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From "Vinod Kone (JIRA)" <j...@apache.org>
Subject [jira] [Assigned] (MESOS-310) cgroups isolation module should not block on fetching executors
Date Thu, 15 Nov 2012 20:47:12 GMT

     [ https://issues.apache.org/jira/browse/MESOS-310?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Vinod Kone reassigned MESOS-310:
--------------------------------

    Assignee: Vinod Kone
    
> cgroups isolation module should not block on fetching executors
> ---------------------------------------------------------------
>
>                 Key: MESOS-310
>                 URL: https://issues.apache.org/jira/browse/MESOS-310
>             Project: Mesos
>          Issue Type: Bug
>            Reporter: Vinod Kone
>            Assignee: Vinod Kone
>
> With the latest refactor in isolation module, fetching of an executor is done by the
isolation module.
> If for some reason the fetch blocks (for eg: HDFS issue), all the other messages to the
isolation module are enqueued. This is problematic because, when a new task arrives, the slave
currently dispatches resourcesChanged() call to the isolation module and immediately sends
the task to the executor. 
> Subsequently, the executor might be running a task without the isolation module updating
the cgroups!

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