On Sun, 4 Nov 2012, Nick Bartos wrote:
Unfortunately I'm still seeing deadlocks. The trace was taken after a
'sync' from the command line was hung for a couple minutes.
There was only one debug message (one fs on the system was mounted with
'mand'):
This was with the updated patch
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Hash: SHA256
Hi Wido
On 04/11/12 21:54, Wido den Hollander wrote:
I've started to put together a Launchpad Blueprint to act as a
placeholder for discussion at the Ubuntu Developer Summit in a
couple of weeks time.
I'd be interested in feedback on what
Hi,
In light of #cephday I noticed something that struck me as odd. The
presenation listed the following as the RADOS extensions directory (if I
recall correctly):
/var/lib/rados/*.so
However, it's very atypical to have shared libraries in /var. As far as
I know /var/lib is typically used
Hello list,
while updating ceph to the latest master i noticed this:
Commit a01b112d71a0b6a1bb206d53867d13536d17bbf6:
rand. 4k WRITE: 3000 iop/s
Commit 72a710ac47355ae3ca1d055be1496c91956d549d:
rand. 4k WRITE: 900 iop/s
Same for rand 4k read - haven't tested sequential stuff.
Stefan
--
To
Am 05.11.2012 11:39, schrieb Stefan Priebe - Profihost AG:
Hello list,
while updating ceph to the latest master i noticed this:
Commit a01b112d71a0b6a1bb206d53867d13536d17bbf6:
rand. 4k WRITE: 3000 iop/s
Commit 72a710ac47355ae3ca1d055be1496c91956d549d:
rand. 4k WRITE: 900 iop/s
Same for rand
Hi,
On 05-11-12 08:14, Andrew Thrift wrote:
Hi,
We are evaluating CEPH for deployment.
I was wondering if there are any current best practices around the
number of OSD's per node ?
e.g. We are looking at deploying 3 nodes, each with 72x SAS disks, and
2x 10gigabit Ethernet bonded.
Would
On 05-11-12 05:55, hemant surale wrote:
Hi Community,
I want to know that is there any compatibility chart between
UBUNTU kernel version ceph v 0.51 ?
Or does anyone know best suite kernel version of UBUNTU with ceph v0.51.
Till now I was working with UBUNTU 12.04 kernel 3.2.0
On 05-11-12 10:30, Pascal de Bruijn wrote:
Hi,
In light of #cephday I noticed something that struck me as odd. The
presenation listed the following as the RADOS extensions directory (if I
recall correctly):
/var/lib/rados/*.so
/var/lib/rados-classes/*.so
It's handled by this configuration
Hello list,
is the following syntax to use the new rbd v2 striping feature correct?
rbd create -p kvmstor --format 2 --size 32000 --stripe-count 8
--stripe-unit 131072 -s 1048576 $imagename
Idea is to have 8 stripes per 1MB object size. Or are there any other
recommondations regarding
Hi,
Also, I assume those pools will actually be pretty small and so I can
just leave them with PG_NUM=8 without much issue ?
Data will not be distributed evenly across the cluster, and there may
be a high contention on these pgs so it'd affect performance.
But what is stored in those
On 11/05/2012 05:01 AM, Wido den Hollander wrote:
Hi,
On 05-11-12 08:14, Andrew Thrift wrote:
Hi,
We are evaluating CEPH for deployment.
I was wondering if there are any current best practices around the
number of OSD's per node ?
e.g. We are looking at deploying 3 nodes, each with 72x SAS
Hello list,
Is there a way to change the number of pg_num / pgp_num after adding
more osds?
I mean i would like to start with 16 OSDs but i think i'll expand over
time to up to 100 OSDs. So i think i need to tune pg_num / pgp_num.
Greets,
Stefan
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Hello list,
right now i'm testing rbd block devices with kvm using Default cache (no
cache).
Is there any recommanded value for RBD? (i don't wanna loose data)
Stefan
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the body of a message to majord...@vger.kernel.org
Hi,
I'm thinking about building a ceph cluster and I'm wondering what a good
configuration would look like for 4-8 (and maybe more) 2HU 8-disk or 3HU
16-disk systems.
