[jira] [Created] (MESOS-4123) Enable agent/master know resource type is USAGE_SLACK for QoS Controller related resources

["Guangya Liu (JIRA)" <ji...@apache.org>]

Guangya Liu created MESOS-4123:
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             Summary: Enable agent/master know resource type is USAGE_SLACK for QoS Controller related resources
                 Key: MESOS-4123
                 URL: https://issues.apache.org/jira/browse/MESOS-4123
             Project: Mesos
          Issue Type: Bug
            Reporter: Guangya Liu


Now the master/agent have endpoint to get all revocable resources but the current revocable resources are only for QoS controller.

The current use of those resource are only for some display issues, but we may need those APIs in future such as MESOS-2647 , it need to calculate if there are enough usage_slack revocable resources before launch a task.

So I think that we need to update the helper functions of
{code}_resources_revocable_total{code}
{code}_resources_revocable_used{code}
{code}_resources_revocable_percent{code}
to only get usage_slack revocable resources .



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