Fix catchup by limiting queued dagrun creation using max_active_runs #18897
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ephraimbuddy
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Oct 11, 2021
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ashb
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Oct 12, 2021
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This needs more tests please:
- Check that when there are n-1th dag_runs and we call _schedule_dag_run to create the n-th dag run that the relevant date columns are set to null
- Check that when at max active runs (inc queued) that parsing the dag does not reset the columns
- Check that when a dag run was in running state but that it's final task is completed that _schedule_dag_runs correctly sets the next_dagrun columns
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uranusjr
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Oct 18, 2021
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uranusjr
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Oct 19, 2021
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Oct 19, 2021
Currently, when catchup is True, we create a lot of dagruns limited by max_queued_runs_per_dag setting. This is not efficient as some dagruns takes longer to run. This PR brings back the old behaviour of not creating dagruns once max_active_runs is reached thereby solving the catchup issue. Now, the dagruns appears as though they were created in running state improve code and add more tests fixup! improve code and add more tests Add information about removing of max_queued_runs_per_dag add method for active runs remove comment deduplicate dag_ids Update airflow/models/dagrun.py Co-authored-by: Tzu-ping Chung <uranusjr@gmail.com> Update airflow/jobs/scheduler_job.py Co-authored-by: Tzu-ping Chung <uranusjr@gmail.com> Update airflow/jobs/scheduler_job.py Co-authored-by: Tzu-ping Chung <uranusjr@gmail.com>
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uranusjr
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Oct 20, 2021
jedcunningham
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Oct 20, 2021
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Tests have been added and feedback addressed.
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…18897) Currently, when catchup is True, we create a lot of dagruns limited by max_queued_runs_per_dag setting. This is not efficient as some dagruns takes longer to run. This PR brings back the old behavior of not creating dagruns once max_active_runs is reached thereby solving the catchup issue. Now, the dagruns appears as though they were created in running state (cherry picked from commit 05eea00)
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Oct 26, 2021
…pache#18897) Currently, when catchup is True, we create a lot of dagruns limited by max_queued_runs_per_dag setting. This is not efficient as some dagruns takes longer to run. This PR brings back the old behavior of not creating dagruns once max_active_runs is reached thereby solving the catchup issue. Now, the dagruns appears as though they were created in running state (cherry picked from commit 05eea00)
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Oct 27, 2021
…pache#18897) Currently, when catchup is True, we create a lot of dagruns limited by max_queued_runs_per_dag setting. This is not efficient as some dagruns takes longer to run. This PR brings back the old behavior of not creating dagruns once max_active_runs is reached thereby solving the catchup issue. Now, the dagruns appears as though they were created in running state
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…pache#18897) Currently, when catchup is True, we create a lot of dagruns limited by max_queued_runs_per_dag setting. This is not efficient as some dagruns takes longer to run. This PR brings back the old behavior of not creating dagruns once max_active_runs is reached thereby solving the catchup issue. Now, the dagruns appears as though they were created in running state (cherry picked from commit 05eea00)
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Nov 1, 2021
Fix #19304, and also an issue on scheduling a DAG's first-ever run introduced in #18897. We could fix it outside this function, but if `next_dagrun` is None, the next run's data interval is supposed to be None in the first place, so checking inside this function just makes sense. closes #19343 closes #19304
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) Fix apache#19304, and also an issue on scheduling a DAG's first-ever run introduced in apache#18897. We could fix it outside this function, but if `next_dagrun` is None, the next run's data interval is supposed to be None in the first place, so checking inside this function just makes sense. closes apache#19343 closes apache#19304 (cherry picked from commit dc4dcaa)
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) Fix apache#19304, and also an issue on scheduling a DAG's first-ever run introduced in apache#18897. We could fix it outside this function, but if `next_dagrun` is None, the next run's data interval is supposed to be None in the first place, so checking inside this function just makes sense. closes apache#19343 closes apache#19304 (cherry picked from commit dc4dcaa)
kaxil
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Nov 2, 2021
Fix #19304, and also an issue on scheduling a DAG's first-ever run introduced in #18897. We could fix it outside this function, but if `next_dagrun` is None, the next run's data interval is supposed to be None in the first place, so checking inside this function just makes sense. closes #19343 closes #19304 (cherry picked from commit dc4dcaa)
jedcunningham
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Nov 3, 2021
Fix #19304, and also an issue on scheduling a DAG's first-ever run introduced in #18897. We could fix it outside this function, but if `next_dagrun` is None, the next run's data interval is supposed to be None in the first place, so checking inside this function just makes sense. closes #19343 closes #19304 (cherry picked from commit dc4dcaa)
This was referenced Nov 10, 2021
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Currently, when catchup is True, we create a lot of dagruns limited by
max_queued_runs_per_dag setting. This is not efficient as some dagruns takes
longer to run.
This PR brings back the old behaviour of not creating dagruns once max_active_runs
is reached thereby solving the catchup issue.
Now, the dagruns appears as though they were created in running state
Closes: #18487
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