From: Mark Fasheh <mark.fasheh@oracle.com>
To: "Theodore Ts'o" <tytso@mit.edu>, Pavel Machek <pavel@ucw.cz>,
David Teigland <teigland@redhat.com>,
Andrew Morton <akpm@osdl.org>,
Alan Cox <alan@lxorguk.ukuu.org.uk>,
linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-cluster@redhat.com
Subject: Re: GFS, what's remaining
Date: Mon, 5 Sep 2005 00:09:23 -0700 [thread overview]
Message-ID: <20050905070922.GK21228@ca-server1.us.oracle.com> (raw)
In-Reply-To: <20050905055428.GA29158@thunk.org>
On Mon, Sep 05, 2005 at 01:54:28AM -0400, Theodore Ts'o wrote:
> In the ext3 case, the only time when read-only isn't quite read-only
> is when the filesystem was unmounted uncleanly and the journal needs
> to be replayed in order for the filesystem to be consistent.
Right, and OCFS2 is going to try to keep the behavior of only using the
journal for recovery in normal (soft) read-only operation.
Unfortunately other cluster nodes could die at any moment which can
complicate things as we are now required to do recovery on them to ensure
file system consistency.
Recovery of course includes things like orphan dir cleanup, etc so we need a
journal around for those transactions. To simplify all this, I'm just going
to have it load the journal as it normally does (as opposed to only when the
local node has a dirty journal) because it could be used at any moment.
Btw, I'm curious to know how useful folks find the ext3 mount options
errors=continue and errors=panic. I'm extremely likely to implement the
errors=read-only behavior as default in OCFS2 and I'm wondering whether the
other two are worth looking into.
--Mark
--
Mark Fasheh
Senior Software Developer, Oracle
mark.fasheh@oracle.com
next prev parent reply other threads:[~2005-09-05 7:10 UTC|newest]
Thread overview: 105+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-09-01 10:46 GFS, what's remaining David Teigland
2005-09-01 10:42 ` Arjan van de Ven
2005-09-01 10:59 ` Andrew Morton
2005-09-01 14:49 ` Alan Cox
2005-09-01 14:27 ` Christoph Hellwig
2005-09-01 15:28 ` Alan Cox
2005-09-01 15:11 ` Lars Marowsky-Bree
2005-09-01 17:56 ` Christoph Hellwig
2005-09-02 7:04 ` David Teigland
2005-09-01 17:23 ` Daniel Phillips
2005-09-01 20:21 ` Andrew Morton
2005-09-02 21:17 ` Andi Kleen
2005-09-02 23:03 ` Bryan Henderson
2005-09-03 0:16 ` Mark Fasheh
2005-09-03 6:42 ` Daniel Phillips
2005-09-03 6:46 ` Wim Coekaerts
2005-09-03 22:21 ` Daniel Phillips
2005-09-04 1:09 ` [Linux-cluster] " Joel Becker
2005-09-04 1:32 ` Andrew Morton
2005-09-04 3:06 ` Joel Becker
2005-09-04 4:22 ` [Linux-cluster] " Daniel Phillips
2005-09-04 4:30 ` Joel Becker
2005-09-04 4:51 ` Daniel Phillips
2005-09-04 5:00 ` Joel Becker
2005-09-04 5:52 ` [Linux-cluster] " Daniel Phillips
2005-09-04 5:56 ` Joel Becker
2005-09-04 4:46 ` Andrew Morton
2005-09-04 4:58 ` Joel Becker
