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From "Yan Xu (JIRA)" <>
Subject [jira] [Updated] (MESOS-7215) Race condition on re-registration of non-partition-aware frameworks
Date Thu, 09 Mar 2017 23:32:38 GMT


Yan Xu updated MESOS-7215:
    Affects Version/s: 1.2.0

> Race condition on re-registration of non-partition-aware frameworks
> -------------------------------------------------------------------
>                 Key: MESOS-7215
>                 URL:
>             Project: Mesos
>          Issue Type: Bug
>    Affects Versions: 1.2.0
>            Reporter: Yan Xu
>            Priority: Critical
> Prior to the partition-awareness work MESOS-5344, upon agent reregistration after it
has been removed, the master only sends ShutdownFrameworkMessages to the agent for frameworks
that it knows have been torn down. 
> With the new logic in MESOS-5344, Mesos is now sending {{ShutdownFrameworkMessages}}
to the agent for all non-partition-aware frameworks (including the ones that are still registered)
> This is problematic. The offer from this agent can still go to the same framework which
can then launch new tasks. The agent then receives tasks of the same framework and ignores
them because it thinks the framework is shutting down. The framework is not shutting down
of course, so from the master and the scheduler's perspective the task is pending in STAGING
forever until the next agent reregistration, which could happen much later.
> This also makes the semantics of `ShutdownFrameworkMessage` ambiguous: the agent is assuming
the framework to be going away (and act accordingly) when it's not. 

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