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Posted to dev@mesos.apache.org by "Vinod Kone (JIRA)" <ji...@apache.org> on 2013/01/16 19:52:12 UTC

[jira] [Commented] (MESOS-310) cgroups isolation module should not block on fetching executors

    [ https://issues.apache.org/jira/browse/MESOS-310?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13555333#comment-13555333 ] 

Vinod Kone commented on MESOS-310:
----------------------------------

https://reviews.apache.org/r/8096/
                
> 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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