Unify Database Problems

[Mike Shannon]

In article <340 at luke.UUCP> Bob Speray writes
> record locking?  WHO has this problem solved on Unix?  Every variant
> solution around has its limitations.  Unify uses John Bass locking
> in our environment( Plexus P60, sys3) - an absolutely exclusive lock that
> locks out reads as well as writes.   It works fine, AS DEFINED, but
> has severe limitations on concurrent reads.  It's ok for concurrent writes.

	What's the nitty gritty on 'John Bass' locking?  How about some
history, tradeoffs, etc?
	thanks,
-- 
			Michael Shannon {ihnp4,hplabs}!oliveb!3comvax!mikes