Robert Joseph Evans updated STORM-2018:
    Fix Version/s: 2.0.0

> Simplify Threading Model of the Supervisor
> ------------------------------------------
>                 Key: STORM-2018
>                 URL: https://issues.apache.org/jira/browse/STORM-2018
>             Project: Apache Storm
>          Issue Type: New Feature
>          Components: storm-core
>    Affects Versions: 1.0.0, 2.0.0
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>             Fix For: 2.0.0
>         Attachments: Slot.dot, Slot.svg
>          Time Spent: 40h 10m
>  Remaining Estimate: 0h
> We have been trying to roll out CGROUP enforcement and right now are running 
> into a number of race conditions in the supervisor.  When using CGROUPS the 
> timing of some operations are different and are exposing issues that we would 
> not see without this.
> In order to make progress with testing/deploying CGROUP and RAS we are going 
> to try and refactor the supervisor to have a simpler threading model, but 
> likely with more threads.  We will base the code off of the java code 
> currently in master, and may replace that in the 2.0 release, but plan on 
> having it be a part of 1.x too, if it truly is more stable.
> I will try to keep this JIRA up to date with what we are doing and the 
> architecture to keep the community informed.  We need to move quickly to meet 
> some of our company goals but will not just shove this in.  We welcome any 
> feedback on the design and code before it goes into the community.

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