Date: Wed, 15 May 2002 11:10:54 +0400 (MSD) From: Andrey Alekseyev <uitm@zenon.net> To: Richard Sharpe <rsharpe@ns.aus.com> Cc: Terry Lambert <tlambert2@mindspring.com>, freebsd-hackers@freebsd.org Subject: Re: File locking, closes and performance in a distributed file systemenv Message-ID: <200205150710.g4F7AsJ19533@uitm.zenon.net> In-Reply-To: <3CE1A9A0.A15C42B9@mindspring.com> from Terry Lambert at "May 14, 2002 05:19:44 pm"
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Btw, Terry's implementation of this ported to 4.5-STABLE could be found here: http://www.blackflag.ru/patches/nfs-client-and-server-locking-4.5-STABLE-20020312.diff I've been testing it continuously for a month or so with an NFS server on Solaris. Particularly, that was a combination of Connectathon NFS Testsuite and several hundred of Perl scripts doing flock on a remote and local files. So far found no problems with that. :) JFYI > I've actually wanted the VOP_ADVLOCK to be veto-based for going > on 6 years now, to avoid precisely the type of problems your are > now facing. If the upper layer code did local assertion on vnodes, > and called the lower layer code only in the success cases, then the > implementation would actually be done for you already. > > -- Terry > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-hackers" in the body of the message > -- Andrey Alekseyev. Zenon N.S.P. Senior Unix systems administrator To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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