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https://issues.apache.org/jira/browse/AIRFLOW-2701?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16716084#comment-16716084
]
ASF GitHub Bot commented on AIRFLOW-2701:
-----------------------------------------
feng-tao closed pull request #3562: [WIP][AIRFLOW-2701] Clean up backfill
dangling dagrun
URL: https://github.com/apache/incubator-airflow/pull/3562
This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:
As this is a foreign pull request (from a fork), the diff is supplied
below (as it won't show otherwise due to GitHub magic):
diff --git a/airflow/jobs.py b/airflow/jobs.py
index 00ede5451d..8f19a67231 100644
--- a/airflow/jobs.py
+++ b/airflow/jobs.py
@@ -2008,6 +2008,7 @@ def __init__(
self.verbose = verbose
self.conf = conf
self.rerun_failed_tasks = rerun_failed_tasks
+ self.dag_runs = []
super(BackfillJob, self).__init__(*args, **kwargs)
def _update_counters(self, ti_status):
@@ -2469,6 +2470,7 @@ def _execute_for_run_dates(self, run_dates, ti_status,
executor, pickle_id,
session=session)
if dag_run is None:
continue
+ self.dag_runs.append(dag_run)
ti_status.active_runs.append(dag_run)
ti_status.to_run.update(tis_map or {})
@@ -2540,9 +2542,32 @@ def _execute(self, session=None):
self.dag_id
)
time.sleep(self.delay_on_limit_secs)
+
+ except (KeyboardInterrupt, SystemExit):
+ for dag_run in self.dag_runs:
+ dag_run.refresh_from_db(session)
+ make_transient(dag_run)
+
+ # Check all the tasks which are not in success state.
+ check_state = State.unfinished() + State.finished()
+ check_state.remove(State.SUCCESS)
+
+ unfinished_tasks = dag_run.get_task_instances(
+ state=check_state,
+ session=session
+ )
+ if unfinished_tasks:
+ # if there are unfinished tasks and ctrl^c
+ # set dag run state to failed
+ for task in unfinished_tasks:
+ task.set_state(State.FAILED, session)
+ dag_run.state = State.FAILED
+ else:
+ dag_run.state = State.SUCCESS
+ session.merge(dag_run)
finally:
- executor.end()
session.commit()
+ executor.end()
self.log.info("Backfill done. Exiting.")
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> Clean up dangling backfill dagrun
> ---------------------------------
>
> Key: AIRFLOW-2701
> URL: https://issues.apache.org/jira/browse/AIRFLOW-2701
> Project: Apache Airflow
> Issue Type: Bug
> Reporter: Tao Feng
> Assignee: Tao Feng
> Priority: Major
>
> When user tries to backfill and hit ctrol+9, the backfill dagrun will stay as
> running state. We should set it to failed if it has unfinished tasks.
>
> In our production, we see lots of these dangling backfill dagrun which will
> cause as one active dagrun in the next backfill. This may prevent user from
> backfilling if the max_active_run is reached.
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