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From "Erik Cederstrand (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (AIRFLOW-949) kill_process_tree does not kill the root process
Date Wed, 08 Mar 2017 12:50:38 GMT

     [ https://issues.apache.org/jira/browse/AIRFLOW-949?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Erik Cederstrand updated AIRFLOW-949:
-------------------------------------
    Attachment:     (was: helpers.patch)

> kill_process_tree does not kill the root process
> ------------------------------------------------
>
>                 Key: AIRFLOW-949
>                 URL: https://issues.apache.org/jira/browse/AIRFLOW-949
>             Project: Apache Airflow
>          Issue Type: Bug
>          Components: utils
>    Affects Versions: 1.8.0rc4
>            Reporter: Erik Cederstrand
>              Labels: patch
>
> The kill_process_tree() function in airflow/utils/helper.py does not attempt to kill
the root process. Since there's also a kill_descendant_processes() function, I assume that
was the intent.
> Also, according to the comments, the intent is to send first SIGTERM, and then SIGKILL,
to decendant processes. But in fact, SIGTERM is sent twice.
> The attached patch fixes both problems.
> This was found while investigating why the airflow worker would not kill certain jobs
that had crashed. 



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