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https://issues.apache.org/jira/browse/AIRFLOW-5071?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17232695#comment-17232695
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ASF GitHub Bot commented on AIRFLOW-5071:
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yuqian90 commented on issue #10790:
URL: https://github.com/apache/airflow/issues/10790#issuecomment-727920248
> > The bug can also be fixed if the rescheduled task instance use a
different try number, but this will cause a lot of log files.
>
> I saw customers doing this (custom fork). I'm curious if this error will
occur in Airflow 2.0
Hi @turbaszek I did not test this in Airflow 2.0 so I may be wrong. I don't
see any attempts to address this in Airflow 2.0 so this is likely going to
happen in 2.0 too. That said, the scheduler loop is faster in Airflow 2.0, the
chance of running into this `ERROR - Executor reports task instance ... killed
externally` issue should become smaller.
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> Thousand os Executor reports task instance X finished (success) although the
> task says its queued. Was the task killed externally?
> ----------------------------------------------------------------------------------------------------------------------------------
>
> Key: AIRFLOW-5071
> URL: https://issues.apache.org/jira/browse/AIRFLOW-5071
> Project: Apache Airflow
> Issue Type: Bug
> Components: DAG, scheduler
> Affects Versions: 1.10.3
> Reporter: msempere
> Priority: Critical
> Fix For: 1.10.12
>
> Attachments: image-2020-01-27-18-10-29-124.png,
> image-2020-07-08-07-58-42-972.png
>
>
> I'm opening this issue because since I update to 1.10.3 I'm seeing thousands
> of daily messages like the following in the logs:
>
> ```
> {{__init__.py:1580}} ERROR - Executor reports task instance <TaskInstance: X
> 2019-07-29 00:00:00+00:00 [queued]> finished (success) although the task says
> its queued. Was the task killed externally?
> {{jobs.py:1484}} ERROR - Executor reports task instance <TaskInstance: X
> 2019-07-29 00:00:00+00:00 [queued]> finished (success) although the task says
> its queued. Was the task killed externally?
> ```
> -And looks like this is triggering also thousand of daily emails because the
> flag to send email in case of failure is set to True.-
> I have Airflow setup to use Celery and Redis as a backend queue service.
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