Date: Wed, 1 Feb 1995 22:43:42 -0500 From: Garrett Wollman <wollman@halloran-eldar.lcs.mit.edu> To: "Jordan K. Hubbard" <jkh@FreeBSD.org> Cc: jdc@crab.xinside.com, wollman@halloran-eldar.lcs.mit.edu, hackers@freefall.cdrom.com Subject: Re: Am I dreaming? Message-ID: <9502020343.AA20549@halloran-eldar.lcs.mit.edu> In-Reply-To: <10336.791695854@time.cdrom.com> References: <199501280929.CAA16417@crab.xinside.com> <10336.791695854@time.cdrom.com>
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<<On Wed, 01 Feb 1995 19:30:54 -0800, "Jordan K. Hubbard" <jkh@freebsd.org> said: >> The automount daemon circumvents the same problem appearing for NFS. >> Life goes on while the automounter tracks down and mounts the >> required resource... It's been a while since I ran a network large >> enough to justify automounting, but I don't remember any system >> delays while the node was found and mounted. Would it be useful to >> consider what & how the automounter achieves its' effects? Note that > Actually, it sort of would since I've always *wondered* how it did that! :-) > Anybody know off the top of their heads? amd relies on NFS retransmissions for reliability. If it needs to do something that isn't finished right away, it will just drop the packet, start the operation, and let the kernel eventually time out and retransmit. That's why it turns off the automatic RTT estimation in the kernel (because the RTT depends on what it's being asked to do). -GAWollman -- Garrett A. Wollman | Shashish is simple, it's discreet, it's brief. ... wollman@lcs.mit.edu | Shashish is the bonding of hearts in spite of distance. Opinions not those of| It is a bond more powerful than absence. We like people MIT, LCS, ANA, or NSA| who like Shashish. - Claude McKenzie + Florent Vollant
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