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

[Henrik Rützou <hr@xxxxxxxxxxxx>]

Niels

so now node.js it out and Oracle Nashorn is in?

On Fri, Oct 16, 2015 at 11:44 PM, Niels Liisberg <NLI@xxxxxxxxxxxxxxxxx>
wrote:

> .. And therefor … maybe one of the most insteresting features in releasing
> the new JVM 1.8 on the IBMI:  is that it runs "Nashorn" !!!   - javascript
> natively on the JVM in the IBMI
>
> I have made at ( small and premature ) project that uses the JVM on the
> IBMI together with jtOpen that performs amazing javascript similar to
> node.js
>
> It is only at "what-you-can-expect" project – but if all of you guys see
> the picture – it can be a quite eye openinger of what the IBMI can do with
> the javascript on IBMi
>
> Just a couple of hours work – but it rocks, and we are already using it
> inhouse to wrap java libraies in javascript :
>
> Let me share this with you:
>
> https://github.com/NielsLiisberg/ninjaDB
>
>
>
>
>
> Best regards
>
> Niels Liisberg
>
> Chief Software Architect
>
>
> System & Method
>
> Håndværkersvinget 8
> DK-2970 Hørsholm
> Phone: +45 70 20 30 10
>
> Fax: +45 70 20 30 11
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> E-mail: nli@xxxxxxxxxxxxxxxxx
> Web: www.system-method.com and www.Icebreak.org
>
> “Everything should be made as simple as possible, but not simpler.”
> — Albert Einstein
>
>
> From: WEB400 <web400-bounces@xxxxxxxxxxxx<mailto:
> web400-bounces@xxxxxxxxxxxx>> on behalf of Nathan Andelin <
> nandelin@xxxxxxxxx<mailto:nandelin@xxxxxxxxx>>
> Reply-To: AS400 iSeries <web400@xxxxxxxxxxxx<mailto:web400@xxxxxxxxxxxx>>
> Date: fredag den 16. oktober 2015 kl. 22.50
> To: AS400 iSeries <web400@xxxxxxxxxxxx<mailto:web400@xxxxxxxxxxxx>>
> Subject: Re: [WEB400] Hosting a Large Number of Node Apps on the IBM i
>
>
> I do know that node is being used by companies like Walmart, LinkedIn,
> PayPal, NetFlix, Dow Jones, and more. Walmart released node on Black Friday
> of 2013 to handle their mobile traffic (about half of all www.walmart.com
> traffic). LinkedIn is using node for all of their mobile. Are the companies
> just listed using node for "simple applets," as you are conceiving simple
> applets?
>
>
> Kelly,
>
> My view of Node.js has been shaped mostly by discussions on this list. I'm
> not very aware of how it might be used at the high-profile organizations
> that you've listed.
>
> Personally, I'm interested in using Node.js as a broadcast service for
> Websocket listeners as part of an online meeting application. I could
> imagine similar uses at NetFlix and Dow Jones.
>
> But this discussion is about hosting large numbers of apps; Say ERP-class
> systems. And we're still perplexed by concerns such as "request routing"
> within Node.js, having to restart the service every time a new "route" is
> added, and the probability of developers doing something that will cause
> the entire environment (HTTP, request routing, and all applications) to
> fail.
>
> Nobody has been able to address those concerns, and I don't have the
> answers either.
>
> The link you posted in the other thread about Node.js "going up in flames"
> at NetFlix concluded with:
>
> "We made incorrect assumptions about the Express.js API without digging
> further into its code base. As a result, our misuse of the Express.js API
> was the ultimate root cause of our performance issue."
>
> A Google search on "Walmart Node.js" returns a lot of references about a
> major "memory leak" problem. Walmart spent $2 million between 2013-2014 on
> a framework to replace Express.js. By now the cost could b up to $5
> million.
>
> One of the key Node.js developers at Walmart described their Node.js setup
> as a "proxy" routing requests to their Java back-end business-rules server.
>
> Walmart has a server farm where they deploy a single Node.js process per VM
> which hosts an OS. That makes me shake my head. Possibly hundreds of VM /
> OS instances running One Node.js process each?
>
> PHP developers once boasted about Facebook as a reference site. Facebook
> later revealed that their infrastructure costs were too high with PHP, so
> they came up with a solution which "transformed" PHP to C, to address
> performance concerns.
>
> Please don't interpret my remarks as being anti-Node, PHP, or whatever. I
> just have concerns in regards to "large numbers of apps".
> --
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