Nabble - Active4D

Re: Web Application Deployment

2009-07-07T08:27:11Z

David,

You'd want to use some sort of AJAX background process to check a status flag, instead of constantly refreshing the browser page.

Once the report is generated and available, then you can replace the "waiting" with "available" and a link to the file.

sincerely,
mehboob alam

Electricity is actually made up of extremely tiny particles called electrons, that you cannot see with the naked eye unless you have been drinking. - Dave Barry

----- Original Message ----
From: David Ringsmuth <davidinug@...>
To: active4d-dev@...
Sent: Monday, July 6, 2009 1:58:21 PM
Subject: [Active4d-dev] Web Application Deployment

Assuming HTML and Javascript, CSS, are the primary technologies, when
web-ifying a 4D Client application including the delivery of reports, what
is the preferred method for delivering to the client complex reports?

I can imagine a user interface where the report is defined and requested,
then a link is dynamically created pointing to the newly created PDF report,
and the browser refreshes until this PDF is "available". When it is
available the user selects it for viewing, etc.

I imagined processes created on a 4D server to handle the report creation.

Does that sound workable in an environment with hundreds of simultaneous web
users?

Thanks,

David

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Web Application Deployment

2009-07-06T10:58:21Z

Assuming HTML and Javascript, CSS, are the primary technologies, when
web-ifying a 4D Client application including the delivery of reports, what
is the preferred method for delivering to the client complex reports?

I can imagine a user interface where the report is defined and requested,
then a link is dynamically created pointing to the newly created PDF report,
and the browser refreshes until this PDF is "available". When it is
available the user selects it for viewing, etc.

I imagined processes created on a 4D server to handle the report creation.

Does that sound workable in an environment with hundreds of simultaneous web
users?

Thanks,

David

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: Woo-hoo!

2009-07-04T11:36:46Z

Hooray! Thanks for the update - congrats!

Best Regards,
- Clayton

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: Woo-hoo!

2009-07-04T09:44:49Z

> Active4D 4ever.

Forever is a long time...

> If the 4D stays for Deutsch' (german) a lot of problems with ajax
> and äöü will be gone.

Since Active4D v5 and 4D v11 use Unicode internally, character sets
are no longer a problem. You can use UTF-8 for all of your web content.

Regards,

Aparajita
www.aparajitaworld.com

"If you dare to fail, you are bound to succeed."
- Sri Chinmoy | www.srichinmoy.org

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: Woo-hoo!

2009-07-04T09:07:33Z

Good news! GREAT work!

String

On Jul 4, 2009, at 6:54 AM, Aparajita Fishman wrote:

> Friends,
>
> HUGE NEWS!! At long last, after months of toil and struggle, endless
> blood, sweat and tears, I have serving of web pages working! I still
> have a lot of coding and testing left to do, but the server and
> interpreter are working enough to run the following:
>
> <html>
> <head>
> <meta http-equiv="Content-Type" content="text/html;
> charset=utf-8" />
> <title>Active4D!</title>
> </head>
>
> <body>
> <div id="content">
> <%
> for ($i; 1; 7)
> if ($i = 7)
> write("<p>last</p>")
> else
> write("<p>not last</p>")
> end if
> %>
> <p><%= "Hello world! Je suis très content et élevé.
> शरी िचनमोइ. らまはけキレユム" %></p>
> <% end for %>
> </div>
> </body>
> </html>
>
> Note the luscious non-Latin (Devanagari and Japanese) text. My
> apologies to any Japanese readers, I just entered random characters
> -- hope it doesn't mean anything embarrassing.
>
> Like I said, while this is huge milestone, I still have a lot to do.
> So please don't be impatient.
>
> Regards,
>
> Aparajita
> www.aparajitaworld.com
>
> "If you dare to fail, you are bound to succeed."
> - Sri Chinmoy | www.srichinmoy.org
>
> _______________________________________________
> Active4D-dev mailing list
> Active4D-dev@...
> http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
> Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: Woo-hoo!

2009-07-04T08:59:03Z

Hello Aparajita

Active4D 4ever.
If the 4D stays for Deutsch' (german) a lot of problems with ajax and
äöü will be gone.
Every one knows the good feeling with the first "Hello world!"
message, on the screen. And I hope that this feelings help you in the
dark moments.

Regards, Oliver

Am 04.07.2009 um 15:54 schrieb Aparajita Fishman:

Re: Woo-hoo!

2009-07-04T08:44:17Z

Thanks for the update!

Congrats!

Yeaaaaaah!

:-D

-----Original Message-----
From: active4d-dev-bounces@... [mailto:active4d-dev-bounces@...] On Behalf Of Aparajita Fishman
Sent: Saturday, July 04, 2009 8:54 AM
To: active4d-dev@...
Subject: [Active4d-dev] Woo-hoo!

