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From: berliner@convex.UUCP
Newsgroups: comp.unix.questions
Subject: Re: Shutdown loudness wrt NFS
Message-ID: <65200002@convex>
Date: Sun, 12-Apr-87 23:27:00 EST
Article-I.D.: convex.65200002
Posted: Sun Apr 12 23:27:00 1987
Date-Received: Sat, 18-Apr-87 23:36:58 EST
References: <446@aramis.RUTGERS.EDU>
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Nf-ID: #R:aramis.RUTGERS.EDU:446:convex:65200002:000:983
Nf-From: convex.UUCP!berliner    Apr 12 22:27:00 1987


/* Written  2:21 pm  Apr  9, 1987 by lear@aramis.RUTGERS.EDU */
> ...  If you are going to change something, I believe it
> would be best to reduce the frequency of the rwall messages.

We also got a bit fed up with the many rwall messages sent to NFS clients
when a server is shutdown.  After much thought, we did just as you suggest.
Our shutdown only sends one rwall request for each message, rather than two
silly ones.  One rwall message is sent for every two messages sent locally.
Further, if there is less than one minute left 'till shutdown, no remote
messages are sent (except if it's the first message, as in "shutdown now").
This reduces a 30 minute shutdown from sending 8 remote messages to only 3.

We also added a "-q" flag to shutdown to have shutdown not send any remote
messages (which is also patchable, to make it a system default).

Brian Berliner
Convex Computer Corp.
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