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Fix backfill occassional deadlocking #26161

Merged
merged 2 commits into from
Sep 6, 2022
Merged

Fix backfill occassional deadlocking #26161

merged 2 commits into from
Sep 6, 2022

Commits on Sep 6, 2022

  1. Fix backfill occassional deadlocking 

    During backfilling, we set all task instances of the dagrun being run to scheduled,
this causes deadlocking of the dagrun whenever dagrun.update_state is called and
there's no running or schedulable task instances.
The fix was to remove the batch update of the task instances to scheduled state
 and have the executor queue the tasks that the dependencies have been met.
    @ephraimbuddy
    ephraimbuddy committed Sep 6, 2022
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  2. Have tasks go to scheduled before queued

    @ephraimbuddy
    ephraimbuddy committed Sep 6, 2022
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