Re: EGL, Java and PHP

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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