As with any complex task - nobody can predict result, until start to 
implement first iteration of code :)
I think, now everyone have to reinvent weel, because no ready solution 
exists.

Do you have examples of edge cases, not covered with generic approach 
(nxinx restart algorythm)?

суббота, 8 июня 2013 г., 4:10:03 UTC+4 пользователь Isaac Schlueter написал:
>
> I do this with the npmjs.org site using the cluster-master module. 
>
> https://npmjs.org/package/cluster-master 
>
> I only have to restart the main process if there's a change to the 
> main server.js file.  Otherwise, I log into the repl, and I can 
> restart workers one by one, resize the cluster, etc. 
>
> Getting all the edge cases handled properly is very app-specific, and 
> in multi-machine setups, it will be completely extraneous. 
>
> So, unlike Ben, I would reject a pull request flat-out for this 
> feature, unless someone could present a *very* compelling case for why 
> everyone ought to have the same logic in all their apps.  I don't 
> believe that this belongs in core. 
>
>
> On Thu, Jun 6, 2013 at 9:41 PM, Evan <[email protected] <javascript:>> 
> wrote: 
> > I approached this problem a little differently, and have a semi-decent 
> > solution in actionHero today: 
> > 
> https://github.com/evantahler/actionHero/blob/master/bin/include/startCluster.js
>  
> > 
> > If the master process is simple enough, you can probably get away with 
> > rarely reloading it.  Mine only handles the spawning of children and 
> basic 
> > unix signaling.  Parent and Child don't need to be running the same 
> code, so 
> > your *real* application code is executed by the children.  When it's 
> time to 
> > upgrade the code for your application, you roll off (kill one, start a 
> new 
> > one, repeat) the children until you have a newly spawned collection. 
> > 
> > Regarding websockets, one of the main reasons I moved from socket.io to 
> Faye 
> > is that it supports clients reconnected to another server (with a redis 
> > backend).  This way, clients will reconnect to a new cluster member as 
> they 
> > roll over (albiet with some period of disconnect). 
> > 
> > On Thursday, June 6, 2013 3:49:59 PM UTC-7, ryandesign wrote: 
> >> 
> >> 
> >> On Jun 6, 2013, at 05:22, Ben Noordhuis wrote: 
> >> 
> >> > Secondly, I'm not sure how many people will actually use it.  I 
> assume 
> >> > most people have multi-machine setups where they simply take machines 
> >> > out of the load balancer one at a time and upgrade at their leisure. 
> >> 
> >> Having not put node into production yet, the procedure you describe 
> sounds 
> >> far from "simple"; it sounds like an involved multi-step process with 
> many 
> >> opportunities for human error. Wouldn't automating it in some 
> >> officially-sanctioned way be good for everyone? 
> >> 
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