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https://issues.apache.org/jira/browse/MESOS-3889?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Joseph Wu updated MESOS-3889:
-----------------------------
Description:
The oversubcription documentation currently assumes that oversubscribed
resources ({{USAGE_SLACK}}) are the only type of revocable resources.
Optimistic offers will add a second type of revocable resource
({{ALLOCATION_SLACK}}) that should not be acted upon by oversubscription
components.
For example, the [oversubscription
doc|http://mesos.apache.org/documentation/latest/oversubscription/] says the
following:
{quote}
NOTE: If any resource used by a task or executor is revocable, the whole
container is treated as a revocable container and can therefore be killed or
throttled by the QoS Controller.
{quote}
which we may amend to something like:
{quote}
NOTE: If any resource used by a task or executor is revocable usage slack, the
whole container is treated as an oversubscribed container and can therefore be
killed or throttled by the QoS Controller.
{quote}
> Modify Oversubscription documentation to explicitly forbid the QoS Controller
> from killing executors running on optimistically offered resources.
> -------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: MESOS-3889
> URL: https://issues.apache.org/jira/browse/MESOS-3889
> Project: Mesos
> Issue Type: Bug
> Reporter: Artem Harutyunyan
> Assignee: Klaus Ma
> Labels: mesosphere
>
> The oversubcription documentation currently assumes that oversubscribed
> resources ({{USAGE_SLACK}}) are the only type of revocable resources.
> Optimistic offers will add a second type of revocable resource
> ({{ALLOCATION_SLACK}}) that should not be acted upon by oversubscription
> components.
> For example, the [oversubscription
> doc|http://mesos.apache.org/documentation/latest/oversubscription/] says the
> following:
> {quote}
> NOTE: If any resource used by a task or executor is revocable, the whole
> container is treated as a revocable container and can therefore be killed or
> throttled by the QoS Controller.
> {quote}
> which we may amend to something like:
> {quote}
> NOTE: If any resource used by a task or executor is revocable usage slack,
> the whole container is treated as an oversubscribed container and can
> therefore be killed or throttled by the QoS Controller.
> {quote}
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