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Re: [OpenDaylight TSC][lists.opendaylight.org代发]Re: Propose a new project: Alt-datastores

han.jie@...
 

Scope paragraph has been updated:

Scope
1. Alt-datastores would inlude adapters of 3rd-party datastores, one adapter like Yongo should at least have ability of saving binding/normorlized data to a 3rd-party datastore;
2. Alt-datastores would replace CDS to provide the default DOMDataBroker serivce that is transparent to other components.
3. Multiple adatpers could be applied for repica data perpose.



原始邮件
发件人:nite<nite@...>
收件人:Abhijit Kumbhare<abhijitkoss@...>;vorburger<vorburger@...>;Casey Cain<ccain@...>;
抄送人:project-proposals;jinkaiwen@...;;熊泉00091065;guobiaomo@...;lijiansong<lijiansong@...>;zhangminyj@...;
日期:2019-03-31 07:37:37
主题:Re: [OpenDaylight TSC][lists.opendaylight.org代发]Re: Propose a new project: Alt-datastores

Hello,

having reviewed the proposal, I am not quite clear of points here:

- DataTreeChangeService paragraph seems to imply DataTreeChangeService
API contract is not being correctly implemented

- since the feature is integrated at DOMDataBroker level (as opposed at
DOMDataTreeService level), it is not clear how this would work in a
hybrid environment -- I don't quite see where inter-datastore
compatibility is solved. Most notably, it seems that RESTCONF is singled
out as 'special' and has a proxy injected, yet other applications use
specific datastores. How would a mix of CDS/Yongo/etcd-using
applications work and how does this relate to the MD-SAL APIs?

- project scope is a bit blurry. Can we get a clear, bullet-point list
of what the project is all about? The sentence 'For Restconf, it
requires users to rebuild 'restconf-nb-bierman02' and
'restconf-nb-rfc8040' to reference to DOMDataBroker and
DOMDataTreeChangeService with a new type.' feels like a hack, not like a
properly-architected solution. This leads me to believe the project does
not really integrate, as it does a whole-sale replacement of a single
implementation. This is going to a nightmare from packaging perspective,
at the very least.

- the proposal spells DOMRpcService, but does not mention
DOMActionService. RFC7950 makes a rather strong connection between the
operational store and DOMActionService -- what are the interactions
between these?

- what does the 'alt-ds-adapter' do? how does it relate to existing
MD-SAL interface?

- a flow diagram showing interactions between one application using etcd
and another using yongo, is definitely needed. Unless the proposal is to
have such applications live in isolated worlds -- in which case it needs
to be explictly spelled out.

The project proposal has underwent rapid expansion in the few weeks it's
been out and I feel the problem domain is still being explored -- there
are architectural questions which seem to be far from having been
considered, let alone having concrete questions.

I would therefore ask for the review period to be extended, so the
proposal can be fleshed out, especially its interactions with MD-SAL
APIs, packaging and migration point of view.

Note: I am not asking for them to be completely resolved, but rather for
the problems to be acknowledged and a rough outline of a solution to be
brought into the scope of the project or an explicit exclusion added.

