Date: Tue, 25 Mar 2008 00:45:09 +0100 (CET) From: Wojciech Puchar <wojtek@wojtek.tensor.gdynia.pl> To: "Brian A. Seklecki" <bseklecki@collaborativefusion.com> Cc: freebsd-questions@freebsd.org Subject: Re: fault tolerance with FreeBSD for old DOS app Message-ID: <20080325003434.Q3516@wojtek.tensor.gdynia.pl> In-Reply-To: <1206396758.18298.73.camel@soundwave.ws.pitbpa0.priv.collaborativefusion.com> References: <007801c88dd6$2100d6c0$f800000a@chameleon> <1206396758.18298.73.camel@soundwave.ws.pitbpa0.priv.collaborativefusion.com>
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>> I want advice for old DOS app on Windows PC, that I need to make on 2 PC-s >> fault tolerant. Any advice for working solution on FreeBSD? > > Yep...rewrite the database in SQL with a PHP front end. Import the data > from the old system. Use a Radware/F5 Load Balancer for the web and > Slony-I for the database replication. > > Welcome to 2008. and have all "modern apps" problems and 1000 times higher hardware requirements to do the same. my CA-Clipper apps running under DOS are still in use after 15 years, because it work well. there is no better language for such things, there are CA-Clipper ports for unix, but not very good. clip (ports/databases/clip) is an exception, except it's screen handling is quite a mess. but will a little of work it's good, i ported few program to clip. clip is 5-20 times faster on the same machine than CA-Clipper :) for now - i don't know anything better to write database-processing programs than this. no "database engines" and other strange things - fortunately. it uses "ancient" technology - simply stores tables as flat files, and indexes as other files. there is quite a big chance this old DOS program was written in CA-Clipper.
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