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https://issues.apache.org/jira/browse/MESOS-7215?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15899960#comment-15899960
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Yan Xu commented on MESOS-7215:
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[~neilc] About the correctness of {{ShutdownFrameworkMessage}}: the agent is
thinking the framework went away so it doesn't sent status updates for these
tasks. AFAICT the master is not sending them either? If this is the case then
it's not simply a race condition?
I probably won't be able to get to it this week so please take it if you can :)
otherwise I'll see if I can next week.
> Race condition on re-registration of non-partition-aware frameworks
> -------------------------------------------------------------------
>
> Key: MESOS-7215
> URL: https://issues.apache.org/jira/browse/MESOS-7215
> Project: Mesos
> Issue Type: Bug
> 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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