Friends,

HUGE NEWS!! .....

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: Woo-hoo!

2009-07-04T07:20:39Z

Congrats!
This is huge news!
I know you are a teetotaler, but let me open a virtual bottle of
bubbly to you!
I'll drink it myself and offer you a Perrier :-)

Can't wait to get my hands on it...

This made my day!

Cheers,

Alex

Re: Woo-hoo!

2009-07-04T06:59:23Z

Ok, I don't. :)

Am 04.07.2009 um 15:54 schrieb Aparajita Fishman:

> So please don't be impatient.

Greetings,
[4D-Consulting.com]eK, Wiesbaden (Germany)
Peter Schumacher
--------------------------------------------------------
Web: http://www.4D-Consulting.com/
FreeCall: 0800-434 636 7
Tel.: +49-611-9406.850 - Fax: +49-611-9406.744
4D-Consulting.com eK - Scharnhorststr. 36 - 65195 Wiesbaden
Member of the German Developer Network http://www.die4dwerkstatt.de

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Woo-hoo!

2009-07-04T06:54:08Z

Friends,

HUGE NEWS!! At long last, after months of toil and struggle, endless
blood, sweat and tears, I have serving of web pages working! I still
have a lot of coding and testing left to do, but the server and
interpreter are working enough to run the following:

<html>
<head>
<meta http-equiv="Content-Type" content="text/html;
charset=utf-8" />
<title>Active4D!</title>
</head>

<body>
<div id="content">
<%
for ($i; 1; 7)
if ($i = 7)
write("<p>last</p>")
else
write("<p>not last</p>")
end if
%>
<p><%= "Hello world! Je suis très content et élevé.
शरी िचनमोइ. らまはけキレユム" %></p>
<% end for %>
</div>
</body>
</html>

Note the luscious non-Latin (Devanagari and Japanese) text. My
apologies to any Japanese readers, I just entered random characters --
hope it doesn't mean anything embarrassing.

Like I said, while this is huge milestone, I still have a lot to do.
So please don't be impatient.

Regards,

Aparajita
www.aparajitaworld.com

"If you dare to fail, you are bound to succeed."
- Sri Chinmoy | www.srichinmoy.org

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: Pop up population, etc.

2009-07-03T07:09:22Z

> It's pretty lame, but I have not ever tried to use javascript or any
> other
> tools (AJAX; JSON; extjs) to be able to make a call back to fusebox
> from a
> <select> that would then return data to populate a second <select>
> on the
> same form.

There are plenty of examples out there on how to populate a select
dynamically using JSON data. A quick google search for "populate
select json" brings up lots.

As to how to return JSON data from Active4D/fusebox, there are several
examples in the a4d.json chapter of the docs. You can also look at the
demo site source code, I have a whole ExtJS Ajax-based demo there.

There is nothing magical about Ajax, as far as Active4D is concerned
it is just another request from a browser. You can return HTML or
JSON. If you return HTML, you can just replace the contents of an
element on the page. If you return JSON, you have to write javascript
code to iterate through the data and create the dom elements you want.

One important thing is to add the following code in all
fbx_layouts.a4d in circuits that might handle an Ajax fuseaction:

// Don't use layouts with Ajax
if (request info{"X-Requested-With"} = "XMLHttpRequest")
$fusebox{"layoutDir"} := ""
$fusebox{"layoutFile"} := ""
else
$fusebox{"layoutDir"} := "views/layouts" // or wherever your
layouts live
$fusebox{"layoutFile"} := "lay_main.a4d" // or whatever the
appropriate layout is
end if

Regards,

Aparajita
www.aparajitaworld.com

"If you dare to fail, you are bound to succeed."
- Sri Chinmoy | www.srichinmoy.org

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: v11 Update

2009-07-02T14:38:40Z

Thursday, July 2, 2009

> I haven't been sitting around and twiddling my thumbs!

Yeah, yeah, yeah. C'mon, admit it. You've been loafing around, feet up on
the sofa, drinking beer and watching reruns of Gilligan's Island while you
have the maid rake up those huge piles of renewal license checks piled up in
the front hallway that the mailman drops off every day in a wheelbarrow...

NOT!

Thank you again for all your hard work! You've got everybody rooting for you
for a successful rollout of the new version.

Even though you're under a ton of stress and worry trying to get this out
the door, at least stop to reflect on the fact that you have a _very_
successful product that people use and depend on. What you do _is_
important. It's a shame not everybody using 4D uses your product--but then
the same can be said for 4D itself.

