Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!usc!csun!csusac!unify!reg
From: reg@unify.UUCP (Russell Grau)
Newsgroups: comp.databases
Subject: Re: Use of Sys V IPC features by RTI Ingres
Summary: How someone else does it
Keywords: shared memory, ipcs, semaphores
Message-ID: <885@unify.UUCP>
Date: 28 Jun 89 17:28:20 GMT
References: <386@odi.ODI.COM>
Reply-To: reg@unify.UUCP (Russell Grau)
Organization: Unify Corporation, Sacramento, CA, USA
Lines: 47

In article <386@odi.ODI.COM> dlw@odi.com writes:
>It seems to me that this might mean that in order to install RTI Ingres 
>at a Sun customer site, the customer might need to build a new kernel.
>
>I realize that building a new kernel isn't difficult for someone who
>has any experience in these matters.  But at some customer sites I'd
>expect there to be only a few local "wizards" who know about building
>kernels and who have permission to do so.  In actual practice, would
>anyone expect this to be a problem, or is it unlikely to ever cause
>problems?
>
>Please note that I don't intend this to be a criticism of anyone.  I'd
>just like to understand the costs incurred by real users when they
>have to deal with software that uses System V features, when the
>System V features can only be obtained via rebuilding the kernel.  Thanks.
>
>Dan Weinreb		Object Design, Inc.		dlw@odi.com

Dan -

Unify Corporation has been using the shared memory calls under Unix Sys V
for over 3 years with their ACCELL/UNIFY dbms products.  There have been 
times when it could cause a problem.  Those generally show up when someone
has zero experience using Unix and zero experience using dbms systems or 
following directions.

The question should be, how good are the directions for the machine that
the dbms software is to be installed on?  How detailed are the instructions
for the items/values in the kernal source files that need to be changed?
Are the values where the directions say they should be?  Rebuilding a kernel
should not be an arduous task.  Check the quality of instructions *before*
you begin.  If you have any questions, first, refer to the OS manual for
guidence about re-genning the kernel, then secondly call the dbms support
line.

Reading the OS manual about the reconfiguration of a kernal is *always* a
good bet before you begin any session.

Russell Grau                                (916) 920-9092
reg@unify.UUCP      
Disclaimer - "All opinions are my own, and occasionally someone else's"
{{ucdavis,csun,lll-crg}!csusac,pyramid,sequent}!unify!reg
-- 
Russell Grau                                (916) 920-9092
reg@unify.UUCP      
Disclaimer - "All opinions are my own, and occasionally someone else's"
{{ucdavis,csun,lll-crg}!csusac,pyramid,sequent}!unify!reg