On Thu, Oct 18, 2012 at 7:40 AM, Jimmy Tang jt...@tchpc.tcd.ie wrote:
What I actually meant to ask was, is it possible to copy objects or pools
from one ceph cluster to another (for disaster recovery reasons) and if this
feature is planned or even considered?
That's the async replication for
Hi. We've been working on the Chef cookbook and Crowbar barclamp for
Ceph for a while now. At the same time, Clint Byrum and James Page
have been working on the Juju Charm, and I've seen at least two
separate efforts for Puppet scripts.
All this time, I've repeatedly gotten one item of feedback,
You can run multiple Ceph clusters on the same hardware. They will
have completely separate monitors, OSDs (including separate data disks
and journals that will not be shared between clusters), MDSs etc.
This provides a higher level of isolation than e.g. just using
multiple RADOS pools and CRUSH
Alright. I've written a few braindumps on OSD hotplugging before, this
is an update on what's in place now, and will hopefully form the core
of the relevant documentation later.
New-school deployments of Ceph have OSDs consume data disks fully --
that is, admin hands off the whole disk, Ceph
On Wed, Oct 17, 2012 at 3:59 PM, John Wilkins john.wilk...@inktank.com wrote:
Are there any issues related to ports or network conflicts?
Yeah, two monitors belonging to different clusters on the same host
are probably going to collide on the listening TCP port, if admin
doesn't explicitly avoid
On Mon, Oct 15, 2012 at 10:04 PM, Lokesh Krishnappa
lokesh.professional...@gmail.com wrote:
am following, the below given link :
https://github.com/ceph/s3-tests for my testing purpose ... and while
am executing the command as:
S3TEST_CONF=example.conf ./virtualenv/bin/nosetests
getting
Hi. While working on the external journal stuff, for a while I thought
I needed more python code than I ended up needing. To support that
code, I put in the skeleton of import ceph.foo support. While I
ultimately didn't need it, I didn't want to throw away the results. If
you later need to have
On Wed, Oct 10, 2012 at 9:23 AM, Sage Weil s...@inktank.com wrote:
I certainly wouldn't recommend it, but there are probably use cases where
it makes sense (i.e., the data isn't as important as the performance).
This would make a lot of sense for e.g. service orchestration-style
setups where
On Tue, Oct 9, 2012 at 9:31 AM, John Axel Eriksson j...@insane.se wrote:
I'm worried that data deleted in radosgw wasn't actually deleted from
disk/cluster.
Are you aware of radosgw-admin temp remove?
I was trying to point you to docs, but couldn't find any, so I filed
On Sat, Oct 6, 2012 at 10:11 PM, ramu eppa ramu.freesyst...@gmail.com wrote:
Hi,
In rbd am creating snapshot and next time i copied data to that snapshot,
it was not copying the data.Please help me to how to copy data to snapshot.
RBD snapshots are immutable by design. You can do a
On Tue, Oct 2, 2012 at 9:55 PM, ramu eppa ramu.freesyst...@gmail.com wrote:
When map rbd to /dev it's giving error,
rbd map /dev/mypool/mytest
The syntax is rbd map mypool/mytest.
http://ceph.com/docs/master/man/8/rbd/
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On Tue, Oct 2, 2012 at 6:13 AM, ramu eppa ramu.freesyst...@gmail.com wrote:
How to know the rbd volume path.
Umm. What is an rbd volume path? If you rbd map it, the block device
will be called /dev/rbd/poolname/imagename -- maybe that's what
you were looking for?
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On Tue, Oct 2, 2012 at 9:56 AM, Gregory Farnum g...@inktank.com wrote:
File /home/lokesh/Downloads/ceph-teuthology-78b7b02/teuthology/misc.py,
line 501, in read_config
ctx.teuthology_config.update(new)
ValueError: dictionary update sequence element #0 has length 1; 2 is
required
I haven't
On Tue, Oct 2, 2012 at 12:48 PM, Mike Ryan mike.r...@inktank.com wrote:
Tried sending this earlier but it seems the list doesn't like PNGs.
dotty or dot -Tpng will make short work of the .dot file I've attached.
vger discards messages with attachments. It's old school mailing list
software.
