Am 21.05.2012 20:13, schrieb Gregory Farnum:
On Sat, May 19, 2012 at 1:37 AM, Stefan Priebe s.pri...@profihost.ag wrote:
So would you recommand a fast (more ghz) Core i3 instead of a single xeon
for this system? (price per ghz is better).
If that's all the MDS is doing there, probably? (It
One more thing:
=== osd.0 ===
2012-05-22 10:14:09.801059 7ffc4414a780 -1 filestore(/vol0/data/osd.0)
leveldb db created
2012-05-22 10:14:09.804227 7ffc4414a780 -1 filestore(/vol0/data/osd.0)
limited size xattrs -- enable filestore_xattr_use_omap
2012-05-22 10:14:09.804250 7ffc4414a780 -1
On Mon, 21 May 2012, Gregory Farnum wrote:
This one the write is considered safe once it is on-disk on all
OSDs currently responsible for hosting the object.
Is it possible to configure the client to consider the write successful
when the data is hitting RAM on all the OSDs but not yet
Hi, I have some questions about disabling write cache
http://ceph.com/docs/master/config-cluster/file-system-recommendations/
Ceph aims for data safety, which means that when the application receives
notice that data was written to the disk, that data was actually written to the
disk. For old
Hi,
the ceph init script seems to be broken - at least under debian lenny.
It does simply nothing on a configured osd / mon server, so while system
start the daemons won't start. Ow do i have to configure the hostname to
match anything special in ceph.conf?
[root@system123 /etc]#
Hi,
Same issue for me under debian wheezy.
Greets,
Benoît
Le 22/05/2012 12:05, Stefan Priebe - Profihost AG a écrit :
Hi,
the ceph init script seems to be broken - at least under debian lenny.
It does simply nothing on a configured osd / mon server, so while system
start the daemons
2012/5/21 Miao Xie mi...@cn.fujitsu.com:
Hi Josef,
On fri, 18 May 2012 15:01:05 -0400, Josef Bacik wrote:
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index 9b9b15f..492c74f 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -57,9 +57,6 @@ struct
Hi all:
According to the document, snapshot in RBD is Read-only.
That is to say, if I want to clone the image, I should use
rbd_copy. Right?
I am curious about if this function is optimized, ex: copy-on-write,
to speed up the performance.
What I want to do is to integrate
Hi,
At this moment there's no support to clone images in RBD. Only way to
create new image is to copy the old one through client interface .
Sage mentioned that new release will included image layering
which will be copy-on-write cloning implementation.
On Tue, May 22, 2012 at 12:39 PM,
Tommi Virtanen tommi.virtanen at dreamhost.com writes:
You don't mount pools directly; there's filesystem metadata (as
managed by metadata servers) that is needed too.
What you probably want is to specify that a subtree of your ceph dfs
stores the file data in a separate pool, using cephfs
On 08/05/12 01:26, Sage Weil wrote:
On Mon, 7 May 2012, Vladimir Bashkirtsev wrote:
On 20/04/12 14:41, Sage Weil wrote:
On Fri, 20 Apr 2012, Vladimir Bashkirtsev wrote:
Dear devs,
First of all I would like to bow my head at your great effort! Even if
ceph
did not reach prime time status yet
Hi list,
my ceph block testcluster is now running fine.
Setup:
4x ceph servers
- 3x mon with /mon on local os SATA disk
- 4x OSD with /journal on tmpfs and /srv on intel ssd
all of them use 2x 1Gbit/s lacp trunk.
1x KVM Host system (2x 1Gbit/s lacp trunk)
With one KVM i do not get more
Am 21.05.2012 22:57, schrieb Gregory Farnum:
On Mon, May 21, 2012 at 1:51 PM, Stefan Priebe s.pri...@profihost.ag wrote:
Am 21.05.2012 16:59, schrieb Wido den Hollander:
Probably after, but both is fine. I just want to know how your cluster
is doing and what the PG states are.
will do so.
On Mon, May 21, 2012 at 11:59:54AM +0800, Miao Xie wrote:
Hi Josef,
On fri, 18 May 2012 15:01:05 -0400, Josef Bacik wrote:
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index 9b9b15f..492c74f 100644
--- a/fs/btrfs/btrfs_inode.h
+++ b/fs/btrfs/btrfs_inode.h
@@ -57,9
On Tue, 22 May 2012, Alexandre DERUMIER wrote:
Hi, I have some questions about disabling write cache
http://ceph.com/docs/master/config-cluster/file-system-recommendations/
Ceph aims for data safety, which means that when the application receives
notice that data was written to the disk,
Hi,
I`ve run in almost same problem about two months ago, and there is a
couple of corner cases: near-default tcp parameters, small journal
size, disks that are not backed by controller with NVRAM cache and
high load on osd` cpu caused by side processes. Finally, I have able
to achieve 115Mb/s
Thanks Sage,
yes newer kernel doesn't need barrier option since 2.6.37 if I remember.
