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From "Kevin Klues (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MESOS-7050) IOSwitchboard FDs leaked when containerizer launch fails -- leads to deadlock
Date Wed, 22 Feb 2017 20:00:47 GMT

    [ https://issues.apache.org/jira/browse/MESOS-7050?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15879113#comment-15879113
] 

Kevin Klues commented on MESOS-7050:
------------------------------------

This should be backported to 1.2.x assuming it makes it in before the next RC is cut.

> IOSwitchboard FDs leaked when containerizer launch fails -- leads to deadlock
> -----------------------------------------------------------------------------
>
>                 Key: MESOS-7050
>                 URL: https://issues.apache.org/jira/browse/MESOS-7050
>             Project: Mesos
>          Issue Type: Bug
>            Reporter: Kevin Klues
>            Assignee: Kevin Klues
>            Priority: Critical
>              Labels: debugging, mesosphere
>
> If the containizer launch path fails before actually
> launching the container, the FDs allocated to the container by the
> IOSwitchboard isolator are leaked. This leads to deadlock in
> the destroy path because the IOSwitchboard does not shutdown until the
> FDs it allocates to the container have been closed. Since the
> switchboard doesn't shutdown, the future returned by its 'cleanup()'
> function is never satisfied. 
> We need a general purpose method for closing the IOSwitchboard FDs when failing in the
launch path.



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