From: Mark Nelson <mark.nelson@inktank.com>
To: Tommi Virtanen <tv@inktank.com>
Cc: John Axel Eriksson <john@insane.se>, ceph-devel@vger.kernel.org
Subject: Re: radosgw authentication problems
Date: Sun, 10 Jun 2012 19:30:31 -0500 [thread overview]
Message-ID: <4FD53C27.80809@inktank.com> (raw)
In-Reply-To: <CADvuQRH=MJjNL7KMSWXXcOgRv5nAfOiH9efGOq+NXHary5iovQ@mail.gmail.com>
On 06/07/2012 02:44 PM, Tommi Virtanen wrote:
> On Thu, Jun 7, 2012 at 11:52 AM, John Axel Eriksson<john@insane.se> wrote:
>> Do you recommend btrfs or perhaps xfs for osds etc?
>
> Right now I think the preference order is xfs btrfs ext4, but we keep
> seeing performance& reliability issues fairly evenly these days.
> Btrfs apparently still has a tendency to get slower as the filesystem
> ages.
>
> Mark, feel free to correct me here ;)
I think Tommi's got it right. So far what we've seen is that XFS is
slower on a fresh file system but over time ends up being faster for
small IO and about on-par for large IO. We just started testing EXT4
again now that we have leveldb in place. I'm a little concerned about
data integrity after ext4 failed on some benchmark runs, but on the
upside performance looks pretty good so far. We'll see how well it ages
vs xfs/btrfs in the coming weeks.
Mark
next prev parent reply other threads:[~2012-06-11 0:30 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-07 7:03 radosgw authentication problems John Axel Eriksson
2012-06-07 7:14 ` Yehuda Sadeh
2012-06-07 10:16 ` John Axel Eriksson
2012-06-07 16:33 ` Tommi Virtanen
2012-06-07 18:52 ` John Axel Eriksson
2012-06-07 19:44 ` Tommi Virtanen
2012-06-11 0:30 ` Mark Nelson [this message]
2012-06-11 0:03 ` Barry Pederson
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