Thanks,
Robert


On 30/03/2019 01:30, Abhijit Kumbhare wrote:
> *For Michael's first questions:*
> Isn't there any way we can move on this next week? How about we use that
> TWS slot on Monday where there normally is no agenda for a discussion
> about this with anyone interested?
> 
> *Abhijit's answer:* 
> This Monday-Tuesday we have the DDF. Maybe Jie and you can do a remote
> session at the DDF? What time will work for you folks? (We would like to
> avoid late Tuesday afternoon Pacific time as some ONS related activities
> start).  
> 
> *For Michael's other questions:* 
> Or even just use this email thread to progress asynchronously... does
> anyone reading this have any objections to this project proposal? If
> not, let's just have a vote ASAP?
> 
> *Abhijit's** answer:* 
> In the past, the TSC has offered projects in other timezones to skip
> presenting about the project and for the TSC to vote. In this case it
> certainly makes sense. However there has to be a two week review period
> (as per the creation review process) - which in this case would be March
> 21st to April 3. I will initiate a vote on April 3. 
> 
> 
> On Fri, Mar 29, 2019 at 3:32 AM Michael Vorburger <vorburger@...
> <mailto:vorburger@...>> wrote:
> 
>     On Fri, Mar 29, 2019 at 4:02 AM Abhijit Kumbhare
>     <abhijitkoss@... <mailto:abhijitkoss@...>> wrote:
> 
>         Ok - Michael can you please confirm?
> 
> 
>     I'm on PTO that (and the following) week. Isn't there any way we can
>     move on this next week?
> 
>     How about we use that TWS slot on Monday where there normally is no
>     agenda for a discussion about this with anyone interested?
> 
>     Or even just use this email thread to progress asynchronously...
>     does anyone reading this have any objections to this project
>     proposal? If not, let's just have a vote ASAP?
> 
>     PS: Sorry I missed yesterday's TSC meeting; something unexpected
>     came up.
>      
> 
>         On Thu, Mar 28, 2019 at 5:40 PM <han.jie@...
>         <mailto:han.jie@...>> wrote:
> 
>             Then how about we push it back to April 18th?
> 
> 
>             Thanks,
> 
>             Jie
> 
>             原始邮件
>             *发件人：*MichaelVorburger <vorburger@...
>             <mailto:vorburger@...>>
>             *收件人：*Abhijit Kumbhare <abhijitkoss@...
>             <mailto:abhijitkoss@...>>;
>             *抄送人：*project-proposals@...
>             <mailto:project-proposals@...>
>             <project-proposals@...
>             <mailto:project-proposals@...>>;jinkaiwen@...
>             <mailto:jinkaiwen@...>
>             <jinkaiwen@...
>             <mailto:jinkaiwen@...>>;__<tsc@...
>             <mailto:tsc@...>>;__熊泉
>             00091065;guobiaomo@...
>             <mailto:guobiaomo@...>
>             <guobiaomo@...
>             <mailto:guobiaomo@...>>;lijiansong@...
>             <mailto:lijiansong@...>
>             <lijiansong@...
>             <mailto:lijiansong@...>>;zhangminyj@...
>             <mailto:zhangminyj@...>
>             <zhangminyj@...
>             <mailto:zhangminyj@...>>;
>             *日 期 ：*2019年03月28日 17:06
>             *主 题 ：**Re: [OpenDaylight TSC][lists.opendaylight.org
>             <http://lists.opendaylight.org>代发]Re:  Propose a new
>             project: Alt-datastores*
>             _______________________________________________
>             TSC mailing list
>             TSC@... <mailto:TSC@...>
>             https://lists.opendaylight.org/mailman/listinfo/tsc
> 
> 
>             I just realized that I won't be able to attend the TSC
>             meeting on April 11th (due to school vacation starting here
>             that Friday and related personal plans).
> 
>             If the agenda on today's TSC call is not overly full
>             already, perhaps we could discuss this project proposal today? 
> 
> 
>             On Sat, 23 Mar 2019, 04:18 Abhijit Kumbhare,
>             <abhijitkoss@... <mailto:abhijitkoss@...>> wrote:
> 
>                 The meeting is every Thursday. The details of the
>                 meeting are
>                 at: https://wiki.opendaylight.org/view/TSC:Meeting. So
>                 yes - the Zoom link is a permanent link for the meeting.
> 
> 
>                 On Fri, Mar 22, 2019 at 4:59 PM Yi Yang (杨燚)-云服务集
>                 团 <yangyi01@... <mailto:yangyi01@...>> wrote:
> 
>                     Is next TSC meeting 9:00 AM US Pacific Time On
>                     Thursday, April 11? Is it biweekly? I’ll join this
>                     call for discussion, is this one
>                     https://zoom.us/j/219174946 is permanent meeting
>                     link for it? Anybody can help confirm? Thank you in
>                     advance.
> 
>                      
> 
>                     *发件人:*tsc-bounces@...
>                     <mailto:tsc-bounces@...>
>                     [mailto:tsc-bounces@...
>                     <mailto:tsc-bounces@...>] *代表
>                     *Michael Vorburger
>                     *发送时间:*2019年3月22日18:34
>                     *收件人:*Abhijit Kumbhare <abhijitkoss@...
>                     <mailto:abhijitkoss@...>>
>                     *抄送:*project-proposals@...
>                     <mailto:project-proposals@...>;
>                     jinkaiwen@...
>                     <mailto:jinkaiwen@...>;
>                     <tsc@...
>                     <mailto:tsc@...>>
>                     <tsc@...
>                     <mailto:tsc@...>>;
>                     xiong.quan@...
>                     <mailto:xiong.quan@...>;
>                     guobiaomo@...
>                     <mailto:guobiaomo@...>;
>                     lijiansong@...
>                     <mailto:lijiansong@...>;
>                     zhangminyj@...
>                     <mailto:zhangminyj@...>
>                     *主题:*[lists.opendaylight.org
>                     <http://lists.opendaylight.org>代发]Re:
>                     [OpenDaylight TSC] Propose a new project: Alt-datastores
