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https://issues.apache.org/jira/browse/MESOS-3891?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Guangya Liu updated MESOS-3891:
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There is a ticket MESOS-2647 handling same issue for usage slack.
> Add a helper function to the Agent to check available resources before
> launching a task.
> -----------------------------------------------------------------------------------------
>
> Key: MESOS-3891
> URL: https://issues.apache.org/jira/browse/MESOS-3891
> Project: Mesos
> Issue Type: Bug
> Reporter: Artem Harutyunyan
> Assignee: Guangya Liu
> Labels: mesosphere
>
> Launching a task using revocable resources should be funnelled through an
> accounting system:
> * If a task is launched using revocable resources, the resources must not be
> in use when launching the task. If they are in use, then the task should
> fail to start.
> * If a task is launched using reserved resources, the resources must be made
> available. This means potentially evicting tasks which are using revocable
> resources.
> Both cases could be implemented by adding a check in Slave::runTask, like a
> new helper method:
> {noformat}
> class Slave {
> ...
> // Checks if the given resources are available (i.e. not utilized)
> // for starting a task. If not, the task should either fail to
> // start or result in the eviction of revocable resources.
> virtual process::Future<bool> checkAvailableResources(
> const Resources& resources);
> ...
> }
> {noformat}
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