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https://issues.apache.org/jira/browse/AIRFLOW-721?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15785614#comment-15785614
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ASF subversion and git services commented on AIRFLOW-721:
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Commit 75c3e1d29b3d00d1b8fb8764f9a952b444d4ae61 in incubator-airflow's branch
refs/heads/master from [~bolke]
[ https://git-wip-us.apache.org/repos/asf?p=incubator-airflow.git;h=75c3e1d ]
Merge branch 'AIRFLOW-721'
> Descendant process can have disappeared before termination
> ----------------------------------------------------------
>
> Key: AIRFLOW-721
> URL: https://issues.apache.org/jira/browse/AIRFLOW-721
> Project: Apache Airflow
> Issue Type: Bug
> Components: executor
> Reporter: Bolke de Bruin
> Assignee: Bolke de Bruin
> Fix For: Airflow 1.8
>
>
> The is a race condition in helpers.py's kill_descendant_processes that checks
> for running processes and then tries to terminate them. This is not done
> atomically allowing for a small window where a PID can disappear before
> termination.
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