Although running on ext4, xfs, or whatever other non-btrfs you want mostly
works, there are a few important remaining issues:
1- ext4 limits total xattrs for 4KB. This can cause problems in some
cases, as Ceph uses xattrs extensively. Most of the time we don't hit
this. We do hit the limit w
Thanks for explaining this. I don't have any objections against btrfs
as a osd filesystem. Even the fact that there is no btrfs-fsck doesn't
scare me, since I can use the ceph replication to recover a lost
btrfs-filesystem. The only problem I have is, that btrfs is not stable
on our side and I wond
[adding linux-btrfs to cc]
Josef, Chris, any ideas on the below issues?
On Mon, 24 Oct 2011, Christian Brunner wrote:
> Thanks for explaining this. I don't have any objections against btrfs
> as a osd filesystem. Even the fact that there is no btrfs-fsck doesn't
> scare me, since I can use the ce
On Mon, Oct 24, 2011 at 10:06:49AM -0700, Sage Weil wrote:
> [adding linux-btrfs to cc]
>
> Josef, Chris, any ideas on the below issues?
>
> On Mon, 24 Oct 2011, Christian Brunner wrote:
> > Thanks for explaining this. I don't have any objections against btrfs
> > as a osd filesystem. Even the fa
On Mon, Oct 24, 2011 at 03:51:47PM -0400, Josef Bacik wrote:
> On Mon, Oct 24, 2011 at 10:06:49AM -0700, Sage Weil wrote:
> > [adding linux-btrfs to cc]
> >
> > Josef, Chris, any ideas on the below issues?
> >
> > On Mon, 24 Oct 2011, Christian Brunner wrote:
> > > Thanks for explaining this. I d
2011/10/24 Chris Mason :
> On Mon, Oct 24, 2011 at 03:51:47PM -0400, Josef Bacik wrote:
>> On Mon, Oct 24, 2011 at 10:06:49AM -0700, Sage Weil wrote:
>> > [adding linux-btrfs to cc]
>> >
>> > Josef, Chris, any ideas on the below issues?
>> >
>> > On Mon, 24 Oct 2011, Christian Brunner wrote:
>> > >
On 24.10.2011 23:34, Christian Brunner wrote:
2011/10/24 Chris Mason:
On Mon, Oct 24, 2011 at 03:51:47PM -0400, Josef Bacik wrote:
On Mon, Oct 24, 2011 at 10:06:49AM -0700, Sage Weil wrote:
[adding linux-btrfs to cc]
Josef, Chris, any ideas on the below issues?
On Mon, 24 Oct 2011, Christian
On Mon, Oct 24, 2011 at 10:06:49AM -0700, Sage Weil wrote:
> > - When I run ceph with btrfs snaps disabled, the situation is getting
> > slightly better. I can run an OSD for about 3 days without problems,
> > but then again the load increases. This time, I can see that the
> > ceph-osd (blkdev_iss
On Tue, Oct 25, 2011 at 01:56:48PM +0200, Christian Brunner wrote:
> 2011/10/24 Josef Bacik :
> > On Mon, Oct 24, 2011 at 10:06:49AM -0700, Sage Weil wrote:
> >> [adding linux-btrfs to cc]
> >>
> >> Josef, Chris, any ideas on the below issues?
> >>
> >> On Mon, 24 Oct 2011, Christian Brunner wrote:
2011/10/25 Josef Bacik :
> On Tue, Oct 25, 2011 at 01:56:48PM +0200, Christian Brunner wrote:
>> 2011/10/24 Josef Bacik :
>> > On Mon, Oct 24, 2011 at 10:06:49AM -0700, Sage Weil wrote:
>> >> [adding linux-btrfs to cc]
>> >>
>> >> Josef, Chris, any ideas on the below issues?
