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" <[email protected]> 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: > [email protected] > > you should get a confirmation almost immediately. > > Kind regards, > Matt > > From: SangHeon Lee <[email protected]> > To: [email protected] > 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
