From: "J. Bruce Fields" <bfields@fieldses.org>
To: Jeff Layton <jeff.layton@primarydata.com>
Cc: linux-nfs@vger.kernel.org
Subject: Re: [PATCH v2 0/5] nfsd: support for lifting grace period early
Date: Mon, 29 Sep 2014 13:55:56 -0400 [thread overview]
Message-ID: <20140929175555.GH30691@fieldses.org> (raw)
In-Reply-To: <20140929131130.3ba5d987@tlielax.poochiereds.net>
On Mon, Sep 29, 2014 at 01:11:30PM -0400, Jeff Layton wrote:
> If there is any bug, I think it's only going to crop up under extremely
> rare circumstances -- network partitions cropping up during reclaims,
> multiple reboots, etc...
>
> We probably ought to try and clarify this stuff for the spec (and our
> own implementations) but I don't think there's any cause for alarm...
Yes in this case I agree.
In general though reboot-recovery interoperability is hard to test and
bad documentation increases the chance we'll get it wrong.
(And these "edge cases" could also be more common that we expect: e.g.
if power failures come in clusters, and bring your switches down at
about the same time, could multiple-restarts-with-network-partitions be
the normal case?)
--b.
prev parent reply other threads:[~2014-09-29 17:55 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-19 18:38 [PATCH v2 0/5] nfsd: support for lifting grace period early Jeff Layton
2014-08-19 18:38 ` [PATCH v2 1/5] lockd: move lockd's grace period handling into its own module Jeff Layton
2014-08-28 20:01 ` J. Bruce Fields
2014-08-28 20:24 ` J. Bruce Fields
2014-08-28 23:53 ` Jeff Layton
2014-09-03 21:54 ` J. Bruce Fields
2014-09-15 22:08 ` J. Bruce Fields
2014-09-15 22:09 ` J. Bruce Fields
2014-09-15 22:10 ` J. Bruce Fields
2014-09-15 23:19 ` Jeff Layton
2014-09-16 0:19 ` J. Bruce Fields
2014-09-15 23:11 ` Jeff Layton
2014-08-19 18:38 ` [PATCH v2 2/5] lockd: add a /proc/fs/lockd/nlm_end_grace file Jeff Layton
2014-09-04 19:52 ` J. Bruce Fields
2014-08-19 18:38 ` [PATCH v2 3/5] nfsd: add a v4_end_grace file to /proc/fs/nfsd Jeff Layton
2014-09-04 19:54 ` J. Bruce Fields
2014-09-05 11:40 ` Jeff Layton
2014-08-19 18:38 ` [PATCH v2 4/5] nfsd: remove redundant boot_time parm from grace_done client tracking op Jeff Layton
2014-09-04 19:54 ` J. Bruce Fields
2014-08-19 18:38 ` [PATCH v2 5/5] nfsd: pass extra info in env vars to upcalls to allow for early grace period end Jeff Layton
2014-09-04 19:59 ` J. Bruce Fields
2014-09-05 11:43 ` Jeff Layton
2014-09-05 15:58 ` J. Bruce Fields
2014-09-26 18:39 ` [PATCH v2 0/5] nfsd: support for lifting grace period early J. Bruce Fields
2014-09-26 18:54 ` Jeff Layton
2014-09-26 19:46 ` J. Bruce Fields
2014-09-26 20:37 ` Trond Myklebust
2014-09-26 20:45 ` J. Bruce Fields
2014-09-26 20:58 ` Trond Myklebust
2014-09-26 21:47 ` J. Bruce Fields
2014-09-26 22:17 ` Trond Myklebust
2014-09-26 22:35 ` Trond Myklebust
2014-09-27 13:04 ` Jeff Layton
2014-09-29 16:44 ` J. Bruce Fields
2014-09-29 16:53 ` Trond Myklebust
2014-09-29 17:11 ` Jeff Layton
2014-09-29 17:55 ` J. Bruce Fields [this message]
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