回复： Dynamic Reservations and --roles

[GradyWang <gr...@foxmail.com>]

MESOS-4144 is duplicated by MESOS-3177(Dynamic Roles/Weights), you can refer to the design doc(https://docs.google.com/document/d/1OIgceqpsjV3-_LGF83IMAFnrh1Ea3Zc16w9kWWPpUj4/edit#heading=h.b0rurfixb4wg) for the details.



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Grady YQ. Wang（王勇桥）
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------------------ 原始邮件 ------------------
发件人: "John Omernik";<jo...@omernik.com>;
发送时间: 2015年12月14日(星期一) 凌晨2:30
收件人: "user@mesos.apache.org"<us...@mesos.apache.org>; 

主题: Re: Dynamic Reservations and --roles



I filed https://issues.apache.org/jira/browse/MESOS-4143 to address the reserve unreserve endpoints reserving roles for non-explicit rules. 

I also opened https://issues.apache.org/jira/browse/MESOS-4144 to add the ability to add roles dynamically based on an API request to properly authorized principals. 


Thanks!


John


On Sat, Dec 12, 2015 at 1:40 AM, Michael Park <mp...@apache.org> wrote:
This seems like a bug to me. Please file a JIRA ticket and I'll sync with Neil regarding what the behavior should be with dynamic/implicit roles in mind.

Thanks!


MPark.

On Fri, Dec 11, 2015 at 1:32 PM Vinod Kone <vi...@apache.org> wrote:


1. If the role specified in the reserve/unreserve operation doesn't exist in --roles on the master, it should reject the reservation on the /reserve endpoint.  Why allow the reservation of roles if you can't use them if they are specified


2. If the role doesn't exist in --roles, and a reservation comes through, it should be added dynamically. This seems to make more sense to me. I.e. adding roles doesn't require a master restart. 





There is currently work in progress to add support for implicit roles (roles not specified via --roles). But, I agree that until we add that feature the /reserve endpoint should reject reservations for unknown roles. Not sure what the rationale was to allow this. @mpark?