[Info-vax] How would you load balance excess webserver traffic between multiple OpenVMS servers?

[D W]

On Monday, January 11, 2021 at 10:58:50 AM UTC-5, Stephen Hoffman wrote:
> On 2021-01-11 12:12:10 +0000, D W said:
> 
> > There are MULTIPLE different approaches to doing this. Most involve 
> > HTTP (web) cookies and may involve DNS round robin load balancing or 
> > load balancers.
> > 
> > But how would this be accomplished using Apache or another web package 
> > on OpenVMS?
> 
> If locked into that configuration, with mod_proxy_balancer most likely. 
> Same as with Apache elsewhere.
> 
> > Would you use the same approach?
> 
> mod_proxy_balancer or reverse-proxies or redirects or such? Prolly not. 
> Depends. There's a whole lot of necessary detail here. Detail that's 
> not yet been referenced.
> 
> > Also if you house a DB like RDB on a separate OpenVMS server, what 
> > would be the fastest connect solution to obtain the fastest data 
> > transport rates between the DB server and other web servers?
> 
> That depends. Sharing is a potential option, as can be replacing Rdb 
> with something faster; an in-memory database, for instance. Or using a 
> CDN, which can provide the bandwidth and DDoS protections and 
> geographic distribution, among other benefits.
> 
> Other options include clustering and fibre channel and moving Rdb 
> locally (which'll increase lock traffic), or moving to the fastest 
> available network between the web servers and the database server.
> 
> This also involves performance and trend modeling, and likely involves 
> replacing HDDs with SSDs and related efforts on the servers, as I'd 
> expect a heavier load between Rdb and its database storage than between 
> Rdb and the database client web servers.
> 
> If you're thinking about a Parler-class app for instance, there are 
> already some discussions of what's involved there that are going on 
> else-network and which you may want to review—even if you're not 
> re-hosting Parler, the problems are broadly similar at scale.
> 
> 
> 
> -- 
> Pure Personal Opinion | HoffmanLabs LLC

so are we saying here that decnet over a fibre channel connection is the fastest solution?