2005-09-04 5:41 ` Andrew Morton
2005-09-04 5:49 ` Joel Becker
2005-09-05 4:30 ` David Teigland
2005-09-05 8:54 ` [Linux-cluster] " Andrew Morton
2005-09-05 9:24 ` David Teigland
2005-09-05 9:19 ` [Linux-cluster] " Andrew Morton
2005-09-05 9:30 ` Daniel Phillips
2005-09-05 9:48 ` David Teigland
2005-09-05 12:21 ` Alan Cox
2005-09-05 19:53 ` [Linux-cluster] " Andrew Morton
2005-09-05 23:20 ` Alan Cox
2005-09-05 23:06 ` Andrew Morton
2005-09-14 9:01 ` [Linux-cluster] " Patrick Caulfield
2005-09-05 19:11 ` kurt.hackel
2005-09-04 6:10 ` Mark Fasheh
2005-09-04 7:23 ` Andrew Morton
2005-09-04 8:17 ` Mark Fasheh
2005-09-04 8:37 ` Andrew Morton
2005-09-04 6:40 ` [Linux-cluster] " Daniel Phillips
2005-09-04 7:28 ` Andrew Morton
2005-09-04 8:01 ` [Linux-cluster] " Joel Becker
2005-09-04 8:18 ` Andrew Morton
2005-09-04 9:11 ` Joel Becker
2005-09-04 9:18 ` [Linux-cluster] " Andrew Morton
2005-09-04 9:39 ` Joel Becker
2005-09-04 18:03 ` [Linux-cluster] " Hua Zhong
2005-09-04 19:51 ` Daniel Phillips
2005-09-04 7:12 ` Hua Zhong
2005-09-04 8:37 ` Alan Cox
2005-09-05 23:32 ` Joel Becker
2005-09-03 5:57 ` Daniel Phillips
2005-09-05 14:14 ` Lars Marowsky-Bree
2005-09-05 15:49 ` Daniel Phillips
2005-09-05 16:18 ` Dmitry Torokhov
2005-09-06 0:57 ` Daniel Phillips
2005-09-06 2:03 ` Dmitry Torokhov
2005-09-06 4:02 ` Daniel Phillips
2005-09-06 4:07 ` GFS, what's remainingh Dmitry Torokhov
2005-09-06 4:58 ` Daniel Phillips
2005-09-06 5:05 ` Dmitry Torokhov
2005-09-06 6:48 ` Daniel Phillips
2005-09-06 6:55 ` Dmitry Torokhov
2005-09-06 7:18 ` Daniel Phillips
2005-09-06 14:31 ` Dmitry Torokhov
2005-09-06 13:42 ` Alan Cox
2005-09-03 7:06 ` GFS, what's remaining Wim Coekaerts
2005-09-06 12:55 ` Suparna Bhattacharya
2005-09-03 5:18 ` David Teigland
2005-09-03 6:14 ` Arjan van de Ven
2005-09-03 6:42 ` D. Hazelton
2005-09-03 10:35 ` David Teigland
2005-09-03 20:56 ` Daniel Phillips
2005-09-04 20:33 ` Pavel Machek
2005-09-04 22:18 ` Joel Becker
2005-09-05 5:54 ` Theodore Ts'o
2005-09-05 7:09 ` Mark Fasheh [this message]
2005-09-05 14:07 ` Theodore Ts'o
2005-09-05 8:27 ` real read-only [was Re: GFS, what's remaining] Pavel Machek
2005-09-05 14:03 ` Theodore Ts'o
2005-09-05 10:44 ` Re: GFS, what's remaining Stephen C. Tweedie
2005-09-05 16:41 ` Greg Freemyer
2005-09-01 11:35 ` Arjan van de Ven
2005-09-02 9:44 ` David Teigland
2005-09-02 11:46 ` Jörn Engel
2005-09-03 5:28 ` Greg KH
2005-09-05 3:47 ` David Teigland
2005-09-05 8:58 ` Jörn Engel
2005-09-05 9:18 ` David Teigland
2005-09-05 5:43 ` David Teigland
2005-09-05 6:32 ` Pekka Enberg
2005-09-05 7:55 ` David Teigland
2005-09-05 8:00 ` Pekka Enberg
2005-09-10 10:11 ` Arjan van de Ven
2005-09-05 6:29 ` David Teigland
2005-09-08 5:41 ` David Teigland
2005-09-01 12:33 ` Pekka Enberg
2005-09-01 17:27 ` Daniel Phillips
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