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https://issues.apache.org/jira/browse/AIRFLOW-6175?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ash Berlin-Taylor resolved AIRFLOW-6175.
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Fix Version/s: (was: 1.10.6)
1.10.7
Resolution: Fixed
> Executor changes queued tasks to scheduled without removing from task queue
> ---------------------------------------------------------------------------
>
> Key: AIRFLOW-6175
> URL: https://issues.apache.org/jira/browse/AIRFLOW-6175
> Project: Apache Airflow
> Issue Type: Bug
> Components: scheduler
> Affects Versions: 1.10.6
> Reporter: Daniel Imberman
> Priority: Blocker
> Fix For: 1.10.7
>
>
> There is a bug caused by scheduler_jobs refactor which leads to task failure
> and scheduler locking.
> Essentially when a there is an overflow of tasks going into the scheduler,
> the tasks are set back to scheduled, but are not removed from the executor's
> queued_tasks queue.
> This means that the executor will attempt to run tasks that are in the
> scheduled state, but those tasks will fail dependency checks. Eventually the
> queue is filled with scheduled tasks, and the scheduler can no longer run.
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