Good luck, and remember to take a break every now and then! You deserve it!

(Then back to work! :-)

Cheers!

Michael Larue

-------------------

> From: Aparajita Fishman <aparajita@...>
> Reply-To: Active4D Developer Discussion List <active4d-dev@...>
> Date: Thu, 02 Jul 2009 16:09:39 -0400
> To: active4d-dev@...
> Subject: Re: [Active4d-dev] v11 Update
>
>> it does wonders for morale to see that there is progress
>> being made, and that an end is in sight.
>
> I take my commitment very seriously. I haven't been sitting around and
> twiddling my thumbs!
>
> Regards,
>
> Aparajita
> www.aparajitaworld.com
>
> "If you dare to fail, you are bound to succeed."
> - Sri Chinmoy | www.srichinmoy.org
>
> _______________________________________________
> Active4D-dev mailing list
> Active4D-dev@...
> http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
> Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: v11 Update

2009-07-02T13:09:39Z

> it does wonders for morale to see that there is progress
> being made, and that an end is in sight.

I take my commitment very seriously. I haven't been sitting around and
twiddling my thumbs!

Regards,

Aparajita
www.aparajitaworld.com

"If you dare to fail, you are bound to succeed."
- Sri Chinmoy | www.srichinmoy.org

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: v11 Update

2009-07-02T12:54:52Z

The new licensing plan sounds fine, Aparajita.

Also, thank you for sending out the updates - even when you don't have
exact dates, it does wonders for morale to see that there is progress
being made, and that an end is in sight.

Best Regards,
- Clayton
_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: v11 Update

2009-07-02T10:05:32Z

I agree about the licensing.

Considering the benefit, the cost of A4D has ALWAYS been
straightforward to justify.

Thanks,

Michael Check

On Thu, Jul 2, 2009 at 4:33 AM, Peter Jakobsson<lists@...> wrote:

>
> On 2 Jul 2009, at 00:39, Aparajita Fishman wrote:
>
>> I am killing myself to get this thing done -- 7 days a week, 6-10 hours a
>> day. It's bankrupting me.
>
> I have a lot of sympathy for this situation having worked on a few vertical
> market projects - it's not much fun and can be a lot of stress.
>
> I sincerely hope you get the appropriate return for your labours and I will
> also continue to promote the product where I can. I do not expect any
> complaints about the licensing decisions from my customers.
>
> Peter
>
> _______________________________________________
> Active4D-dev mailing list
> Active4D-dev@...
> http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
> Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/
>

Pop up population, etc.

2009-07-02T07:00:41Z

Hi all,
It's pretty lame, but I have not ever tried to use javascript or any other
tools (AJAX; JSON; extjs) to be able to make a call back to fusebox from a
<select> that would then return data to populate a second <select> on the
same form. I've always worked around this deficiency in my toolkit/knowledge
by making my clients make the first <select>, then posting and returning
with the second <select> on a new page. It's really, really lame!! Can
someone point to the means of incorporating the necessary tools into the
Active4D/Fusebox environment, please? It's way past time I do this, but I
don't have time right now of changing the environment drastically. It would
greatly help if I could get some config info as well as some sample code to
make the calls and receive the data back.

TIA,
Mike Vogt
Willsub Technical Support

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: [ANN] Licensing and support changes

2009-07-02T07:00:11Z

>
> Is there a way we can find
> out when the yearly renewal for IP based deployment will expire so
> we can
> just pay the $130.00 and not $700?

Yes, I will send out renewal notices starting a few weeks in advance.

Regards,

Aparajita
www.aparajitaworld.com

"If you dare to fail, you are bound to succeed."
- Sri Chinmoy | www.srichinmoy.org

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: [ANN] Licensing and support changes

2009-07-02T06:49:22Z

Aparajita,
I'm fine with the pricing change (reversion). Is there a way we can find
out when the yearly renewal for IP based deployment will expire so we can
just pay the $130.00 and not $700?

