Re: EGL, Java and PHP

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

Nothing is intended to be critical of your decision to rewrite in
RPG.  For a security product, I'd make the same call on a performance
basis.

For the aforementioned reasons, my opinion is that unreliability is
not a valid reason to make the move.  I've seen enough problems
with RPG and DB2 to know that they're not perfect.
________________________________________
From: web400-bounces@xxxxxxxxxxxx [web400-bounces@xxxxxxxxxxxx] On Behalf Of Dr. Syd Nicholson [sydnic@xxxxxxxxxx]
Sent: Tuesday, December 29, 2009 6:15 PM
To: Web Enabling the AS400 / iSeries
Subject: Re: [WEB400] EGL, Java and PHP

I was not using threads (although the OS does). Also the Java code was
simple - just storing/retrieving data from memory (mainly hash tables).

Never experienced such problems with RPG or DB2.

Syd


Dean, Robert wrote:
> I also had a problem with a Java update breaking a utility I had written.
> After analyzing it, I discovered that I had a thread safety problem that
> had been mistakenly tolerated by previous releases.  "Just because it
> works now doesn't mean it's right."
>
> I've seen similar things happen with RPG and even more in DB2, so
> it doesn't seem reasonable to criticize Java on this specific point.
> ________________________________________
> From: web400-bounces@xxxxxxxxxxxx [web400-bounces@xxxxxxxxxxxx] On Behalf Of Dr. Syd Nicholson [sydnic@xxxxxxxxxx]
> Sent: Tuesday, December 29, 2009 4:51 PM
> To: Web Enabling the AS400 / iSeries
> Subject: Re: [WEB400] EGL, Java and PHP
>
> 2. I have a product called Fortress/400. A system i security product.
> This maintained a cache of objects in memory to avoid excessive
> repetitive I/O and to avoid the requirement for files to be permanently
> open. Somewhere a Java update caused this to fail ( a hash table problem
> I think). To avoid creating different versions for different customers
> on different i5/OS releases and PTF levels I removed all Java. The cache
> was replaced by a series of user spaces, user indexes, and RPG service
> programs. This is more reliable and faster.
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