[jira] [Assigned] (MESOS-1871) Sending SIGTERM to a task command may render it orphaned

["Alexander Rukletsov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MESOS-1871?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexander Rukletsov reassigned MESOS-1871:
------------------------------------------

    Assignee: Alexander Rukletsov

> Sending SIGTERM to a task command may render it orphaned
> --------------------------------------------------------
>
>                 Key: MESOS-1871
>                 URL: https://issues.apache.org/jira/browse/MESOS-1871
>             Project: Mesos
>          Issue Type: Bug
>          Components: slave
>            Reporter: Alexander Rukletsov
>            Assignee: Alexander Rukletsov
>
> {{CommandExecutor}} launches tasks wrapping them into {{sh -c}}. That means signals are sent to the top process—that is {{sh -c}}—and not to the task directly. Though {{SIGTERM}} is propagated by {{sh -c}} down the process tree, if the task is unresponsive to {{SIGTERM}}, {{sh -c}} terminates reporting success to the {{CommandExecutor}}, rendering the task detached from the parent process and still running. Because the {{CommandExecutor}} thinks the command terminated normally, its OS process exits normally and may not trigger containerizer's escalation which destroys cgroups.
> Here is the test related to the first part: [https://gist.github.com/rukletsov/68259dfb02421813f9e6].
> Here is the test related to the second part: [https://gist.github.com/rukletsov/3f19ecc7389fa51e65c0].



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