Mike Vogt
Willsub Technical Support

> -----Original Message-----
> From: active4d-dev-bounces@...
> [mailto:active4d-dev-bounces@...] On Behalf Of
> Aparajita Fishman
> Sent: Thursday, July 02, 2009 9:32 AM
> To: active4d-dev@...
> Subject: [Active4d-dev] [ANN] Licensing and support changes
>
> Hi all,
>
> As of this morning, the pricing, licensing and support
> policies for Active4D have changed. In short, I am more or
> less going back to the way things were a year ago.
>
> PRICING
> Pricing has reverted to the old scheme: $700 per deployment
> for the first year, $130 per deployment per year thereafter.
>
> LICENSING
> Each deployment license must be renewed yearly in order to
> qualify for IP address changes.
>
> SUPPORT
> The Premium Support forums are now locked for posting. All
> support will move back to the mailing list. I feel this will
> be much better for everyone. Those who purchased Premium
> Support within the last year will be compensated in some way,
> most likely through some sort of pro- rated discount on your
> next license renewal.
>
> Sorry if the changes causes any confusion. The current system
> turned out to be unworkable and financially unsustainable. A
> synopsis of the new licensing and support policies can be found at:
>
> http://www.aparajitaworld.com/site/products/Active4D/licensing.php
>
> Thank you for your patience and for your continued support!
>
> Regards,
>
> Aparajita
> www.aparajitaworld.com
>
> "If you dare to fail, you are bound to succeed."
> - Sri Chinmoy | www.srichinmoy.org
>
> _______________________________________________
> Active4D-dev mailing list
> Active4D-dev@...
> http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
> Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

[ANN] Licensing and support changes

2009-07-02T06:32:18Z

Hi all,

As of this morning, the pricing, licensing and support policies for
Active4D have changed. In short, I am more or less going back to the
way things were a year ago.

PRICING
Pricing has reverted to the old scheme: $700 per deployment for the
first year, $130 per deployment per year thereafter.

LICENSING
Each deployment license must be renewed yearly in order to qualify for
IP address changes.

SUPPORT
The Premium Support forums are now locked for posting. All support
will move back to the mailing list. I feel this will be much better
for everyone. Those who purchased Premium Support within the last year
will be compensated in some way, most likely through some sort of pro-
rated discount on your next license renewal.

Sorry if the changes causes any confusion. The current system turned
out to be unworkable and financially unsustainable. A synopsis of the
new licensing and support policies can be found at:

http://www.aparajitaworld.com/site/products/Active4D/licensing.php

Thank you for your patience and for your continued support!

Regards,

Aparajita
www.aparajitaworld.com

"If you dare to fail, you are bound to succeed."
- Sri Chinmoy | www.srichinmoy.org

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: v11 Update

2009-07-02T02:33:51Z

On 2 Jul 2009, at 00:39, Aparajita Fishman wrote:

> I am killing myself to get this thing done -- 7 days a week, 6-10
> hours a day. It's bankrupting me.

I have a lot of sympathy for this situation having worked on a few
vertical market projects - it's not much fun and can be a lot of stress.

I sincerely hope you get the appropriate return for your labours and
I will also continue to promote the product where I can. I do not
expect any complaints about the licensing decisions from my customers.

Peter

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: v11 Update

2009-07-02T02:26:05Z

Hi Aparajita,

be assured you have my full support for this move!

I already told my clients that the upgrade cost will be substantial
and they did not so much as flinch, to them what you call high upgrade
costs are mere peanuts.

I am pret ysure you will get some flak on the nug for this move, but
99.5% of those complaining are people who would not ever have
considered buying a4d in the furst place, but sme people cannot let an
oportunity for complains pass by.

All the best from us and I for my part will go on promoting a4d
wherever I can.

Oh, I also have 2 potential sales of my application WITH the web
interface for late july. They did not yet sign but we have an LOI.

I know what that is worth when push comes to shove, but as you know I
am an undeterrable optimistic!

Cheers

Alex

>> Would you
>> mind giving the list an update on how the work is going?
>
> Since you ask...
>
> I am killing myself to get this thing done -- 7 days a week, 6-10
> hours a day. It's bankrupting me. I have spent 6 months working on
> it with no significant income. As a result I had to borrow a ton of
> money just to keep me going. If it weren't for the kindness of one
> client who has partially funded development, I would have burned
> through the loan as well.
>
> When will it be done? I wish I knew. The end is in sight, but I have
> no idea how long it will take to get there, and after so many
> inaccurate predictions about the release date, I will not make any
> more.
>
> The pricing and support changes I made last year will be reverted --
> it was an experiment that failed. I will go back to a $700 first
> year cost, $130 per-license renewals, and support via the mailing
> list. I haven't decided on the upgrade cost yet, but it will be
> significantly more than the $130 renewal cost.
>
> Regards,
>
> Aparajita
> www.aparajitaworld.com
>
> "If you dare to fail, you are bound to succeed."
> - Sri Chinmoy | www.srichinmoy.org
>
> _______________________________________________
> Active4D-dev mailing list
> Active4D-dev@...
> http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
> Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: v11 Update

2009-07-01T15:39:33Z

> Would you
> mind giving the list an update on how the work is going?

Since you ask...

I am killing myself to get this thing done -- 7 days a week, 6-10
hours a day. It's bankrupting me. I have spent 6 months working on it
with no significant income. As a result I had to borrow a ton of money
just to keep me going. If it weren't for the kindness of one client
who has partially funded development, I would have burned through the
loan as well.

