[openstack-dev] [magnum] Document adding --memory option to create containers

Qiao,Liyong liyong.qiao at intel.com
Fri Oct 9 01:27:37 UTC 2015


+1, we can add more detail explanation information of --memory in magnum 
CLI instead of quick start.

Eli.

On 2015年10月09日 07:45, Vikas Choudhary wrote:
> In my opinion, there should be a more detailed document explaining 
> importance of commands and options.
> Though --memory is an important attribute, but since objective of 
> quickstart is to get user a minimum working system within minimum 
> time, it seems better to skip this option in quickstart.
>
>
> -Vikas
>
> On Fri, Oct 9, 2015 at 1:47 AM, Egor Guz <EGuz at walmartlabs.com 
> <mailto:EGuz at walmartlabs.com>> wrote:
>
>     Adrian,
>
>     I agree with Steve, otherwise it’s hard to find balance what
>     should go to quick start guide (e.g. many operators worry about
>     cpu or I/O instead of memory).
>     Also I belve auto-scalling deserve it’s own detail document.
>
>>     Egor
>
>     From: Adrian Otto <adrian.otto at rackspace.com
>     <mailto:adrian.otto at rackspace.com><mailto:adrian.otto at rackspace.com <mailto:adrian.otto at rackspace.com>>>
>     Reply-To: "OpenStack Development Mailing List (not for usage
>     questions)" <openstack-dev at lists.openstack.org
>     <mailto:openstack-dev at lists.openstack.org><mailto:openstack-dev at lists.openstack.org
>     <mailto:openstack-dev at lists.openstack.org>>>
>     Date: Thursday, October 8, 2015 at 13:04
>     To: "OpenStack Development Mailing List (not for usage questions)"
>     <openstack-dev at lists.openstack.org
>     <mailto:openstack-dev at lists.openstack.org><mailto:openstack-dev at lists.openstack.org
>     <mailto:openstack-dev at lists.openstack.org>>>
>     Subject: Re: [openstack-dev] [magnum] Document adding --memory
>     option to create containers
>
>     Steve,
>
>     I agree with the concept of a simple quickstart doc, but there
>     also needs to be a comprehensive user guide, which does not yet
>     exist. In the absence of the user guide, the quick start is the
>     void where this stuff is starting to land. We simply need to put
>     together a magnum reference document, and start moving content
>     into that.
>
>     Adrian
>
>     On Oct 8, 2015, at 12:54 PM, Steven Dake (stdake)
>     <stdake at cisco.com
>     <mailto:stdake at cisco.com><mailto:stdake at cisco.com
>     <mailto:stdake at cisco.com>>> wrote:
>
>     Quickstart guide should be dead dead dead dead simple. The goal of
>     the quickstart guide isn’t to tach people best practices around
>     Magnum.  It is to get a developer operational to give them that
>     sense of feeling that Magnum can be worked on.  The goal of any
>     quickstart guide should be to encourage the thinking that a person
>     involving themselves with the project the quickstart guide
>     represents is a good use of the person’s limited time on the planet.
>
>     Regards
>     -steve
>
>
>     From: Hongbin Lu <hongbin.lu at huawei.com
>     <mailto:hongbin.lu at huawei.com><mailto:hongbin.lu at huawei.com
>     <mailto:hongbin.lu at huawei.com>>>
>     Reply-To: "OpenStack Development Mailing List (not for usage
>     questions)" <openstack-dev at lists.openstack.org
>     <mailto:openstack-dev at lists.openstack.org><mailto:openstack-dev at lists.openstack.org
>     <mailto:openstack-dev at lists.openstack.org>>>
>     Date: Thursday, October 8, 2015 at 9:00 AM
>     To: "OpenStack Development Mailing List (not for usage questions)"
>     <openstack-dev at lists.openstack.org
>     <mailto:openstack-dev at lists.openstack.org><mailto:openstack-dev at lists.openstack.org
>     <mailto:openstack-dev at lists.openstack.org>>>
>     Subject: [openstack-dev] [magnum] Document adding --memory option
>     to create containers
>
>     Hi team,
>
>     I want to move the discussion in the review below to here, so that
>     we can get more feedback
>
>     https://review.openstack.org/#/c/232175/
>
>     In summary, magnum currently added support for specifying the
>     memory size of containers. The specification of the memory size is
>     optional, and the COE won’t reserve any memory to the containers
>     with unspecified memory size. The debate is whether we should
>     document this optional parameter in the quickstart guide. Below is
>     the positions of both sides:
>
>     Pros:
>     ·         It is a good practice to always specifying the memory
>     size, because containers with unspecified memory size won’t have
>     QoS guarantee.
>     ·         The in-development autoscaling feature [1] will query
>     the memory size of each container to estimate the residual
>     capacity and triggers scaling accordingly. Containers with
>     unspecified memory size will be treated as taking 0 memory, which
>     negatively affects the scaling decision.
>     Cons:
>     ·         The quickstart guide should be kept as simple as
>     possible, so it is not a good idea to have the optional parameter
>     in the guide.
>
>     Thoughts?
>
>     [1] https://blueprints.launchpad.net/magnum/+spec/autoscale-bay
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-- 
BR, Eli(Li Yong)Qiao

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