(support of REQ_FLUSH/FUA)
Just to be sure:
If client do a fsync or fdatasync, does the write will go only to journal and
after 30seconds is flushed to disk ?
or does it force the write to be committed
On Tue, 22 May 2012, Alexandre DERUMIER wrote:
Thanks Sage,
yes newer kernel doesn't need barrier option since 2.6.37 if I remember.
(support of REQ_FLUSH/FUA)
Just to be sure:
If client do a fsync or fdatasync, does the write will go only to
journal and after 30seconds is flushed
Yes, I was talking about client fsync. (Sorry, I was not clear in my mail)
But thanks for the informations about fsync in ceph osd,I'm understand now how
things works.
About faking: I just want to say that if the client do a fsync, the fsync
doesn't force the flush the disk platter but only to
On Tue, May 22, 2012 at 3:05 AM, Stefan Priebe - Profihost AG
s.pri...@profihost.ag wrote:
Hi,
the ceph init script seems to be broken - at least under debian lenny.
It does simply nothing on a configured osd / mon server, so while system
start the daemons won't start. Ow do i have to
On Tue, May 22, 2012 at 4:03 AM, Madhusudhana U
madhusudhana.u.acha...@gmail.com wrote:
Hi,
I have dedicated 10G space for /var partition. But, MDS log has filled the
entire /var partition and my cluster is not responding. How shall I fix this?
and what I need to make so that /var partition
On Tue, May 22, 2012 at 12:29:59PM +0200, Christian Brunner wrote:
2012/5/21 Miao Xie mi...@cn.fujitsu.com:
Hi Josef,
On fri, 18 May 2012 15:01:05 -0400, Josef Bacik wrote:
diff --git a/fs/btrfs/btrfs_inode.h b/fs/btrfs/btrfs_inode.h
index 9b9b15f..492c74f 100644
---
On Tuesday, May 22, 2012 at 3:12 AM, Felix Feinhals wrote:
I am not quite sure on how to get you the coredump infos. I installed
all ceph-dbg packages and executed:
gdb /usr/bin/ceph-mds core
snip
GNU gdb (GDB) 7.0.1-debian
Copyright (C) 2009 Free Software Foundation, Inc.
License
Ok, now it is clear to me.
I disable filestore_xattr_use_omap for now, and i will try to move
puppet class to xfs for a new cluster init :)
Thanks
On Tue, May 22, 2012 at 7:47 PM, Greg Farnum g...@inktank.com wrote:
On Tuesday, May 22, 2012 at 1:21 AM, Sławomir Skowron wrote:
One more thing:
On Tuesday, May 22, 2012 at 5:02 AM, Grant Ashman wrote:
Tommi Virtanen tommi.virtanen at dreamhost.com (http://dreamhost.com)
writes:
You don't mount pools directly; there's filesystem metadata (as
managed by metadata servers) that is needed too.
What you probably want is to
RGW is maturing. Beside looking at performance, which highly ties into
RADOS performance, we'd like to hear whether there are certain pain
points or future directions that you (you as in the ceph community)
would like to see us taking.
There are a few directions that we were thinking about:
1.
On Tue, May 22, 2012 at 8:07 PM, Yehuda Sadeh yeh...@inktank.com wrote:
RGW is maturing. Beside looking at performance, which highly ties into
RADOS performance, we'd like to hear whether there are certain pain
points or future directions that you (you as in the ceph community)
would like to
On Tue, May 22, 2012 at 11:25 AM, Sławomir Skowron szi...@gmail.com wrote:
On Tue, May 22, 2012 at 8:07 PM, Yehuda Sadeh yeh...@inktank.com wrote:
RGW is maturing. Beside looking at performance, which highly ties into
RADOS performance, we'd like to hear whether there are certain pain
points
Am 22.05.2012 16:52, schrieb Andrey Korolyov:
Hi,
I`ve run in almost same problem about two months ago, and there is a
couple of corner cases: near-default tcp parameters, small journal
size, disks that are not backed by controller with NVRAM cache and
high load on osd` cpu caused by side
Am 22.05.2012 18:08, schrieb Yehuda Sadeh:
On Tue, May 22, 2012 at 3:05 AM, Stefan Priebe - Profihost AG
s.pri...@profihost.ag wrote:
Hi,
the ceph init script seems to be broken - at least under debian lenny.
It does simply nothing on a configured osd / mon server, so while system
start the
What does your test look like? With multiple large IOs in flight we can
regularly fill up a 1GbE link on our test clusters. With smaller or fewer IOs
in flight performance degrades accordingly.