On Mon, Oct 1, 2012 at 8:38 AM, ramu eppa ramu.freesyst...@gmail.com wrote:
Hi all,
I want write data or text file to rbd pool.Please help me.
You can create objects in RADOS pools with rados put. See
http://ceph.com/docs/master/man/8/rados/ for the documentation.
The rbd pool usually
On Sun, Sep 30, 2012 at 2:55 PM, Andrey Korolyov and...@xdel.ru wrote:
Short post mortem - EX3200/12.1R2.9 may begin to drop packets (seems
to appear more likely on 0.51 traffic patterns, which is very strange
for L2 switching) when a bunch of the 802.3ad pairs, sixteen in my
case, exposed to
On Thu, Sep 27, 2012 at 11:04 AM, Gregory Farnum g...@inktank.com wrote:
However, my suspicion is that you're limited by metadata throughput
here. How large are your files? There might be some MDS or client
tunables we can adjust, but rsync's workload is a known weak spot for
CephFS.
I feel
On Thu, Sep 27, 2012 at 3:52 AM, hemant surale hemant.sur...@gmail.com wrote:
I have upgraded my cluster to Ceph v0.48. and cluster is fine (except
gceph not working) .
gceph has been broken for a long time, wasn't seen to be worth fixing,
and was removed in 0.48argonaut.
How can I direct my
On Wed, Sep 26, 2012 at 10:43 PM, hemant surale hemant.sur...@gmail.com wrote:
root@hemant-virtual-machine:/etc/ceph# mkcephfs -a -c
/etc/ceph/ceph.conf -k ceph.keyring
temp dir is /tmp/mkcephfs.E1M7ay6HBa
preparing monmap in /tmp/mkcephfs.E1M7ay6HBa/monmap
/usr/bin/monmaptool --create
On Mon, Sep 24, 2012 at 3:58 PM, Brice Burgess briceb...@gmail.com wrote:
1. Is it preferable to run the RADOS Gateway on a MDS machine [for latency
...
My assumption is to provision a dedicated machine for the RADOS Gateway. I'd
treat this machine as a front end proxy/caching server meaning it
On Fri, Sep 14, 2012 at 8:51 AM, Travis Rhoden trho...@gmail.com wrote:
On a running Ceph cluster using XFS for the OSD's, is it safe to
defrag the OSD devices while the system is live?
I did a quick check of one device:
xfs_db -c frag -r /dev/sdd
actual 637596, ideal 144935, fragmentation
On Tue, Sep 11, 2012 at 7:22 PM, Jan Engelhardt jeng...@inai.de wrote:
per our short exchange in private, I am taking to spruce up the
ceph build system definitions. First comes leveldb, more shall
follow soonish.
Thanks!
Patches #1–2 are mandatory for continued successful operation,
#3–5
On Wed, Sep 12, 2012 at 1:15 PM, sheng qiu herbert1984...@gmail.com wrote:
may i ask which part of codes within ceph deal with the distribution
of workloads among the OSDs? i am interested in ceph's source codes
and want to understand that part of codes.
You want to read the academic papers on
On Wed, Sep 12, 2012 at 1:27 PM, sheng qiu herbert1984...@gmail.com wrote:
actually i have read both these two papers. i understand the theory
but just curious about how is it implemented within the codes. i
looked into the ceph source codes, it seems very complicated for me.
The CRUSH library
On Wed, Sep 12, 2012 at 10:33 AM, Andrey Korolyov and...@xdel.ru wrote:
Hi,
This is completely off-list, but I`m asking because only ceph trigger
such a bug :) .
