Database software for UNIX systems

[dbmt at brl-tgr.UUCP]

In article <509 at mtxinu.UUCP> ed at 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...