On Tuesday, May 22, 2012 at 5:45 AM, Stefan Priebe - Profihost AG wrote:
Hi list,
my ceph
build/obj/util.do: Compiling dynamic object
src/simplexml.c:27:27: error: libxml/parser.h: No such file or directory
src/simplexml.c:48: error: expected '=', ',', ';', 'asm' or '__attribute__'
before 'saxGetEntity'
cc1: warnings being treated as errors
src/simplexml.c:56: error: type defaults
On Tuesday, May 22, 2012 at 12:40 PM, Stefan Priebe wrote:
Am 22.05.2012 21:35, schrieb Greg Farnum:
What does your test look like? With multiple large IOs in flight we can
regularly fill up a 1GbE link on our test clusters. With smaller or fewer
IOs in flight performance degrades
On Tue, May 22, 2012 at 9:09 PM, Yehuda Sadeh yeh...@inktank.com wrote:
On Tue, May 22, 2012 at 11:25 AM, Sławomir Skowron szi...@gmail.com wrote:
On Tue, May 22, 2012 at 8:07 PM, Yehuda Sadeh yeh...@inktank.com wrote:
RGW is maturing. Beside looking at performance, which highly ties into
Am 22.05.2012 21:52, schrieb Greg Farnum:
On Tuesday, May 22, 2012 at 12:40 PM, Stefan Priebe wrote:
Huh. That's less than I would expect. Especially since it ought to be going
through the page cache.
What version of RBD is KVM using here?
v0.47.1
Can you (from the KVM host) run
rados -p
On Tuesday, May 22, 2012 at 1:15 PM, Sławomir Skowron wrote:
/usr/bin/ceph -v
ceph version 0.47.1 (commit:f5a9404445e2ed5ec2ee828aa53d73d4a002f7a5)
root@obs-10-177-66-4:/# /usr/bin/ceph osd crush add 1 osd.1 1.0
pool=default rack=unknownrack host=obs-10-177-66-4
root@obs-10-177-66-4:/#
Am 22.05.2012 21:52, schrieb Greg Farnum:
On Tuesday, May 22, 2012 at 12:40 PM, Stefan Priebe wrote:
Huh. That's less than I would expect. Especially since it ought to be going
through the page cache.
What version of RBD is KVM using here?
v0.47.1
Can you (from the KVM host) run
rados -p
On Tuesday, May 22, 2012 at 1:30 PM, Stefan Priebe wrote:
Am 22.05.2012 21:52, schrieb Greg Farnum:
On Tuesday, May 22, 2012 at 12:40 PM, Stefan Priebe wrote:
Huh. That's less than I would expect. Especially since it ought to be going
through the page cache.
What version of RBD is KVM
On Tue, May 22, 2012 at 12:42 PM, Matt Weil mw...@genome.wustl.edu wrote:
build/obj/util.do: Compiling dynamic object
src/simplexml.c:27:27: error: libxml/parser.h: No such file or directory
src/simplexml.c:48: error: expected '=', ',', ';', 'asm' or
'__attribute__' before 'saxGetEntity'
Am 22.05.2012 22:48, schrieb Mark Nelson:
Can you use something like iostat or collectl to check and see if the
write throughput to each SSD is roughly equal during your tests?
It is but just around 20-40MB/s. But they can write 260MB/s with
sequential writes.
Also, what FS are you using and
Am 22.05.2012 22:49, schrieb Greg Farnum:
Anyway, it looks like you're just paying a synchronous write penalty
What does that exactly mean? Shouldn't one threaded write to four
260MB/s devices gives at least 100Mb/s?
since with 1 write at a time you're getting 30-40MB/s out of rados bench,
On Tuesday, May 22, 2012 at 2:00 PM, Stefan Priebe wrote:
Am 22.05.2012 22:49, schrieb Greg Farnum:
Anyway, it looks like you're just paying a synchronous write penalty
What does that exactly mean? Shouldn't one threaded write to four
260MB/s devices gives at least 100Mb/s?
Well,
On Tuesday, May 22, 2012 at 2:12 PM, Grant Ashman wrote:
That's the right pool ID; yes. I believe the problem is that the cephfs
tool currently requires you to fill in all the fields, not ?just the one
you wish to change. Try that (setting all the other values to match what
you see when
Greg Farnum greg at inktank.com writes:
Oh, I got this conversation confused with another one.
You also need to specify the pool as a valid pool to
store filesystem data in, if you haven't done that already:
ceph mds add_data_pool poolname
Thanks Greg,
However, I still get the same error
On Tuesday, May 22, 2012 at 2:31 PM, Grant Ashman wrote:
Greg Farnum greg at inktank.com (http://inktank.com) writes:
Oh, I got this conversation confused with another one.
You also need to specify the pool as a valid pool to
store filesystem data in, if you haven't done that already:
That's the right pool ID; yes. I believe the problem is that the cephfs tool
currently requires you to fill in all the fields, not ?just the one you wish
to change. Try that (setting all the other values to match what you see when
you view the layout). :) - Greg
Hi,
I've tried setting all
Greg Farnum greg at inktank.com writes:
When I specify the add data pool I get the following:
(with or without the additional values)
root at dsan-test:~# ceph mds add_data_pool backup
added data pool 0 to mdsmap
Okay, that's not right — it should say pool 3.
According to the docs
On Tuesday, May 22, 2012 at 2:51 PM, Grant Ashman wrote:
Awesome, that seemed to work!
However, I feel a bit silly - what I'm after is:
/mnt/ceph-data - mounted to pool 0 (data)
/mnt/ceph-backup - mounted to pool 3 (backup)
but this seemed to change both to mount to pool 3?
Am I simply
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