With 0.51, following happens: if I kill an osd, one or more neighbor
nodes may go to hanged state with cpu lockups, not related to
On Tue, Sep 11, 2012 at 9:09 AM, Sage Weil s...@inktank.com wrote:
I pushed a wip-crush branch that implements 'ceph osd crush create-or-move
...'. I don't think it's worth backporting this to argonaut, since the
user is actually in the deploy scripts, so any chef/juju/whatever won't
care if
On Mon, Sep 10, 2012 at 8:54 PM, sheng qiu herbert1984...@gmail.com wrote:
i have a simple question.
for distribution workload among OSDs, does ceph do any online modeling
for OSDs, i.e. collect the online IO latency and try to distribute
more workloads to lower latency OSDs? or only based on
On Thu, Sep 6, 2012 at 11:51 AM, Jimmy Tang jt...@tchpc.tcd.ie wrote:
Also, the ceph osd setcrushmap... command doesn't up when a ceph
--help is run in the 0.51 release, however it is documented on the
wiki as far as I recall. It'd be real nice if the applications emitted
all the available
On Wed, Sep 5, 2012 at 8:28 AM, Wido den Hollander w...@widodh.nl wrote:
You can only specify one monitor in CloudStack, but your cluster can have
multiple.
This is due to the internals of CloudStack. It stores storage pools in a URI
format, like: rbd://admin:secret@1.2.3.4/rbd
You know, for
On Tue, Sep 4, 2012 at 4:26 PM, Smart Weblications GmbH - Florian
Wiessner f.wiess...@smart-weblications.de wrote:
i set up a 3 node ceph cluster 0.48.1argonaut to test ceph-fs.
i mount ceph via fuse, then i downloaded kernel tree and decompressed a few
times, then stopping one osd (osd.1),
On Wed, Sep 5, 2012 at 5:35 AM, Wido den Hollander w...@widodh.nl wrote:
I also thought it is on the roadmap to not read /etc/ceph/ceph.conf by
default with librbd/librados to take away these kind of issues.
Hmm. I'm not intimately familiar with librbd, but it seems it just
takes RADOS ioctx as
On Wed, Sep 5, 2012 at 9:40 AM, Tommi Virtanen t...@inktank.com wrote:
On Wed, Sep 5, 2012 at 5:35 AM, Wido den Hollander w...@widodh.nl wrote:
I also thought it is on the roadmap to not read /etc/ceph/ceph.conf by
default with librbd/librados to take away these kind of issues.
Hmm. I'm
On Wed, Sep 5, 2012 at 10:05 AM, Wido den Hollander w...@widodh.nl wrote:
For example, rbd:?id=adminsecret=s3kr1tmon=1.2.3.4mon=5.6.7.8pool=rbd
is perfectly legal.
Whether some Java library fails to implement generic URIs is another
concern..
It is indeed a Java library in this case:
On Wed, Sep 5, 2012 at 3:39 PM, Wido den Hollander w...@widodh.nl wrote:
The main problem with that is how CloudStack internally stores the data. At
the storage driver the URI doesn't arrive in plain format, it gets splitted
with getHost(), getAuthUsername(), getPath() and arrives in these
On Fri, Aug 31, 2012 at 11:02 PM, Ryan Nicholson
ryan.nichol...@kcrg.com wrote:
Secondly: Through some trials, I've found that if one loses all of his
Monitors in a way that they also lose their disks, one basically loses their
cluster. I would like to recommend a lower priority shift in
On Fri, Aug 31, 2012 at 11:58 PM, Andrew Thompson andre...@aktzero.com wrote:
Looking at old archives, I found this thread which shows that to mount a
pool as cephfs, it needs to be added to mds:
http://permalink.gmane.org/gmane.comp.file-systems.ceph.devel/5685
I started a `rados cppool
On Sun, Sep 2, 2012 at 6:36 AM, Nick Couchman nick.couch...@seakr.com wrote:
One additional piece of info...I did find the -d flag (documented in the
radosgw-admin man page, but not in the radosgw man page) that keeps the
daemon in the foreground and prints messages to stderr. When I use
On Tue, Sep 4, 2012 at 9:19 AM, Andrew Thompson andre...@aktzero.com wrote:
Yes, it was my `data` pool I was trying to grow. After renaming and removing
the original data pool, I can `ls` my folders/files, but not access them.
