From: Xing Lin <xinglin@cs.utah.edu>
To: Sage Weil <sage@inktank.com>
Cc: "ceph-devel@vger.kernel.org" <ceph-devel@vger.kernel.org>
Subject: Re: When ceph synchronizes journal to disk?
Date: Mon, 04 Mar 2013 21:08:43 -0700 [thread overview]
Message-ID: <51356FCB.3020308@cs.utah.edu> (raw)
In-Reply-To: <alpine.DEB.2.00.1303040831470.12663@cobra.newdream.net>
No, I am using xfs. The same thing happens even if I specified the
journal mode explicitly as follows.
filestore journal parallel = false
filestore journal writeahead = true
Xing
On 03/04/2013 09:32 AM, Sage Weil wrote:
> Are you using btrfs? In that case, the journaling is parallel to the fs
> workload because the btrfs snapshots provide us with a stable checkpoint
> we can replay from. In contrast, for non-btrfs file systems we need to do
> writeahead journaling.
next prev parent reply other threads:[~2013-03-05 4:08 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-03-03 12:36 When ceph synchronizes journal to disk? Xing Lin
2013-03-04 16:32 ` Sage Weil
2013-03-05 4:08 ` Xing Lin [this message]
2013-03-04 16:55 ` Gregory Farnum
2013-03-05 4:33 ` Xing Lin
2013-03-05 8:37 ` When ceph synchronizes journal to disk? / read request Dieter Kasper
2013-03-05 20:13 ` Greg Farnum
2013-03-05 13:54 ` When ceph synchronizes journal to disk? Wido den Hollander
2013-03-05 20:12 ` Greg Farnum
2013-03-06 1:50 ` Xing Lin
2013-03-05 14:27 ` Ugis
2013-03-05 4:47 ` Xing Lin
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