Date: Thu, 22 Oct 2009 10:39:58 -0400 (EDT) From: Rick Macklem <rmacklem@uoguelph.ca> To: Bruce Evans <brde@optusnet.com.au> Cc: arch@freebsd.org Subject: Re: Put a timeout on -ve name cache entries in NFS Message-ID: <Pine.GSO.4.63.0910221034520.1537@muncher.cs.uoguelph.ca> In-Reply-To: <20091022182943.P13634@delplex.bde.org> References: <200910191634.30040.jhb@freebsd.org> <20091022182943.P13634@delplex.bde.org>
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On Thu, 22 Oct 2009, Bruce Evans wrote: > > One reason that I never committed my port of NetBSD's implementation of > negative cache entries for nfs is that I thought the timeout should be > a mount option but I didn't want to deal with the portability problems > from that. > Just to clarify. Are you saying that, given no other system has such a mount option, you think the sysctl variable is an ok solution or that you think it should be a mount option and not a sysctl variable? I'll admit that I'm biased because the sysctl variable is easier to do (and I don't think many people will need to twiddle it). I suggested it to John, mostly so that there was a way of disabling the -ve name caching, for the rare case where it might be causing someone grief. (That's what I think he meant by "safety belt".) rick
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