>> >>
>> >> On Mon, 24
On Tue, Oct 25, 2011 at 04:25:02PM +0200, Christian Brunner wrote:
> 2011/10/25 Josef Bacik :
> > On Tue, Oct 25, 2011 at 01:56:48PM +0200, Christian Brunner wrote:
> >> 2011/10/24 Josef Bacik :
> >> > On Mon, Oct 24, 2011 at 10:06:49AM -0700, Sage Weil wrote:
> >> >> [adding linux-btrfs to cc]
> >
On Tue, Oct 25, 2011 at 04:25:02PM +0200, Christian Brunner wrote:
> 2011/10/25 Josef Bacik :
> > On Tue, Oct 25, 2011 at 01:56:48PM +0200, Christian Brunner wrote:
> >> 2011/10/24 Josef Bacik :
> >> > On Mon, Oct 24, 2011 at 10:06:49AM -0700, Sage Weil wrote:
> >> >> [adding linux-btrfs to cc]
> >
2011/10/25 Josef Bacik :
> On Tue, Oct 25, 2011 at 04:25:02PM +0200, Christian Brunner wrote:
>> 2011/10/25 Josef Bacik :
>> > On Tue, Oct 25, 2011 at 01:56:48PM +0200, Christian Brunner wrote:
[...]
>> >>
>> >> In our Ceph-OSD server we have 4 disks with 4 btrfs filesystems. Ceph
>> >> tries to ba
On Tue, 25 Oct 2011, Christoph Hellwig wrote:
> On Mon, Oct 24, 2011 at 10:06:49AM -0700, Sage Weil wrote:
> > > - When I run ceph with btrfs snaps disabled, the situation is getting
> > > slightly better. I can run an OSD for about 3 days without problems,
> > > but then again the load increases.
On Tue, 25 Oct 2011, Josef Bacik wrote:
> At this point it seems like the biggest problem with latency in ceph-osd
> is not related to btrfs, the latency seems to all be from the fact that
> ceph-osd is fsyncing a block dev for whatever reason.
There is one place where we sync_file_range() on t
2011/10/25 Sage Weil :
> On Tue, 25 Oct 2011, Josef Bacik wrote:
>> At this point it seems like the biggest problem with latency in ceph-osd
>> is not related to btrfs, the latency seems to all be from the fact that
>> ceph-osd is fsyncing a block dev for whatever reason.
>
> There is one place whe
On Tue, Oct 25, 2011 at 11:05:12AM -0400, Josef Bacik wrote:
> On Tue, Oct 25, 2011 at 04:25:02PM +0200, Christian Brunner wrote:
> >
> > Attached is a perf-report. I have included the whole report, so that
> > you can see the difference between the good and the bad
> > btrfs-endio-wri.
> >
>
> W
On Tue, Oct 25, 2011 at 04:15:45PM -0400, Chris Mason wrote:
> On Tue, Oct 25, 2011 at 11:05:12AM -0400, Josef Bacik wrote:
> > On Tue, Oct 25, 2011 at 04:25:02PM +0200, Christian Brunner wrote:
> > >
> > > Attached is a perf-report. I have included the whole report, so that
> > > you can see the
On Tue, 25 Oct 2011, Christian Brunner wrote:
> 2011/10/25 Sage Weil :
> > On Tue, 25 Oct 2011, Josef Bacik wrote:
> >> At this point it seems like the biggest problem with latency in ceph-osd
> >> is not related to btrfs, the latency seems to all be from the fact that
> >> ceph-osd is fsyncing a b
2011/10/25 Josef Bacik :
> On Tue, Oct 25, 2011 at 04:15:45PM -0400, Chris Mason wrote:
>> On Tue, Oct 25, 2011 at 11:05:12AM -0400, Josef Bacik wrote:
>> > On Tue, Oct 25, 2011 at 04:25:02PM +0200, Christian Brunner wrote:
>> > >
>> > > Attached is a perf-report. I have included the whole report,
2011/10/26 Sage Weil :
> On Wed, 26 Oct 2011, Christian Brunner wrote:
>> >> > Christian, have you tweaked those settings in your ceph.conf? It would