Yup, you're seeing ceph-mds being able to access the metadata pool,
On Fri, Aug 31, 2012 at 10:37 AM, Stephen Perkins perk...@netmass.com wrote:
Would this require 2 clusters because of the need to have RADOS keep N
copies on one and 1 copy on the other?
That's doable with just multiple RADOS pools, no need for multiple clusters.
And CephFS is even able to
On Fri, Aug 31, 2012 at 11:59 AM, Atchley, Scott atchle...@ornl.gov wrote:
I think what he is looking for is not to bring data to a client to convert
from replication to/from erasure coding, but to have the servers do it based
on some metric _or_ have the client indicate which file needs to
Hi. I'm trying to improve the admin key management, and change how we
use client.admin. I'd appreciate if you could review the branch and
the somewhat unrelated ticket http://tracker.newdream.net/issues/3065
.
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On Wed, Aug 29, 2012 at 12:46 AM, hemant surale hemant.sur...@gmail.com wrote:
Hi Tommi ,
Actually I was thinking of Availability of related files to
particular host. I wanted to guide ceph in some way to store related
files for host on his local osd so that I/O over network can be
On Wed, Aug 29, 2012 at 9:40 AM, Wido den Hollander w...@widodh.nl wrote:
Huh ... I've never heard this. Also the guys in ##xen haven't either.
I'm not really involved in xen dev and don't follow it closely but
that seems unlikely. The few slides I looked at from the Xen Summit a
couple days
On Wed, Aug 29, 2012 at 9:42 AM, Wido den Hollander w...@widodh.nl wrote:
So you are trying to decrease the number of PGs.
Now, I'm not sure if that is supported. But why would you want to do this?
Support for pg shrinking will come pretty much exactly at the same
time as support for pg
On Tue, Aug 28, 2012 at 1:38 PM, Tim Flavin tim.fla...@gmail.com wrote:
Sage: Yes I tried that.
I wonder if the journal file exists..
osd journal = /user1/log
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On Tue, Aug 28, 2012 at 5:03 PM, Florian Haas flor...@hastexo.com wrote:
I for my part, in the documentation space, would love for the admin
tools to become self-documenting. For example, I would love a help
subcommand at any level of the ceph shell, listing the supported
subcommands in that
On Fri, Aug 24, 2012 at 8:49 AM, Stephen Perkins perk...@netmass.com wrote:
I'd like to get feedback from folks as to where the best place would be to
insert a shim into the RADOS object storage.
...
I would assume that it is possible to configure RADOS to store only 1 copy
of a file (bear
On Wed, Aug 22, 2012 at 9:23 AM, Denis Fondras c...@ledeuns.net wrote:
Are you sure your osd data and journal are on the disks you think? The
/home paths look suspicious -- especially for journal, which often
should be a block device.
I am :)
...
-rw-r--r-- 1 root root 1048576000 août 22
On Wed, Aug 22, 2012 at 12:12 PM, Dieter Kasper (KD)
d.kas...@kabelmail.de wrote:
Your journal is a file on a btrfs partition. That is probably a bad
idea for performance. I'd recommend partitioning the drive and using
partitions as journals directly.
