From: Trond Myklebust <trond.myklebust@fys.uio.no>
To: Peter Staubach <staubach@redhat.com>
Cc: chucklever@gmail.com, Andrew Bell <andrew.bell.ia@gmail.com>,
linux-nfs@vger.kernel.org
Subject: Re: Performance Diagnosis
Date: Tue, 15 Jul 2008 15:35:52 -0400 [thread overview]
Message-ID: <1216150552.7981.48.camel@localhost> (raw)
In-Reply-To: <487CF8D6.2090908@redhat.com>
On Tue, 2008-07-15 at 15:21 -0400, Peter Staubach wrote:
> The connection manager would seem to be a RPC level thing, although
> I haven't thought through the ramifications of the NFSv4.1 stuff
> and how it might impact a connection manager sufficiently.
We already have the scheme that shuts down connections on inactive RPC
clients after a suitable timeout period, so the only gains I can see
would have to involve shutting down connections on active clients.
At that point, the danger isn't with NFSv4.1, it is rather with
NFSv2/3/4.0... Specifically, their lack of good replay cache semantics
mean that you have to be very careful about schemes that involve
shutting down connections on active RPC clients.
Cheers
Trond
next prev parent reply other threads:[~2008-07-15 19:35 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-07-15 15:34 Performance Diagnosis Andrew Bell
[not found] ` <e80abd30807150834m47a1b86cle39885150f1d5bfd-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-07-15 15:49 ` Chuck Lever
2008-07-15 15:58 ` Peter Staubach
2008-07-15 16:23 ` Chuck Lever
[not found] ` <76bd70e30807150923r31027edxb0394a220bbe879b-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-07-15 16:34 ` Andrew Bell
[not found] ` <e80abd30807150934tc14e793ydd7aae44b4c3111b-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-07-15 17:20 ` Chuck Lever
2008-07-15 17:44 ` Peter Staubach
2008-07-15 18:17 ` Chuck Lever
[not found] ` <76bd70e30807151117g520f22cj1dfe26b971987d38-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-07-15 18:51 ` Trond Myklebust
2008-07-15 19:21 ` Peter Staubach
2008-07-15 19:35 ` Trond Myklebust [this message]
2008-07-15 19:55 ` Peter Staubach
2008-07-15 20:27 ` Trond Myklebust
2008-07-15 20:48 ` Peter Staubach
2008-07-15 21:15 ` Talpey, Thomas
2008-07-16 7:35 ` Benny Halevy
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