} INFO - Subtask:
> [2017-06-24 00:31:12,188] {models.py:1318} INFO -
> [2017-06-24 00:31:12,188] {base_task_runner.py:95} INFO - Subtask:
> --------------------------------------------------------------------------------
> [2017-06-24 00:31:12,188] {base_task_runner.py:95} INFO - Subtask: Starting
> attempt 1 of 3
> [2017-06-24 00:31:12,189] {base_task_runner.py:95} INFO - Subtask:
> --------------------------------------------------------------------------------
> [2017-06-24 00:31:12,189] {base_task_runner.py:95} INFO - Subtask:
> [2017-06-24 00:31:12,228] {base_task_runner.py:95} INFO - Subtask: Traceback
> (most recent call last):
> [2017-06-24 00:31:12,228] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/bin/airflow", line 28, in <module>
> [2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
> args.func(args)
> [2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/airflow/bin/cli.py", line 422, in run
> [2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
> pool=args.pool,
> [2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/airflow/utils/db.py", line 53, in
> wrapper
> [2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: result
> = func(*args, **kwargs)
> [2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/airflow/models.py", line 1328, in run
> [2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
> session.commit()
> [2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 801,
> in commit
> [2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
> self.transaction.commit()
> [2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 392,
> in commit
> [2017-06-24 00:31:12,229] {base_task_runner.py:95} INFO - Subtask:
> self._prepare_impl()
> [2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line 372,
> in _prepare_impl
> [2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask:
> self.session.flush()
> [2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line
> 2019, in flush
> [2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask:
> self._flush(objects)
> [2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line
> 2137, in _flush
> [2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask:
> transaction.rollback(_capture_exception=True)
> [2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/util/langhelpers.py", line
> 60, in __exit__
> [2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask:
> compat.reraise(exc_type, exc_value, exc_tb)
> [2017-06-24 00:31:12,230] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/session.py", line
> 2101, in _flush
> [2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask:
> flush_context.execute()
> [2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/unitofwork.py", line
> 373, in execute
> [2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask:
> rec.execute(self)
> [2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/unitofwork.py", line
> 532, in execute
> [2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: uow
> [2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/persistence.py", line
> 170, in save_obj
> [2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask:
> mapper, table, update)
> [2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/persistence.py", line
> 634, in _emit_update_statements
> [2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: lambda
> rec: (
> [2017-06-24 00:31:12,231] {base_task_runner.py:95} INFO - Subtask: File
> "/usr/local/lib/python2.7/dist-packages/sqlalchemy/orm/persistence.py", line
> 531, in _collect_update_commands
> [2017-06-24 00:31:12,232] {base_task_runner.py:95} INFO - Subtask: "key
> value on column %s" % (table, col))
> [2017-06-24 00:31:12,232] {base_task_runner.py:95} INFO - Subtask:
> sqlalchemy.orm.exc.FlushError: Can't update table task_instance using NULL
> for primary key value on column task_instance.execution_date
> [2017-06-24 00:31:12,311] {jobs.py:2083} INFO - Task exited with return code
> 1}}{quote}
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