can you please teach me how to use the
On Mon, Aug 20, 2012 at 1:30 PM, Mandell Degerness
mand...@pistoncloud.com wrote:
Is there now, or will there be a migration path that works to add
existing OSDs to the function such that future calls to ceph osd
create uuid return the current OSD number used in an existing
configuration? I
On Wed, Aug 15, 2012 at 9:44 PM, hemant surale hemant.sur...@gmail.com wrote:
Hello Tommi, Ceph community
I did mkdir the directory. Infact I have created a new partition by
the same name and formatted using ext3. I also executed the following
command for the partition/directory:
mount -o
On Thu, Aug 16, 2012 at 12:38 PM, Travis Rhoden trho...@gmail.com wrote:
I've seen a couple threads in the past about /etc/init.d/ceph not
working right when the output of 'hostname' did not match the 'host'
entry in ceph.conf. I'm hoping you can advise me on how to get the
following setup
On Thu, Aug 9, 2012 at 8:42 AM, Danny Kukawka danny.kuka...@bisect.de wrote:
Remove btrfs specific keys and replace them by more generic
keys to be able to replace btrfs with e.g. xfs or ext4 easily.
Add new key to define the osd fs type: 'fstype', which can get
defined in the [osd] section
On Thu, Aug 9, 2012 at 9:46 AM, Jim Schutt jasc...@sandia.gov wrote:
I'm embarrassed to admit I haven't been keeping up with this,
but I seem to recall that early versions didn't handle a
journal on a partition. Did I get that wrong, or maybe that
capability exists now? In the past I've
On Thu, Aug 9, 2012 at 9:49 AM, Danny Kukawka danny.kuka...@bisect.de wrote:
And where can I find this new OSD hotplugging style init? Is there any
documentation?
mkcephfs does not use the new style. The Chef cookbooks we have do. If
you use the Juju Charms that Canonical has been working on,
On Tue, Aug 7, 2012 at 6:51 AM, Jonathan D. Proulx j...@csail.mit.edu wrote:
:Juju seems to provide a real-time notification mechanism between
:peers, using it's name-relation-changed hook. Other CM frameworks
:may need to step up their game, or be subject to the keep re-running
:chef-client
On Thu, Aug 9, 2012 at 10:03 AM, Danny Kukawka danny.kuka...@bisect.de wrote:
So you mean chef?! Will there be an alternative to simply setup a
cluster from console?
We (SUSE) are already working on an own chef ceph cookbook. But from
what I've seen till now it's really hard and more
On Mon, Aug 6, 2012 at 2:07 PM, Matthew Roy imjustmatt...@gmail.com wrote:
On Mon, Aug 6, 2012 at 11:55 AM, Tommi Virtanen t...@inktank.com wrote:
Do you have the file keyring in your
mon data dir, and does it contain a [mon.] section? If so, that
section is what you need in /tmp/monkey
On Thu, Aug 2, 2012 at 3:48 AM, Wido den Hollander w...@widodh.nl wrote:
Signed-off-by: Wido den Hollander w...@widodh.nl
---
doc/source/clone-source.rst |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/doc/source/clone-source.rst b/doc/source/clone-source.rst
index
On Wed, Aug 1, 2012 at 4:27 PM, Mandell Degerness
mand...@pistoncloud.com wrote:
As of this time, we are allocating OSD numbers based on servers. The
ceph osd create command seems like it may be useful, but is not
documented nearly well enough yet. Can someone please provide answers
to the
On Tue, Jul 31, 2012 at 6:59 AM, Mehdi Abaakouk sil...@sileht.net wrote:
Hi,
I have taken a look into teuthology, the automation of all this tests
are good, but are they any way to run it into a already installed
ceph clusters ?
Thanks in advance.
Many of the actual tests being run are
On Tue, Jul 31, 2012 at 12:31 AM, eric_yh_c...@wiwynn.com wrote:
If the performance of rbd device is n MB/s under replica=2,
then that means the total io throughputs on hard disk is over 3 * n MB/s.
Because I think the total number of copies is 3 in original.
So, it seems not correct now,
On Tue, Jul 31, 2012 at 2:18 AM, ramu ramu.freesyst...@gmail.com wrote:
I want to integrate ceph with opendedup(sdfs) using java-rados.