When will it be done? I wish I knew. The end is in sight, but I have
no idea how long it will take to get there, and after so many
inaccurate predictions about the release date, I will not make any more.

The pricing and support changes I made last year will be reverted --
it was an experiment that failed. I will go back to a $700 first year
cost, $130 per-license renewals, and support via the mailing list. I
haven't decided on the upgrade cost yet, but it will be significantly
more than the $130 renewal cost.

Regards,

Aparajita
www.aparajitaworld.com

"If you dare to fail, you are bound to succeed."
- Sri Chinmoy | www.srichinmoy.org

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

v11 Update

2009-06-30T05:18:46Z

Hi Aparajita,

It's been a little over a month since the last v11 message. Would you
mind giving the list an update on how the work is going? Any major
hang-ups or trouble points? Any estimates on a beta?

We're all chomping at the bit to do some beta testing - thanks!

Best Regards

- Clayton

Clayton L. Donahue

The Healthcare Management Council, Inc.

cdonahue@... <mailto:cdonahue@...>

(781) 449-5287

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: A4D scalability

2009-06-25T13:53:31Z

Doug Hall wrote:
> On Wed, Jun 17, 2009 at 9:06 AM, Mike Vogt<mv@...> wrote:
>
>> We have Apache running in from of 4D/Active4D. It allows some static
>> traffic to be handled by Apache...
>>
>
> We do this too. We're using Apache as a reverse proxy. We're using 4D
> Client as the A4D web server.
I can't remember if it has been mentioned in this thread, but another
advantage of using Apache in front of A4D, is that it can function as a
security filter. If you know what your A4D GET requests should look
like, you can develop a whitelist in your rewrite rules that will only
allow what appear to be valid requests to hit A4D. This shelters your
application from the majority of bot and penetration tool traffic.

-- Brad Perkins
_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: A4D scalability

2009-06-25T13:28:07Z

On Wed, Jun 17, 2009 at 9:06 AM, Mike Vogt<mv@...> wrote:
> We have Apache running in from of 4D/Active4D. It allows some static
> traffic to be handled by Apache...

We do this too. We're using Apache as a reverse proxy. We're using 4D
Client as the A4D web server.
_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: A4D scalability

2009-06-25T12:58:04Z

As an addendum to Alex's email I feel I should explain a few of
scripts and CGIs that kept the system running behind the scenes.

4D Client
=======
Each copy of 4D Client was launched, and managed, with a Perl script.
This script did the following:

1. Polls the 4D server's database port and if there was a positive
response launch 4D Client.
2. After launching the 4D client the script would shift into a
different mode where it would poll the 4D Client's internal web port
for a simple active4D file, but one the did include a few lines of
embedded a4d that did nothing but return some standard text. ( I think
the text was something in the region of "The System is operating".)
The first positive response that matched the text would indicate that
the system is fully operational and a CGI on the gateway server was
called that added this server into the server pool list.

The script would then poll the server at a specified interval checking
the returned text. If an error occurred, or the text did not match
then this was considered to be grounds to remove this server from the
server pool. So a server remove CGI was called on the gateway server
that removed this from the server pool and then Perl's Win32 support
was used to Force Quit the 4D client and the process resumed from 1.
above.

Web Server in front of 4D Client
=======================

On the Web server in front of the 4D client it was setup as standard
to Proxy requests through to the 4D Client but a custom CGI was
attached to the 503 error handler. This error handler did 2 things:
1. When called it also called the removeCGI on the gateway server.
2. Redirected the user back to the gateway server so it can reselect
another server from the pool.

Gateway Server
============

The Add and Remove CGIs mentioned above: these two seperate CGIs add
or remove the specified server a mod_rewrite random map. These CGIs
were protected in that they could not be called from the internet.

Incoming requests, that don't have a server assignment cookie set call
a mod_rewrite random map where a server prefix is randomly selected
from the map created with the add and remove CGIs above. If there are
no servers in the map then default server is "error" and this causes,
later on in the mod_rewrite setup, the request to be redirected to a
standard error page.

Now if there is a server assignment cookie, either set above, or from
an external request the prefix is placed into another mod_rewrite map,
this time not a random map, and the actual internal server IP address
and port is returned. These are then used to proxy the request to the
actual server than the prefix addresses.

A final CGI was also present on the gateway server, this CGI allowed
us to see the status of the 4D Server, the 4D Clients and the Web
Servers on the Client machine. It also presented us with the ability
to call the Add/Remove CGIs for arbitary machines. ( This script was,
of course, password protected.) In the days before full xhtml browsers
this was designed as a WML page and an extremely light html page
meaning we could, and did, manage the server from our mobile phones.

