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Posted to commits@airflow.apache.org by GitBox <gi...@apache.org> on 2019/03/03 17:19:03 UTC
[GitHub] [airflow] amichai07 commented on a change in pull request #4751:
[AIRFLOW-3607] collected trigger rule dep check per dag run
amichai07 commented on a change in pull request #4751: [AIRFLOW-3607] collected trigger rule dep check per dag run
URL: https://github.com/apache/airflow/pull/4751#discussion_r261877155
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File path: airflow/ti_deps/deps/trigger_rule_dep.py
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@@ -49,33 +49,49 @@ def _get_dep_statuses(self, ti, session, dep_context):
yield self._passing_status(reason="The task had a dummy trigger rule set.")
return
- # TODO(unknown): this query becomes quite expensive with dags that have many
- # tasks. It should be refactored to let the task report to the dag run and get the
- # aggregates from there.
- qry = (
- session
- .query(
- func.coalesce(func.sum(
- case([(TI.state == State.SUCCESS, 1)], else_=0)), 0),
- func.coalesce(func.sum(
- case([(TI.state == State.SKIPPED, 1)], else_=0)), 0),
- func.coalesce(func.sum(
- case([(TI.state == State.FAILED, 1)], else_=0)), 0),
- func.coalesce(func.sum(
- case([(TI.state == State.UPSTREAM_FAILED, 1)], else_=0)), 0),
- func.count(TI.task_id),
+ successes, skipped, failed, upstream_failed, done = 0, 0, 0, 0, 0
+ if dep_context.finished_tasks is None:
+ qry = (
+ session
+ .query(
+ func.coalesce(func.sum(
+ case([(TI.state == State.SUCCESS, 1)], else_=0)), 0),
+ func.coalesce(func.sum(
+ case([(TI.state == State.SKIPPED, 1)], else_=0)), 0),
+ func.coalesce(func.sum(
+ case([(TI.state == State.FAILED, 1)], else_=0)), 0),
+ func.coalesce(func.sum(
+ case([(TI.state == State.UPSTREAM_FAILED, 1)], else_=0)), 0),
+ func.count(TI.task_id),
Review comment:
Yes, almost the same here, I will add UPSTREAM_FAILED and we will see what happen
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