Please help me to integration of ceph with opendedup.
It sounds like you could use radosgw and just use S3ChunkStore.
If you really want to implement your own
On Tue, Jul 24, 2012 at 6:15 AM, loic.dach...@enovance.com wrote:
Note that if puppet client was run on nodeB before it was run on nodeA, all
three steps would have been run in sequence instead of being spread over two
puppet client invocations.
Unfortunately, even that is not enough.
The
On Tue, Jul 31, 2012 at 11:51 AM, Sage Weil s...@inktank.com wrote:
It is also possible to feed initial keys to the monitors during the 'mkfs'
stage. If the keys can be agreed on somehow beforehand, then they will
already be in place when the initial quorum is reached. Not sure if that
helps
On Mon, Jul 30, 2012 at 12:58 AM, 袁冬 yuandong1...@gmail.com wrote:
I deploy an instance including 1 mon, 1 osd and 1 radosgw on one
machine which based on CentOS 6.2. I can access the system from
browser(Chrome) which tells me that: no bucket for anonymous user.
I think I get everything fine,
On Fri, Jul 27, 2012 at 6:07 AM, Yann Dupont yann.dup...@univ-nantes.fr wrote:
My ceph cluster is made of 8 OSD with quite big storage attached.
All OSD nodes are equal, except 4 OSD have 6,2 TB, 4 have 8 TB storage.
Sounds like you should just set the weights yourself, based on the
capacities
On Wed, Jul 25, 2012 at 1:25 PM, Gregory Farnum g...@inktank.com wrote:
Yeah, an average isn't necessarily very useful here — it's what you
get because that's easy to implement (with a sum and a counter
variable, instead of binning). The inclusion of max and min latencies
is an attempt to
On Tue, Jul 24, 2012 at 8:55 AM, Mark Nelson mark.nel...@inktank.com wrote:
personally I think it's fine to have it on the wiki. I do want to stress
that performance is going to be (hopefully!) improving over the next couple
of months so we will probably want to have updated results (or at
On Sun, Jul 22, 2012 at 11:57 PM, Sławomir Skowron szi...@gmail.com wrote:
My workload looks like this:
- Max 20% are PUTs, with 99% of objects smaller then 4MB,
- 80% are GETs, and S3 metadata operations.
Well, the good news is that that's actually the easy to fix part --
just increase the
On Fri, Jul 20, 2012 at 9:17 AM, Vladimir Bashkirtsev
vladi...@bashkirtsev.com wrote:
not running. So I ended up rebooting hosts and that's where fun begin: btrfs
has failed to umount , on boot up it spit out btrfs: free space inode
generation (0) did not match free space cache generation
On Fri, Jul 20, 2012 at 8:31 AM, Sławomir Skowron szi...@gmail.com wrote:
I know that this feature is disabled, are you planning to enable this
in near future ??
PG splitting/joining is the next major project for the OSD. It won't
be backported to argonaut, but it will be in the next stable
On Fri, Jul 20, 2012 at 3:04 PM, Gregory Farnum g...@inktank.com wrote:
If I remember mkcephfs correctly, it deliberately does not create the
directories for each store (you'll notice that
http://ceph.com/docs/master/start/quick-start/#deploy-the-configuration
includes creating the directory
On Thu, Jul 19, 2012 at 8:26 AM, Sébastien Han han.sebast...@gmail.com wrote:
Ok I got your point seems logic, but why is this possible with LVM for
example?
You can easily do this with LVM without un-mounting the device.
Do your LVM volumes have partition tables inside them? That might be
On Thu, Jul 19, 2012 at 8:38 AM, Tommi Virtanen t...@inktank.com wrote:
Do your LVM volumes have partition tables inside them? That might be
the difference.
Of course, you can put your filesystem straight on the RBD; that would
be a good experiment to run.