Michael Bond
_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

sendFuseaction

2009-06-20T13:11:57Z

I am in that place of feeling like I am missing something:

I want to do a simple list of related many records at the bottom of a
edit form (e.g. line items on an invoice). It is simple enough to
build the form but it also seems the sendFuseaction would be a more
elegant strategy, in part because I want to have the many records link
to another edit form.

So far it seems that if I put the sendFuseaction in the dsp_edit of
the one table,the nested listing circuit "replaces" the home circuit.
If I put the sendFuseaction in the dsp_list calling the dsp_edit of
the one table above the list, the dsp_edit "replaces" the list but
then lists the edit below the footer.

I am using this syntax:
$fusebox->sendFuseaction("project.edit"; $projectAttrs)

$fusebox{"nestLayouts"} only seems to duplicate headers etc if set to
true

Active4D 4.5
4D 2004 with 4D web server
OSX 10.5.7

Any help is greatly appreciated.

String Hamister
Interface Artistry

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: A4D scalability

2009-06-20T11:43:08Z

IIS?

Life's too short...

I did work with IIS years ago, using that CGI PlugIn for IIS ages ago...

The experience was so bad that I have been cured for a lifetime from
ever again touching IIS!

You cannot pay me enough to force me to ever again work with IIS and
whenever I have to Install a 4D Webserver System, I do a minimum
Install of Server 2003 and set up a wonderful, secure and fast
ApacheMysqlPhp server that does all I need without any glitches!

> So far.. no IIS references yet.
>
> sincerely,
> mehboob alam
>
>
>
>
> Electricity is actually made up of extremely tiny particles called
> electrons, that you cannot see with the naked eye unless you have
> been drinking. - Dave Barry
>
>
>
> ----- Original Message ----
> From: Mehboob Alam <media4d@...>
> To: active4d-dev@...
> Sent: Wednesday, June 17, 2009 9:09:03 AM
> Subject: Re: [Active4d-dev] A4D scalability
>
>
> It also helps to differentiate the web-engine underneath A4D..
>
> 1- 4D Web Extension (Server)
> 2- 4D Web Extension (Client)
> 3- ITK
> 4- NTK
> 5- Apache front-end
>
> It would help the group if we collected best-practices into the wiki.
> Anyone running IIS or Apache on Windows?
>
> sincerely,
> mehboob alam
>
>
>
>
> Electricity is actually made up of extremely tiny particles called
> electrons, that you cannot see with the naked eye unless you have
> been drinking. - Dave Barry
>
>
>
> ----- Original Message ----
> From: David Ringsmuth <davidinug@...>
> To: active4d-dev@...
> Sent: Tuesday, June 16, 2009 5:05:40 PM
> Subject: [Active4d-dev] A4D scalability
>
> If you are using 4D/A4D in any configuration that has multiple A4D web
> servers serving the same domain on the same database for volume
> reasons,
> please let me know.
>
> Thanks,
> David Ringsmuth
>
> _______________________________________________
> Active4D-dev mailing list
> Active4D-dev@...
> http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
> Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/
>
>
>
>
> _______________________________________________
> Active4D-dev mailing list
> Active4D-dev@...
> http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
> Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/
>
>
>
>
> _______________________________________________
> Active4D-dev mailing list
> Active4D-dev@...
> http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
> Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: A4D scalability

2009-06-19T10:39:40Z

So far.. no IIS references yet.

sincerely,
mehboob alam

Electricity is actually made up of extremely tiny particles called electrons, that you cannot see with the naked eye unless you have been drinking. - Dave Barry

----- Original Message ----
From: Mehboob Alam <media4d@...>
To: active4d-dev@...
Sent: Wednesday, June 17, 2009 9:09:03 AM
Subject: Re: [Active4d-dev] A4D scalability

It also helps to differentiate the web-engine underneath A4D..

1- 4D Web Extension (Server)
2- 4D Web Extension (Client)
3- ITK
4- NTK
5- Apache front-end

It would help the group if we collected best-practices into the wiki.
Anyone running IIS or Apache on Windows?

sincerely,
mehboob alam

Electricity is actually made up of extremely tiny particles called electrons, that you cannot see with the naked eye unless you have been drinking. - Dave Barry

----- Original Message ----
From: David Ringsmuth <davidinug@...>
To: active4d-dev@...
Sent: Tuesday, June 16, 2009 5:05:40 PM
Subject: [Active4d-dev] A4D scalability

If you are using 4D/A4D in any configuration that has multiple A4D web
servers serving the same domain on the same database for volume reasons,
please let me know.

