× The internal search function is temporarily non-functional. The current search engine is no longer viable and we are researching alternatives.
As a stop gap measure, we are using Google's custom search engine service.
If you know of an easy to use, open source, search engine ... please contact support@midrange.com.


  1.  Home
  2. WEB400
  3. October 2015

Re: Hosting a Large Number of Node Apps on the IBM i

Henrik,

You make a valid point. If you want to run a lot of the PHP-based social media apps out there, it makes more sense to run Zend or Apache.

I'm not interested in this scenario for my workplace. We're not looking for PHP-based social media apps. We're looking to do things like replace 5250 green screens (going forward), developing custom apps for our SharePoint employee portal, and developing custom web and mobile apps for our employees to perform their business processes.

I expect Zend, Apache, IIS, WebSphere and NGiNX would all be capable of meeting our needs for web servers.

Thanks,

Kelly Cookson
IT Project Leader
Dot Foods, Inc.
1.217.773.4486 ext. 12676
kcookson@xxxxxxxxxxxx

-----Original Message-----
From: WEB400 [mailto:web400-bounces@xxxxxxxxxxxx] On Behalf Of Henrik Rützou
Sent: Wednesday, October 14, 2015 12:43 PM
To: Web Enabling the IBM i (AS/400 and iSeries)
Subject: Re: [WEB400] Hosting a Large Number of Node Apps on the IBM i

Kelly

I wouldn't put to much into that numbers. Most private homepages on the net runs PHP and apache if they run free CMS like Wordpress or others.



On Wed, Oct 14, 2015 at 7:39 PM, Henrik Rützou <hr@xxxxxxxxxxxx> wrote:

Hi Aaron

and my apologies if I was a little rough on you ;-)

On Wed, Oct 14, 2015 at 7:34 PM, Aaron Bartell
<aaronbartell@xxxxxxxxx>
wrote:

Hi Henrik,

My apologies if I stated libuv was part of the Javascript language.
Other than that, yes, it appears we are on the same page now.


Aaron Bartell
litmis.com - Services for open source on IBM i


On Wed, Oct 14, 2015 at 12:19 PM, Henrik Rützou <hr@xxxxxxxxxxxx> wrote:

Aaron

so we agree, libev/libuv isn't part of the javascript language but
is a
C
program that runs under V8 excluselive on servers under node.js as
a npm and it may be multi-threaded just as a call to a java class
may run multi-threaded if call from an ILE (RPG) program.



On Wed, Oct 14, 2015 at 7:07 PM, Aaron Bartell
<aaronbartell@xxxxxxxxx>
wrote:

Hi Henrik,

Agreed, the Javascript runtime is single threaded. It is libuv
that
makes
threads happen. Here is an excerpt from the URL I forwarded
earlier**.

"How the I/O is run in the background is not of our concern, but
due
to
the
way our computer hardware works, with the thread as the basic
unit of
the
processor, libuv and OSes will usually run background/worker
threads
and/or
polling to perform tasks in a non-blocking manner."

Again, Javascript runtime is still single threaded BUT when it
makes a
call
to libuv, that libuv call could be to spawn a new thread within
that
same
process to do things that would cause the Javascript runtime to
block. I
see Nathan has responded and he explains it better than I have.

**https://nikhilm.github.io/uvbook/basics.html


Aaron Bartell
litmis.com - Services for open source on IBM i


On Wed, Oct 14, 2015 at 11:49 AM, Henrik Rützou <hr@xxxxxxxxxxxx>
wrote:

Aaron

what you are stating doesn't make sense. Javascript is known as
a
single
threaded
event driven and asynchronously (not to be confused with
muli-threaded)
OO
language
(Class or Prototype based).

Google's V8 javascript machine that runs in your chrome browser
is
exactly
the same that
the one that runs in node.js.

Putting a layer benieth it om a server that just executes
instructions
here
and there would
completely ruin the language and the JVM since you can't be
sure
that
one
instruction in line
100 is processed before line 101 that may rely on result in
line
100 is
finished.

On Wed, Oct 14, 2015 at 6:38 PM, Nathan Andelin
<nandelin@xxxxxxxxx

wrote:


I'm always open to other points of view.


There seems to be general agreement about external
reverse-proxies /
load-balancers being an effective means of "routing" work to
multiple
Node.js instances (Jobs), which ensures scalability and
fail-over
support.
There doesn't seem to be much distinction whether one uses
IIS,
NGiNX,
Apache, or whatever for external request routing.

It would be nice to see some benchmarks pertaining to Node's
internal
load-balancing via the "Cluster" module. I'd be a bit wary of
it
after
just
reading the documentation.

The question that has me the most stumped is the one about
"routing"
potentially thousands of URLs to appropriate JavaScript
routines,
with
each
routine pertaining to various "applications" within "modules"
within
"major-system-areas" (however you organize you broadly-scoped
services)?

Kevin indicated that Node has to be restarted each time a
routing configuration changes in Sails. Inline-coding of
routes in Express obviously suffers from the same problem.
I'd be concerned about
performance
as the number of URLs increase.
--
This is the Web Enabling the IBM i (AS/400 and iSeries)
(WEB400)
mailing
list
To post a message email: WEB400@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxx Before posting, please
take a moment to review the archives at
http://archive.midrange.com/web400.




--
Regards,
Henrik Rützou

http://powerEXT.com <http://powerext.com/>
--
This is the Web Enabling the IBM i (AS/400 and iSeries)
(WEB400)
mailing
list
To post a message email: WEB400@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxx Before posting, please
take a moment to review the archives at
http://archive.midrange.com/web400.


--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400)
mailing
list
To post a message email: WEB400@xxxxxxxxxxxx To subscribe,
unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxx Before posting, please take
a moment to review the archives at
http://archive.midrange.com/web400.




--
Regards,
Henrik Rützou

http://powerEXT.com <http://powerext.com/>
--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400)
mailing list To post a message email: WEB400@xxxxxxxxxxxx To
subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxx Before posting, please take a
moment to review the archives at
http://archive.midrange.com/web400.


--
This is the Web Enabling the IBM i (AS/400 and iSeries) (WEB400)
mailing list To post a message email: WEB400@xxxxxxxxxxxx To
subscribe, unsubscribe, or change list options,
visit: http://lists.midrange.com/mailman/listinfo/web400
or email: WEB400-request@xxxxxxxxxxxx Before posting, please take a
moment to review the archives at http://archive.midrange.com/web400.




--
Regards,
Henrik Rützou

http://powerEXT.com <http://powerext.com/>






As an Amazon Associate we earn from qualifying purchases.

This thread ...
Follow-Ups:
Replies:
Follow On AppleNews
Return to Archive home page | Return to MIDRANGE.COM home page

This mailing list archive is Copyright 1997-2024 by midrange.com and David Gibbs as a compilation work. Use of the archive is restricted to research of a business or technical nature. Any other uses are prohibited. Full details are available on our policy page. If you have questions about this, please contact [javascript protected email address].

Operating expenses for this site are earned using the Amazon Associate program and Google Adsense.