Oops, I see you did put your fs
On Thu, Jul 19, 2012 at 5:19 AM, Vladimir Bashkirtsev
vladi...@bashkirtsev.com wrote:
Look like that osd.0 performs with low latency but osd.1 latency is way too
high and on average it appears as 200ms. osd is backed by btrfs over LVM2.
May be issue lie in backing fs selection? All four osds
On Wed, Jul 18, 2012 at 6:58 AM, François Charlier
francois.charl...@enovance.com wrote:
I'm currently working on writing a Puppet module for Ceph.
As after some research I found no existing module, I'll start from
scratch but I would be glad to hear from people who would already have
started
On Wed, Jul 18, 2012 at 2:59 PM, Teyo Tyree t...@puppetlabs.com wrote:
As you probably know, Puppet Labs is based in Portland. Are you attending
OScon? It might be a good opportunity for us to have some face to face
hacking time on a Puppet module. Let me know if you would like for us to
On Wed, Jul 18, 2012 at 3:26 PM, Teyo Tyree t...@puppetlabs.com wrote:
Ha, that would be an interesting experiment indeed. I think Francois would
like to have the Puppet module done sooner rather than later. Are the
current Chef cookbooks functional enough for us to get started with them as
a
On Mon, Jul 16, 2012 at 5:21 PM, Australian Jade
sa...@australianjade.com wrote:
all in vain. I also noticed that when hold up on interface happened pings
come back with second difference: ie they piling up on interface and then
suddenly sent through all at once and remote host returns all of
On Mon, Jul 16, 2012 at 3:43 PM, Josh Durgin josh.dur...@inktank.com wrote:
I've made this mistake a couple of times now (completely my fault,
when will I learn?), and am wondering if a bit of protection can be
put in place against user errors.
Yeah, we've been working on advisory locking. The
On Fri, Jul 13, 2012 at 12:07 PM, Matt Weil mw...@genome.wustl.edu wrote:
Is it possible to get IO sizes 1024k and larger?
Can you be a bit more explicit in what you're asking?
Are you talking about submitting IO to RBD (via the kernel module?
inside a qemu vm?), are you talking about using the
On Fri, Jul 13, 2012 at 5:01 PM, Noah Watkins jayh...@cs.ucsc.edu wrote:
Stores absolute path to the generated keyring so that tests running in
other directories (e.g. src/java/test) can simply reference the
generated ceph.conf.
Perhaps relative paths in ceph.conf should be interpreted as
On Wed, Jul 11, 2012 at 9:41 PM, Josh Durgin josh.dur...@inktank.com wrote:
You're right about the object name - you can get its offset in the
image that way. Since rbd is thin-provisioned, however, the highest
index object might not be the highest possible object. When you first
create an
On Wed, Jul 11, 2012 at 9:28 AM, Josh Durgin josh.dur...@inktank.com wrote:
This all makes sense, but maybe we should put the -part suffix in
another namespace to avoid colliding with images that happen to have
-partN in their name, e.g.:
/dev/rbd/mypool/myrbd/part1 - /dev/rbd3p1
Good
On Tue, Jul 10, 2012 at 2:46 AM, Yann Dupont yann.dup...@univ-nantes.fr wrote:
As I've keeped the original broken btrfs volumes, I tried this morning to
run the old osd in parrallel, using the $cluster variable. I only have
partial success.
The cluster mechanism was never intended for moving
Hi. I stumbled on this over the weekend, and thought people here might
be interested in seeing whether it's useful in figuring out things
like btrfs health:
http://code.google.com/p/ioping/
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On Tue, Jul 10, 2012 at 9:39 AM, Yann Dupont yann.dup...@univ-nantes.fr wrote:
The cluster mechanism was never intended for moving existing osds to
other clusters. Trying that might not be a good idea.
