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https://issues.apache.org/jira/browse/AIRFLOW-4750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16859047#comment-16859047
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ASF GitHub Bot commented on AIRFLOW-4750:
-----------------------------------------
chrismclennon commented on pull request #5389: [AIRFLOW-4750] Log identified
zombie task instances
URL: https://github.com/apache/airflow/pull/5389
Make sure you have checked _all_ steps below.
### Jira
- [x] My PR addresses the following [Airflow
Jira](https://issues.apache.org/jira/browse/AIRFLOW/) issues and references
them in the PR title. For example, "\[AIRFLOW-XXX\] My Airflow PR"
- [AIRFLOW-4750](https://issues.apache.org/jira/browse/AIRFLOW-4750)
### Description
While troubleshooting task instances that were unexpectedly killed I found
it helpful to confirm whether the task was identified as a zombie by printing
to log.
### Tests
- [x] My PR adds the following unit tests __OR__ does not need testing for
this extremely good reason:
- No unit test appears to be productive for printing to log.
### Commits
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have squashed multiple commits if they address the same issue. In addition, my
commits follow the guidelines from "[How to write a good git commit
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1. Subject is separated from body by a blank line
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1. Subject uses the imperative mood ("add", not "adding")
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1. Body explains "what" and "why", not "how"
### Documentation
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- All the public functions and the classes in the PR contain docstrings
that explain what it does
- If you implement backwards incompatible changes, please leave a note in
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### Code Quality
- [x] Passes `flake8`
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> Add log to specify which zombie task instances are killed
> ---------------------------------------------------------
>
> Key: AIRFLOW-4750
> URL: https://issues.apache.org/jira/browse/AIRFLOW-4750
> Project: Apache Airflow
> Issue Type: Improvement
> Components: scheduler
> Affects Versions: 1.10.3
> Reporter: Chris McLennon
> Assignee: Chris McLennon
> Priority: Minor
>
> While troubleshooting task instances that got killed I wanted to see if the
> task instance got killed by the process that finds zombies and added a log to
> print which task instances were identified as zombies. I think this will be
> useful to share.
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