Re: IceBreak as an alternative to Apache?

["Dean, Robert" <rdean@xxxxxxxxxxxx>]

I think the concern is that stateful connections take up more resources. Where a stateful environment requires one job per client, a stateless environment can service many clients per job.  

That being said, the IBM i platform is a good choice for a stateful environment because of the way resources are managed.

________________________________________
From: web400-bounces@xxxxxxxxxxxx [web400-bounces@xxxxxxxxxxxx] on behalf of Kevin Turner [kevin.turner@xxxxxxxxxxxxxxx]
Sent: Friday, December 31, 2010 11:18 AM
To: Web Enabling the AS400 / iSeries
Cc: Web Enabling the AS400 / iSeries
Subject: Re: [WEB400] IceBreak as an alternative to Apache?

Joe

I have always steered clear of persistent CGI because of a fear that it will not scale as well as a standard stateless environment. Is this fear justified? I have never had the opportunity to put it to the test.

Kevin

On 31 Dec 2010, at 16:05, "Joe Pluta" <joepluta@xxxxxxxxxxxxxxxxx> wrote:

> There is nothing particularly special about stateful connections.  In
> traditional CGI processing this is known as persistent CGI, and has been
> around since about 1998.  Not only that, it's a built-in capability of
> the IBM i that has been around for nearly as long on the IBM Apache
> server.  As far as I know, it goes back to V5R1 or V5R2, maybe further.
> That's a decade or so.  And with IBM, you control it by session, not by
> server, so you can have persistent or non-persistent sessions on the
> same server.
>
> Also, this is a fundamental capability of WebSphere.  Via the Java
> toolkit you can have both persistent and non-persistent connections and
> in fact, if you needed to you could have both persistent and
> non-persistent connections in the same session!  EGL supports this
> capability out of the box; when you define a program (RPG, COBOL,
> whatever) to be called you define whether it is stateful or stateless.
> So you can have both stateful and stateless connections in the same
> session!  Stateful connections each have a persistent job, with
> overrides and ODPs and a QTEMP - the job is named QZRCSRVS and runs in
> QUSRWRK.
>
> So, it's nice that IceBreak has this, but it's really not unique to the
> tool.
>
> Happy New Year!
>
> Joe
>
> P.S. For debugging, you might want to look into Service Entry Points.
> It makes debugging web programs a breeze, even in non-persistent CGI!
>
>
>
> > Hi Kevin
> >
> > "task switch feature"! This feature is a feature which is special in IceBreak. It is a feature that keeps track of your browser session and sends request on to an isolated job native under OS/400. This means that your programs can remain open with file pointers, variables etc. It also means that you might use the QTEMP to something practical - again. Further, you can work with the job through normal OS/400 interface such as WRKACTJOB. It also means that with this technique can debug programs without having to think about other jobs and sessions.
>
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