>> >> > be
>> >> > something like 'journal dio = false'. If not, can you verify that
>> >> > directio shows true when the journal is initialized f
2011/10/26 Christian Brunner :
> 2011/10/25 Josef Bacik :
>> On Tue, Oct 25, 2011 at 04:15:45PM -0400, Chris Mason wrote:
>>> On Tue, Oct 25, 2011 at 11:05:12AM -0400, Josef Bacik wrote:
>>> > On Tue, Oct 25, 2011 at 04:25:02PM +0200, Christian Brunner wrote:
>>> > >
>>> > > Attached is a perf-repo
On Tue, Oct 25, 2011 at 04:22:48PM -0400, Josef Bacik wrote:
> On Tue, Oct 25, 2011 at 04:15:45PM -0400, Chris Mason wrote:
> > On Tue, Oct 25, 2011 at 11:05:12AM -0400, Josef Bacik wrote:
> > > On Tue, Oct 25, 2011 at 04:25:02PM +0200, Christian Brunner wrote:
> > > >
> > > > Attached is a perf-r
On Wed, 26 Oct 2011, Christian Brunner wrote:
> 2011/10/26 Sage Weil :
> > On Wed, 26 Oct 2011, Christian Brunner wrote:
> >> >> > Christian, have you tweaked those settings in your ceph.conf? It
> >> >> > would be
> >> >> > something like 'journal dio = false'. If not, can you verify that
> >>
Hi
resend without the perf attachment, which could be found here:
http://tuxadero.com/multistorage/perf.report.txt.bz2
Best Regards,
martin
Original-Nachricht
Betreff: Re: ceph on btrfs [was Re: ceph on non-btrfs file systems]
Datum: Wed, 26 Oct 2011 22:38:47 +0200
Von
ut the perf attachment, which could be found here:
> http://tuxadero.com/multistorage/perf.report.txt.bz2
>
> Best Regards,
> martin
>
> Original-Nachricht
> Betreff: Re: ceph on btrfs [was Re: ceph on non-btrfs file systems]
> Datum: Wed, 26 Oct 2011 22:38:
Majer
On Thu, Oct 27, 2011 at 12:53 PM, Martin Mailand wrote:
Hi
resend without the perf attachment, which could be found here:
http://tuxadero.com/multistorage/perf.report.txt.bz2
Best Regards,
martin
Original-Nachricht
Betreff: Re: ceph on btrfs [was Re: ceph on non-btrfs
On Wed, Oct 26, 2011 at 09:23:54AM -0400, Chris Mason wrote:
> On Tue, Oct 25, 2011 at 04:22:48PM -0400, Josef Bacik wrote:
> > On Tue, Oct 25, 2011 at 04:15:45PM -0400, Chris Mason wrote:
> > > On Tue, Oct 25, 2011 at 11:05:12AM -0400, Josef Bacik wrote:
> > > > On Tue, Oct 25, 2011 at 04:25:02PM
On Thu, Oct 27, 2011 at 11:07:38AM -0400, Josef Bacik wrote:
> On Wed, Oct 26, 2011 at 09:23:54AM -0400, Chris Mason wrote:
> > On Tue, Oct 25, 2011 at 04:22:48PM -0400, Josef Bacik wrote:
> > > On Tue, Oct 25, 2011 at 04:15:45PM -0400, Chris Mason wrote:
> > > > On Tue, Oct 25, 2011 at 11:05:12AM
On Tue, Oct 25, 2011 at 01:56:48PM +0200, Christian Brunner wrote:
> 2011/10/24 Josef Bacik :
> > On Mon, Oct 24, 2011 at 10:06:49AM -0700, Sage Weil wrote:
> >> [adding linux-btrfs to cc]
> >>
> >> Josef, Chris, any ideas on the below issues?
> >>
> >> On Mon, 24 Oct 2011, Christian Brunner wrote:
2011/10/27 Josef Bacik :
> On Tue, Oct 25, 2011 at 01:56:48PM +0200, Christian Brunner wrote:
>> 2011/10/24 Josef Bacik :
>> > On Mon, Oct 24, 2011 at 10:06:49AM -0700, Sage Weil wrote:
>> >> [adding linux-btrfs to cc]
>> >>
>> >> Josef, Chris, any ideas on the below issues?
>> >>
>> >> On Mon, 24
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