[jira] [Commented] (MESOS-4213) Define a proper RESTful API to keep consistency among role-related configuration endpoints

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

    [ https://issues.apache.org/jira/browse/MESOS-4213?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15104907#comment-15104907 ] 

chenqiang commented on MESOS-4213:
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For the /roles, I suggest add two fields for one type role to represent how much resource is in use now and how much left if many frameworks shares the same role,  as frameworks would exist in one cluster that share same role.

> Define a proper RESTful API to keep consistency among role-related configuration endpoints
> ------------------------------------------------------------------------------------------
>
>                 Key: MESOS-4213
>                 URL: https://issues.apache.org/jira/browse/MESOS-4213
>             Project: Mesos
>          Issue Type: Epic
>            Reporter: Yongqiao Wang
>            Assignee: Yongqiao Wang
>            Priority: Minor
>
> Currently, Mesos uses the following ways to configure role-related objects:
> 1. For dynamic reserve resources for a role, /reserve endpoint is used to reserve, another /unreserve endpoint is used to unreserve, maybe the third endpoint should be added to show resource reservation of a role later due to someone has issue a requirement of this.
> 2. For configuring quota for a role, only one endpoint /quota is provided to set/remove/show quota information.
> 3. For dynamic weights, only one endpoint /weights will be provided to update weight;
> 4. For role information, /roles endpoint is only provided to show role information contains role name, non-default weight and the registered frameworks and their allocated resources, and any role will be allowed, subject to the ACL/authorization system.
> We can find that the design between above endpoints are different, so in the long-run, we like the idea of consistency among these types of endpoints, for example:
> 1. Add a new endpoint /reservations to follow the same PUT+DELETE pattern for reserve+unreserve.
> 2. Add a new endpoint /volumes to follow the same  PUT+DELETE pattern for  create+desgroy.
> 3. Improve /roles endpoints
> 4. etc.



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