On Jan 28, 2020, at 3:44 PM, Tom Benedict wrote:
> Tim, is this an automatic failover or do you have to down the clients and
> make a quick config change or relaunch with a different 4DLink file?
Hi Tom,
It is currently a manual process to switch to the mirror. But it is certainly
something
Hi, thanks to all for the input.
Regards,
Ronnie
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I use nginx running on windows from this source
http://nginx-win.ecsds.eu/
Combine this with nssm.exe and you can have nginx sitting behind the
firewall acting as a proxy or load balancer for 4D server and or 4D clients.
I use 4d Clients to serve different websites but using the same 4D server.
.
Best,
Steve
-Original Message-
From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of John DeSoi via 4D_Tech
Sent: Tuesday, January 28, 2020 6:06 PM
To: 4D iNug Technical <4d_tech@lists.4d.com>
Cc: John DeSoi
Subject: Re: 4D Application as a 3-tier System
NGINX is al
NGINX is also a popular option as a load balancer. Free and open source.
https://docs.nginx.com/nginx/admin-guide/web-server/reverse-proxy/
It can also proxy non-http protocols. I wonder if the silly "must be 3 tier"
requirement could be satisfied by putting NGINX in in between 4D Client and 4D
> 1. What options are available?
> 2. How it works with 4D?
> 3. Has anyone done this as an OEM and what issues/obstacles have you run
> into?
>4. and so forth...
... As was said before a load balancer... it is a device that is put in front
of a pool of machines. It balances the
For a load balancer, you shouldn't care. There's nothing special about 4D's
web server.
> On Jan 28, 2020, at 4:54 PM, Stephen J. Orth via 4D_Tech
> <4d_tech@lists.4d.com> wrote:
>
> As an OEM, I do not get to dictate how the network is configured, or what
> hardware can/cannot be purchased.
I don't manage them, but we use A10 load balancers for our 4 4D Client
instances running as virtual machines that serve web service requests from our
website and a variety of other non-4D applications. The 4D Clients are running
an HTTP server based on NTK (very very similar to the sample HTTP
, 2020 3:48 PM
To: s.o...@the-aquila-group.com; 4D iNug Technical <4d_tech@lists.4d.com>
Subject: Re: 4D Application as a 3-tier System
Steve Orth writes:
> 1. What options are available? -> Many routers and server OS have
> round-robin load balancing built in. Bigger hardware d
;
> E-Mail: s.o...@the-aquila-group.com
> *
>
> -Original Message-
> From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of Jeffrey Kain via
> 4D_Tech
> Sent: Tuesday, January 28, 2020 3:29 PM
> To: 4D iNug Techn
>To complete the fault tolerance system, we have another Amazon instance that
>is running another copy of 4D Server as a mirror. Production 4D Server sends
>log files to Mirror 4D Server every 10 minutes. If Production 4D Server goes
>down, we can switch to Mirror 4D Server and have the 4D
On Jan 28, 2020, at 3:22 PM, Stephen J. Orth
wrote:
> I've always wondered, when people recommend using 4D Client as a web server,
> how you go about load balancing. It's one thing if your user base is small,
> however when you have 50-100 users, you cannot send them all to one 4D Client
>
Tech <4d_tech-boun...@lists.4d.com> On Behalf Of Tim Nevels via
> 4D_Tech
> Sent: Tuesday, January 28, 2020 3:13 PM
> To: 4d_tech@lists.4d.com
> Cc: Tim Nevels
> Subject: Re: 4D Application as a 3-tier System
>
>
> If a “3 tier system” a hard requirement, then introdu
sts.4d.com> On Behalf Of Jeffrey Kain via
4D_Tech
Sent: Tuesday, January 28, 2020 3:29 PM
To: 4D iNug Technical <4d_tech@lists.4d.com>
Cc: Jeffrey Kain
Subject: Re: 4D Application as a 3-tier System
You stick a load balancer in front as the public-facing IP and let the load
balancer,
You stick a load balancer in front as the public-facing IP and let the load
balancer, uh, balance the load.
> On Jan 28, 2020, at 4:22 PM, Stephen J. Orth via 4D_Tech
> <4d_tech@lists.4d.com> wrote:
>
> So, what is the solution for balancing multiple 4D Client web servers?
53590
E-Mail: s.o...@the-aquila-group.com
*
-Original Message-
From: 4D_Tech <4d_tech-boun...@lists.4d.com> On Behalf Of Tim Nevels via 4D_Tech
Sent: Tuesday, January 28, 2020 3:13 PM
To: 4d_tech@lists.4d.com
Cc: Tim Nevels
Subject:
On Jan 28, 2020, at 2:00 PM Ronnie wrote:
> I have an application running in a hospital environment for a number of years.
> In the light of the increasing awareness of data security, the client’s IT in
> their own words are looking at "redoing the whole 4dcis database onto 2 or 3
> tier system
Ronnie,
We have done several options which others have mentioned:
1. We moved certain aspects of our system into a browser for the front end,
using REST calls to access the data.
2. We have moved certain aspects of the system out of the 4D database into
either MySQL or SQL Server.
Both of
Simple solution would be to decide which data needed protection. Move that
into Mysql or Postgres and use Pluggers Mysql plugin to access the data.
Regards
Paul
--
Sent from: http://4d.1045681.n5.nabble.com/4D-Tech-f1376241.html
As you already know a textbook three tier application would be web based…
HTML/Javascript/CSS - Front End
PHP/JS/ASP… many others - Middleware
MySQL, Oracle etc - Backend
The key points being:
Front end handles the presentation
Middle ware handles the business logic and application flow talks
Thanks
Il 05/10/2016 11:57, Benedict, Tom ha scritto:
Ferdinando asks:
>
>Exist one command that i can to use for understand if i use a stand alone application or a
server connection?
>
Check out the Application type command.
http://www.4d.com/docs/CMU/CMU00494.HTM
I believe that a
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