Thanks,
David Ringsmuth

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: A4D scalability

2009-06-17T10:23:45Z

Alexander,

... Guess I will have to type a bit :-)...

THANK YOU for this post.

David Ringsmuth

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: A4D scalability

2009-06-17T08:31:12Z

Guess I will have to type a bit :-)

In our setup we were using 4D 2003 with the ITK Webserver (modified to
handle partial requests, continuus requests, keep-alive, etc.).

Although we never used the full setup as we did not need it, here is
the basic setup we had:

THE INTERNETS
----------------------------------------------------------------------------
|
|
|
Gateway |
| Linux System with Apache
2.2 |
----------------------------------------------------------------------------
| |
| |
| Public HTTP Server 1 | Public HTTP Server n | Private HTTP
Server |
| 4D 2003 / Apache 2.2 | 4D 2003 / Apache 2.2 | 4D 2003 / Apache
2.2 |
----------------------------------------------------------------------------
|
|
| 4D Server
2003 |
| on Windows 2000
WS |
----------------------------------------------------------------------------

Details

Gateway:

This machine ran Apache 2.2 and some Linux (RedHat I think it was).

Apache had rewrite rules to do a round robin Load Sharing of as many
public
HTTP Cients as you wanted, hiding them from the user, so no w1, ww2
etc.

The round robin list ws automatically handled by apach, if on http
server sent an error (Bad Gateway or other) it would automatically be
removed from the list. The Script would then poll the client every 60
Seconds to see if he was online again to then put him back in the list.

On the Client a script would execute killing hte 4D Client process and
restarting it.

The system was designed to run on a DELL blade System with up to 6
blades. The private HTTP Server was for Backoffice and background task.

The biggest load we ever had was some 15.000 hits per hour, and using
this setup we had an uptime service level of 99.74 % (externally
Tracked with RedAlert) once the teething problems were solved (2-3
months), the remaining .26 were scheduled downtimes. The individual
clients only got to 96% but due to the automatic recovery system that
did not matter much.

Sadly we never got to gear it up to full glory, as the company we did
this for went bankrupt and their owner ran with whatver money was left
to oen a cafe on Crete...

The whole setup was scrapped and sold in the bankruptcy.

A simple, 1-machne version fo the whole system is still operational.

I am currently working on findng a new customer for the system in
order to bring it up to current versions.

In the 18 Months we had the system running it never failed us and only
ran at a fraction of its potential.

Basically there were only 2 points of failiure left:

The Linux Gateway which, when we swithced it off, had an uptime count
of 690 days!

The 4D Server, this one had NO stored procedures nd ran nothing but 4D
Server, we had one crash of it early on in the project, we never found
out why ...

The server scripting was all done by Michael Bond.

Cheers,

Alex

> If you are using 4D/A4D in any configuration that has multiple A4D web
> servers serving the same domain on the same database for volume
> reasons,
> please let me know.
>
> Thanks,
> David Ringsmuth
>
> _______________________________________________
> Active4D-dev mailing list
> Active4D-dev@...
> http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
> Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: A4D scalability

2009-06-17T08:23:04Z

Thanks much for your responses describing scalability (all).

I have not yet set up an Apache web server.

It appears that Apache web server has built-in load balancing for back-end
web servers:
http://httpd.apache.org/docs/2.2/mod/mod_proxy_balancer.html

This should satisfy my client's concerns for scalability.
David Ringsmuth

-----Original Message-----
From: active4d-dev-bounces@...
[mailto:active4d-dev-bounces@...] On Behalf Of David
Ringsmuth
Sent: Tuesday, June 16, 2009 4:06 PM
To: active4d-dev@...
Subject: [Active4d-dev] A4D scalability

If you are using 4D/A4D in any configuration that has multiple A4D web
servers serving the same domain on the same database for volume reasons,
please let me know.

Thanks,
David Ringsmuth

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: A4D scalability

2009-06-17T07:20:32Z

Similar setup here'

Apache on Windows 2000 Server
4D Client 2004.7 Running on Windows 2003 Server
4d Server 2004.3 Running on Windows 2003 Server

- Static content is served by Apache
- product images served by dedicated image server also running
Apache (auto-updated by another 4D client which extracts the images
from the 4D data and writes them twice a day to the OS desktop)
- https requests directed straight to 4D, bypassing Apache (because
we couldn't figure out how to do it by Apache yet)
- maintenance, web admin tasks, twice daily product uploads and
order downloads done on yet another 4D Client web server (also
running Apache)

Altogether, to make the whole system work - 3 x Web servers running
on 4D Client machines, each running an instance of Apache.Active 4D,
each with an independent public IP address, but all accessing the
same data.

