Article View: net.database
Article #183Re: Database software for UNIX systems
From: dbmt
Date: Thu, 06 Feb 1986 20:43
Date: Thu, 06 Feb 1986 20:43
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1738 bytes
In article <509@mtxinu.UUCP> ed@mtxinu.UUCP (Ed Gould) writes:
>>> ... Ingres also requires mods to the kernel...
>>
>>Actually, Ingres has a locking pseuodo device driver. I do not think that
>>adding a "device" driver is equivalent to "mods to the kernel" since you
>>are not changing kernel source code.
>
>There are several versions of Ingres. The current commercial version
>from RTI does not require kernel mods, although older versions did.
>The current mechanism just adds a driver. Research Ingres, running
>on 4.2/4.3BSD uses a user-level lock manager that communicates with
>the database software via a socket.
>
We, at BRL have a lock daemon supplied by RTI. As far as I know, we are the
only such installation. It was developed for us by RTI, at our insistence,
as a prototype to aviod the kernel mod required by INGRES 2.0. We have been
using it successfully since June 1985. I have been trying to persuade RTI
to support it as an alternative; but they won't commit themselves.
Maybe a little pressure from netland...
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Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!burl!ulysses!mhuxr!mhuxt!houxm!whuxl!whuxlm!akgua!gatech!seismo!brl-smoke!brl-tgr!dbmt From: dbmt@brl-tgr.UUCP Newsgroups: net.database,net.unix-wizards Subject: Re: Database software for UNIX systems Message-ID: <2155@brl-tgr.ARPA> Date: Thu, 6-Feb-86 15:43:57 EST Article-I.D.: brl-tgr.2155 Posted: Thu Feb 6 15:43:57 1986 Date-Received: Tue, 11-Feb-86 05:46:13 EST References: <426@godot.UUCP> <164@hscfvax.UUCP> <131@wgivax.UUCP> <1133@ptsfa.UUCP> <509@mtxinu.UUCP> Reply-To: waltermy@brl.ARPA (Mike Waltermyer <waltermy>) Organization: Ballistic Research Lab Lines: 21