[jira] [Updated] (MESOS-3889) Modify Oversubscription documentation to explicitly forbid the QoS Controller from killing executors running on optimistically offered resources.

["Klaus Ma (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MESOS-3889?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Klaus Ma updated MESOS-3889:
----------------------------
    Assignee:     (was: Klaus Ma)

> 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
>              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}



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)