Would it make sense to make each disk an individual OSD or should I perhaps
create several raid-0 and create OSDs from those?
Also
On Mon, 5 Nov 2012, Yan, Zheng wrote:
On Mon, Nov 5, 2012 at 12:45 AM, Sage Weil s...@inktank.com wrote:
On Sun, 4 Nov 2012, Yan, Zheng wrote:
Short write happens when we fail to get 'Fb' cap for all pages. Why
shouldn't
we fall back to sync write, I think some user programs assume
Am 05.11.2012 11:39, schrieb Stefan Priebe - Profihost AG:
Hello list,
while updating ceph to the latest master i noticed this:
Commit a01b112d71a0b6a1bb206d53867d13536d17bbf6:
rand. 4k WRITE: 3000 iop/s
Commit 72a710ac47355ae3ca1d055be1496c91956d549d:
rand. 4k WRITE: 900 iop/s
Same for rand
On Thu, 1 Nov 2012, Yan, Zheng wrote:
From: Yan, Zheng zheng.z@intel.com
Both CInode and CDentry's versionlocks are of type LocalLock.
Acquiring LocalLock in replica object is useless and problematic.
For example, if two requests try acquiring a replica object's
versionlock, the first
On 11/04/2012 03:42 AM, Sage Weil wrote:
The wip-explicit-pgnum changes the 'ceph osd pool create name pgnum'
command to require the pg_num value instead of defaulting to 8. This
would make it harder for users to get this wrong.
I like this. It'd be great if we could add a pgnum argument to
On 11/05/2012 12:48 PM, Stefan Priebe wrote:
Am 05.11.2012 11:39, schrieb Stefan Priebe - Profihost AG:
Hello list,
while updating ceph to the latest master i noticed this:
Commit a01b112d71a0b6a1bb206d53867d13536d17bbf6:
rand. 4k WRITE: 3000 iop/s
Commit
Am 05.11.2012 19:58, schrieb Mark Nelson:
On 11/05/2012 12:48 PM, Stefan Priebe wrote:
Am 05.11.2012 11:39, schrieb Stefan Priebe - Profihost AG:
Hello list,
while updating ceph to the latest master i noticed this:
Commit a01b112d71a0b6a1bb206d53867d13536d17bbf6:
rand. 4k WRITE: 3000 iop/s
Am 04.11.2012 15:12, schrieb Sage Weil:
On Sun, 4 Nov 2012, Stefan Priebe wrote:
Can i merge wip-rbd-read into master?
Yeah. I'm going to do a bit more testing first before I do it, but it
should apply cleanly. Hopefully later today.
Thanks - seems to be fixed with wip-rbd-read but i have
On Mon, 5 Nov 2012, Josh Durgin wrote:
On 11/04/2012 03:42 AM, Sage Weil wrote:
The wip-explicit-pgnum changes the 'ceph osd pool create name pgnum'
command to require the pg_num value instead of defaulting to 8. This
would make it harder for users to get this wrong.
I like this. It'd
On 11/05/2012 04:03 AM, Stefan Priebe - Profihost AG wrote:
Hello list,
is the following syntax to use the new rbd v2 striping feature correct?
rbd create -p kvmstor --format 2 --size 32000 --stripe-count 8
--stripe-unit 131072 -s 1048576 $imagename
Idea is to have 8 stripes per 1MB object
Am 05.11.2012 20:33, schrieb Stefan Priebe:
Am 04.11.2012 15:12, schrieb Sage Weil:
On Sun, 4 Nov 2012, Stefan Priebe wrote:
Can i merge wip-rbd-read into master?
Yeah. I'm going to do a bit more testing first before I do it, but it
should apply cleanly. Hopefully later today.
Thanks -
On Fri, 1 Jun 2012 11:35:37 +0200 Amon Ott a@m-privacy.de wrote:
After backporting syncfs() support into Debian stable libc6 2.11 and
recompiling Ceph with it, our test cluster is now running with syncfs().
Hi,
We're running OSDs on top of Debian wheezy, which unfortunately has
On Mon, Nov 5, 2012 at 11:33 PM, Stefan Priebe s.pri...@profihost.ag wrote:
Am 04.11.2012 15:12, schrieb Sage Weil:
On Sun, 4 Nov 2012, Stefan Priebe wrote:
Can i merge wip-rbd-read into master?