Ok, good to know. I saw that the remaining maps could lead to problem, but
in 2 words, what
On Tue, Jul 10, 2012 at 10:36 AM, Yann Dupont
yann.dup...@univ-nantes.fr wrote:
Fundamentally, it comes down to this: the two clusters will still have
the same fsid, and you won't be isolated from configuration errors or
(CEPH-PROD is the old btrfs volume ). /CEPH is new xfs volume, completely
On Wed, Jul 4, 2012 at 1:06 AM, Yann Dupont yann.dup...@univ-nantes.fr wrote:
Well, I probably wasn't clear enough. I talked about crashed FS, but i was
talking about ceph. The underlying FS (btrfs in that case) of 1 node (and
only one) has PROBABLY crashed in the past, causing corruption in
On Mon, Jul 9, 2012 at 12:05 PM, Yann Dupont yann.dup...@univ-nantes.fr wrote:
The information here isn't enough to say whether the cause of the
corruption is btrfs or LevelDB, but the recovery needs to handled by
LevelDB -- and upstream is working on making it more robust:
On Tue, Jul 3, 2012 at 9:35 AM, David Blundell
david.blund...@100percentit.com wrote:
We switched to Ubuntu 12.04 for the tests which stopped all btrfs problems.
We have now spent a week running the iotester corruption tests in KVM
instances while live migrating them every 5 minutes (with and
On Tue, Jul 3, 2012 at 1:40 AM, Yann Dupont yann.dup...@univ-nantes.fr wrote:
Upgraded the kernel to 3.5.0-rc4 + some patches, seems btrfs is OK right
now.
Tried to restart osd with 0.47.3, then next branch, and today with 0.48.
4 of 8 nodes fails with the same message :
ceph version
On Tue, Jul 3, 2012 at 1:54 PM, Yann Dupont yann.dup...@univ-nantes.fr wrote:
In the case I could repair, do you think a crashed FS as it is right now is
valuable for you, for future reference , as I saw you can't reproduce the
problem ? I can make an archive (or a btrfs dump ?), but it will be
On Wed, Jun 27, 2012 at 10:05 PM, ramu ramu.freesyst...@gmail.com wrote:
+ ssh gamma cd /etc/ceph ; ulimit -c unlimited ; while [ 1 ]; do
[ -e /var/run/ceph/osd.1.pid ] || break
pid=`cat /var/run/ceph/osd.1.pid`
while [ -e /proc/$pid ] grep -q ceph-osd /proc/$pid/cmdline
On Mon, Jun 25, 2012 at 10:48 PM, Stefan Priebe s.pri...@profihost.ag wrote:
Strange just copied /core.hostname and /usr/bin/ceph-osd no idea how this
can happen. For building I use the provided Debian scripts.
Perhaps you upgraded the debs but did not restart the daemons? That
would make the
On Sat, Jun 23, 2012 at 3:43 AM, David Blundell
david.blund...@100percentit.com wrote:
The logs on all three servers are full of messages like:
Jun 23 04:02:19 Store2 kernel: [63811.494955] ceph-osd: page allocation
failure: order:3, mode:0x4020
The difference between the lines is that
On Sat, Jun 23, 2012 at 11:42 AM, Igor Laskovy igor.lask...@gmail.com wrote:
Hi all from hot Kiev))
Does anybody use Ceph as a backend storage for NOVA-INST-DIR/instances/ ?
Is it in production use? Live migration is still possible?
I kindly ask any advice of best practices point of view.
On Fri, Jun 22, 2012 at 7:36 AM, Guido Winkelmann
guido-c...@thisisnotatest.de wrote:
rbd: Cannot unpreserve: Still in use by pool2/image2
What if it's in use by a lot of images? Should it print them all, or should it
print something like Still in use by pool2/image2 and 50 others, use
On Thu, Jun 21, 2012 at 2:51 PM, Alex Elder el...@dreamhost.com wrote:
Before cloning a snapshot, you must mark it as preserved, to prevent
it from being deleted while child images refer to it:
::
$ rbd preserve pool/image@snap
Why is it necessary to do this? I think it may be
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