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Posted to dev@openwhisk.apache.org by Matt Rutkowski <mr...@us.ibm.com> on 2017/06/25 23:52:44 UTC

Re: I want to subscribe

Hi SangHeon,

You can self subscribe to the list by following the instructions here:
http://openwhisk.incubator.apache.org/contact

which has the following instructions:

To subscribe to the list, send a message to:
dev-subscribe@openwhisk.incubator.apache.org

you should get a confirmation almost immediately.

Kind regards,
Matt 



From:   SangHeon Lee <de...@gmail.com>
To:     dev@openwhisk.incubator.apache.org
Date:   06/25/2017 06:47 PM
Subject:        I want to subscribe



Hi, I want to subscribe openwhisk’s mailing list
I’m interested in making controller HA
thanks





Re: I want to subscribe

Posted by Christian Bickel <ap...@cbickel.de>.
Hi SangHeon,

Currently I'm also working on Contorller-HA. I'll put the mail, that I have written to the dev list last week about this topic on the bottom of this mail.

But to shortly summarise it up:
- it is already possible to deploy an hot-standby controller.
- the next step will be to share the cache and the state of the controller.
- Some ideas I already have are written down here: https://github.com/apache/incubator-openwhisk/wiki/Design-discussion-on-HA-of-controller

If you have some more ideas, please let me know about them and/or write a comment to the wiki.
I'm looking forward to work with you.

Greetings
Christian


-----
Mail about controller scale-out:

Hi OpenWhisk-developers,

currently we have the problem, that we can only deploy one controller. Reason for this is some state, that is not shared across the controllers, which would result in a system which is not stable anymore.

To be able, to deploy more than one controller, I already looked into this topic.
I've created a little document, to keep you on track and present you my ideas: https://github.com/apache/incubator-openwhisk/wiki/Design-discussion-on-HA-of-controller (https://github.com/apache/incubator-openwhisk/wiki/Design-discussion-on-HA-of-controller)
Maybe you also have some ideas/concerns, that I missed so far. Just leave them as comment.

There is also already a PR, which will address the first items that are described in the document above. https://github.com/apache/incubator-openwhisk/pull/2205 (https://github.com/apache/incubator-openwhisk/pull/2205)

Greetings
Christian



June 26, 2017 1:53 AM, "Matt Rutkowski" <mr...@us.ibm.com> wrote:

> Hi SangHeon,
> 
> You can self subscribe to the list by following the instructions here:
> http://openwhisk.incubator.apache.org/contact
> 
> which has the following instructions:
> 
> To subscribe to the list, send a message to:
> dev-subscribe@openwhisk.incubator.apache.org
> 
> you should get a confirmation almost immediately.
> 
> Kind regards,
> Matt 
> 
> From: SangHeon Lee <de...@gmail.com>
> To: dev@openwhisk.incubator.apache.org
> Date: 06/25/2017 06:47 PM
> Subject: I want to subscribe
> 
> Hi, I want to subscribe openwhisk’s mailing list
> I’m interested in making controller HA
> thanks