> 
>                      
> 
>                     On Fri, Mar 22, 2019 at 7:32 AM Abhijit Kumbhare
>                     <abhijitkoss@...
>                     <mailto:abhijitkoss@...>> wrote:
> 
>                         Thank you Jie!
> 
>                          
> 
>                         On Thu, Mar 21, 2019 at 6:37 PM
>                         <han.jie@... <mailto:han.jie@...>>
>                         wrote:
> 
>                             Mr. Chairman, 
> 
>                             Thank you for the arrangement. I will attend
>                             the meeting, will M. and others too?
> 
>                     I'll attend the TSC meeting on April 11.
> 
>                             During the review period,  discussion and
>                             any question is very welcome about the
>                             Alt-datastores.
> 
>                              
> 
>                             Thanks,
> 
>                             Jie
> 
> 
>                                 
> 
>                             原始邮件
> 
>                             *发件人：*AbhijitKumbhare
>                             <abhijitkoss@...
>                             <mailto:abhijitkoss@...>>
> 
>                             *收件人：*韩杰10054376;
> 
>                             *抄送人：*project-proposals
>                             <project-proposals@...
>                             <mailto:project-proposals@...>>;tsc
>                             <tsc@...
>                             <mailto:tsc@...>>;Michael
>                             Vorburger <vorburger@...
>                             <mailto:vorburger@...>>;熊泉
>                             00091065;lijiansong@...
>                             <mailto:00091065%3Blijiansong@...>
>                             <lijiansong@...
>                             <mailto:lijiansong@...>>;guobiao.mo@...
>                             <mailto:guobiao.mo@...>
>                             <guobiao.mo@...
>                             <mailto:guobiao.mo@...>>;zhangminyj@...
>                             <mailto:zhangminyj@...>
>                             <zhangminyj@...
>                             <mailto:zhangminyj@...>>;jinkaiwen@...
>                             <mailto:jinkaiwen@...>
>                             <jinkaiwen@...
>                             <mailto:jinkaiwen@...>>;
> 
>                             *日 期 ：*2019年03月22日08:06
> 
>                             *主 题 ：Re: Propose a new project:
>                             Alt-datastores*
> 
>                             Jie, Michael and folks,
> 
>                             You have submitted the project proposal
>                             today March 21. The next steps would be to
>                             have the creation review for the project in
>                             a TSC meeting after a two week review
>                             period. Ordinarily two weeks would have
>                             placed the review in the April 4th TSC
>                             meeting. Since several of us will be at the
>                             ONS, North America on that date and will
>                             also be meeting in person at the
>                             OpenDaylight DDF on April 1-2, we will
>                             likely cancel that week's meeting. Hence, it
>                             makes sense to have the review in the TSC
>                             meeting on April 11.
> 
>                             Would it be possible for you folks to attend
>                             that meeting? Logistics (web
>                             conference/dial-in) of the TSC meetings are
>                             at: https://wiki.opendaylight.org/view/TSC:Meeting.
> 
>                              
> 
>                             Thanks,
> 
>                             Abhijit
> 
>                              
> 
>                              
> 
>                             On Thu, Mar 21, 2019 at 2:35 AM
>                             <han.jie@...
>                             <mailto:han.jie@...>> wrote:
> 
>                                  
> 
>                                 Dear Abhijit and all, 
>                                 I together with Michael Vorburger and
>                                 team members from China Mobile and China
>                                 Telecom want to propose a new project in
>                                 ODL called Alt-datastores. 
>                                 The topic of this project has alaways
>                                 been discussed in the past. ODL will be
>                                 able to support a 3rd-party datastore
>                                 with our project.
>                                 The details is as the proposal shown:
>                                  https://wiki.opendaylight.org/view/Project_Proposals:Alt-datastores
> 
>                                 Please let me know what should I do next. 
> 
>                                 Best Regards, 
>                                 Jie
> 
>                                  
> 
>                                 韩杰 hanjie
> 
>                                 软件开发工程师 Software Developer
>                                 软件平台南京开发一部/有线研究院/有线产品
>                                 经营部  
> 
>                                 Software Platform Nanjing Development
>                                 Dept I/Wireline Product R&D
>                                 Institute/Wireline Product Operation
>                                 Division
> 
> 
>                                     
> 
>                                  
> 
> 
> 
> _______________________________________________
> TSC mailing list
> TSC@...
> https://lists.opendaylight.org/mailman/listinfo/tsc
> 

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