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Posted to commits@airflow.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2018/09/02 18:05:03 UTC
[jira] [Assigned] (AIRFLOW-1491) Celery executor restarts result in
duplicate tasks
[ https://issues.apache.org/jira/browse/AIRFLOW-1491?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Apache Spark reassigned AIRFLOW-1491:
-------------------------------------
Assignee: Holden Karau's magical unicorn (was: George Leslie-Waksman)
> Celery executor restarts result in duplicate tasks
> --------------------------------------------------
>
> Key: AIRFLOW-1491
> URL: https://issues.apache.org/jira/browse/AIRFLOW-1491
> Project: Apache Airflow
> Issue Type: Bug
> Reporter: George Leslie-Waksman
> Assignee: Holden Karau's magical unicorn
> Priority: Major
>
> Since the Celery executor uses internal state to determine what it has queued already, anything that wipes the executor state (such as a scheduler restart) will result in rescheduling of tasks.
> This bug exacerbates a number of task scheduling race conditions and can result in duplicate task execution.
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