Yeah. I'm going to do a bit more testing first before I do it, but it
should apply cleanly.
Am 05.11.2012 21:20, schrieb Andrey Korolyov:
On Mon, Nov 5, 2012 at 11:33 PM, Stefan Priebe s.pri...@profihost.ag wrote:
Am 04.11.2012 15:12, schrieb Sage Weil:
On Sun, 4 Nov 2012, Stefan Priebe wrote:
Can i merge wip-rbd-read into master?
Yeah. I'm going to do a bit more testing first
Am 05.11.2012 20:33, schrieb Stefan Priebe:
Am 04.11.2012 15:12, schrieb Sage Weil:
On Sun, 4 Nov 2012, Stefan Priebe wrote:
Can i merge wip-rbd-read into master?
Yeah. I'm going to do a bit more testing first before I do it, but it
should apply cleanly. Hopefully later today.
Thanks -
On 11/05/2012 06:14 AM, Stefan Priebe - Profihost AG wrote:
Hello list,
Is there a way to change the number of pg_num / pgp_num after adding
more osds?
The pg_num/pgp_num settings are only used by mkcephfs at install time.
I mean i would like to start with 16 OSDs but i think i'll expand
On Mon, Nov 5, 2012 at 4:11 AM, Sylvain Munaut
s.mun...@whatever-company.com wrote:
Hi,
Also, I assume those pools will actually be pretty small and so I can
just leave them with PG_NUM=8 without much issue ?
Data will not be distributed evenly across the cluster, and there may
be a high
Mark, Wido,
Thank you very much for your informed responses.
What you have mentioned makes a lot of sense.
If we had a single node completely fail, we would have 72TB of data that
needed to be replicated to a new OSD. This would take approximately
10.5 hours to complete over 2x Bonded 10gig
Hi Greg,
I'm not familiar with Python packaging, can you talk about this a bit more?
I'd be happy to. PyPI (the Python Package Index) is a repo on
python.org for distributing/sharing Python projects. People can
publish their code onto it for others to download. If you are a Perl
guy, it's a
On Sat, Nov 3, 2012 at 2:59 PM, Sage Weil s...@inktank.com wrote:
On Fri, 2 Nov 2012, Travis Rhoden wrote:
Hi folks,
Are there any plans to release python-ceph to pypi? It would be nice
to see it packaged up in distutils/egg format and added to pypi, that
way other python packages can list
On 11/06/2012 01:14 AM, Josh Durgin wrote:
On 11/05/2012 09:13 AM, Dennis Jacobfeuerborn wrote:
Hi,
I'm thinking about building a ceph cluster and I'm wondering what a good
configuration would look like for 4-8 (and maybe more) 2HU 8-disk or 3HU
16-disk systems.
Would it make sense to make
Hello list,
is there any recommendation regarding fs? I mean btrfs is still experimental
would you still use it with ceph in production? Do I need big metadata with
btrfs? (seems to make btrfs slow)
Greets
Stefan--
To unsubscribe from this list: send the line unsubscribe ceph-devel in
the body
Am 06.11.2012 00:45, schrieb Josh Durgin:
On 11/05/2012 06:14 AM, Stefan Priebe - Profihost AG wrote:
Hello list,
Is there a way to change the number of pg_num / pgp_num after adding
more osds?
The pg_num/pgp_num settings are only used by mkcephfs at install time.
I mean i would like to
Am 06.11.2012 00:57, schrieb Josh Durgin:
On 11/05/2012 06:53 AM, Stefan Priebe - Profihost AG wrote:
Hello list,
right now i'm testing rbd block devices with kvm using Default cache (no
cache).
Is there any recommanded value for RBD? (i don't wanna loose data)
It acts like a well-behaved
Am 06.11.2012 01:14, schrieb Josh Durgin:
On 11/05/2012 09:13 AM, Dennis Jacobfeuerborn wrote:
Hi,
I'm thinking about building a ceph cluster and I'm wondering what a good
configuration would look like for 4-8 (and maybe more) 2HU 8-disk or 3HU
16-disk systems.
Would it make sense to make each
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