Peter

On 17 Jun 2009, at 16:12, Brad Perkins wrote:

> Similar setup here.
>
> Apache on Mac OS 10.4 Server
> 4D Client 2003 running NTK as the web server
> 4D Server 2003 running on Windows 2003 Server

_______________________________________________
Active4D-dev mailing list
Active4D-dev@...
http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/

Re: A4D scalability

2009-06-17T07:12:31Z

Similar setup here.

Apache on Mac OS 10.4 Server
4D Client 2003 running NTK as the web server
4D Server 2003 running on Windows 2003 Server

-- Brad Perkins

Mike Vogt wrote:

> We have Apache running in from of 4D/Active4D. It allows some static
> traffic to be handled by Apache, and allows some php scripts to do some
> document handling for us, also alleviating 4D from that load.
>
> Sincerely,
> Mike Vogt
> Willsub Technical Support
>
>
>
>
>> -----Original Message-----
>> From: active4d-dev-bounces@...
>> [mailto:active4d-dev-bounces@...] On Behalf Of
>> Mehboob Alam
>> Sent: Wednesday, June 17, 2009 9:09 AM
>> To: active4d-dev@...
>> Subject: Re: [Active4d-dev] A4D scalability
>>
>>
>> It also helps to differentiate the web-engine underneath A4D..
>>
>> 1- 4D Web Extension (Server)
>> 2- 4D Web Extension (Client)
>> 3- ITK
>> 4- NTK
>> 5- Apache front-end
>>
>> It would help the group if we collected best-practices into the wiki.
>> Anyone running IIS or Apache on Windows?
>>
>> sincerely,
>> mehboob alam
>>
>>
>>
>>
>> Electricity is actually made up of extremely tiny particles
>> called electrons, that you cannot see with the naked eye
>> unless you have been drinking. - Dave Barry
>>
>>
>>
>> ----- Original Message ----
>> From: David Ringsmuth <davidinug@...>
>> To: active4d-dev@...
>> Sent: Tuesday, June 16, 2009 5:05:40 PM
>> Subject: [Active4d-dev] A4D scalability
>>
>> If you are using 4D/A4D in any configuration that has
>> multiple A4D web servers serving the same domain on the same
>> database for volume reasons, please let me know.
>>
>> Thanks,
>> David Ringsmuth
>>
>> _______________________________________________
>> Active4D-dev mailing list
>> Active4D-dev@...
>> http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
>> Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/
>>
>>
>>
>>
>> _______________________________________________
>> Active4D-dev mailing list
>> Active4D-dev@...
>> http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
>> Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/
>>
>
> _______________________________________________
> Active4D-dev mailing list
> Active4D-dev@...
> http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
> Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/
>
>

Re: A4D scalability

2009-06-17T07:06:25Z

We have Apache running in from of 4D/Active4D. It allows some static
traffic to be handled by Apache, and allows some php scripts to do some
document handling for us, also alleviating 4D from that load.

Sincerely,
Mike Vogt
Willsub Technical Support

> -----Original Message-----
> From: active4d-dev-bounces@...
> [mailto:active4d-dev-bounces@...] On Behalf Of
> Mehboob Alam
> Sent: Wednesday, June 17, 2009 9:09 AM
> To: active4d-dev@...
> Subject: Re: [Active4d-dev] A4D scalability
>
>
> It also helps to differentiate the web-engine underneath A4D..
>
> 1- 4D Web Extension (Server)
> 2- 4D Web Extension (Client)
> 3- ITK
> 4- NTK
> 5- Apache front-end
>
> It would help the group if we collected best-practices into the wiki.
> Anyone running IIS or Apache on Windows?
>
> sincerely,
> mehboob alam
>
>
>
>
> Electricity is actually made up of extremely tiny particles
> called electrons, that you cannot see with the naked eye
> unless you have been drinking. - Dave Barry
>
>
>
> ----- Original Message ----
> From: David Ringsmuth <davidinug@...>
> To: active4d-dev@...
> Sent: Tuesday, June 16, 2009 5:05:40 PM
> Subject: [Active4d-dev] A4D scalability
>
> If you are using 4D/A4D in any configuration that has
> multiple A4D web servers serving the same domain on the same
> database for volume reasons, please let me know.
>
> Thanks,
> David Ringsmuth
>
> _______________________________________________
> Active4D-dev mailing list
> Active4D-dev@...
> http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
> Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/
>
>
>
>
> _______________________________________________
> Active4D-dev mailing list
> Active4D-dev@...
> http://mailman.aparajitaworld.com/mailman/listinfo/active4d-dev
> Archives: http://mailman.aparajitaworld.com/archive/active4d-dev/