Hi,
benchmarking is done via fio and different blocksizes. I compared with
benchmarks I did before the ceph.conf change and encountered very similar
numbers.
Thanks for the hint with mysql benchmarking. I will try it out.
Cheers
Nick
On Friday, January 08, 2016 06:59:13 AM Josef Johansson wro
Hi, can rbd block_name_prefix be changed? Is it constant for a rbd image?
thanks.
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Hi,
How could I use Ceph as Backend for Swift?
I follow these git:
https://github.com/stackforge/swift-ceph-backend
https://github.com/enovance/swiftceph-ansible
I try to install manually, but I am stucking in configuring entry for ring.
What device I use in 'swift-ring-builder account.builder ad
Hi @all,
I'm using ceph Infernalis (9.2.0) in the client and cluster side.
I have a Ubuntu Trusty client where cephfs is mounted via ceph-fuse
and I would like to put a sub-directory of cephfs in a specific pool
(a ssd pool).
In the cluster, I have:
~# ceph auth get client.cephfs
exported keyrin
Hi,
I want to start another round of SSD discussion since we are about to
buy some new servers for our ceph cluster. We plan to use hosts with 12x
4TB drives and two SSD journals drives. I'm fancying Intel P3700 PCI-e
drives, but Sebastien Han's blog does not contain performance data for
thes
That is not set as far as I can tell. Actually it is strange that I don't
see that setting at all.
[root@cpn1 ~]# ceph daemon osd.0 config show | grep update | grep crush
[root@cpn1 ~]# grep update /etc/ceph/ceph.conf
[root@cpn1 ~]#
On Fri, Jan 8, 2016 at 1:50 AM Mart van Santen w
Hi,
Quick results for 1/5/10 jobs:
# fio --filename=/dev/nvme0n1 --direct=1 --sync=1 --rw=write --bs=4k
--numjobs=1 --iodepth=1 --runtime=60 --time_based --group_reporting
--name=journal-test
journal-test: (g=0): rw=write, bs=4K-4K/4K-4K/4K-4K, ioengine=sync,
iodepth=1
fio-2.1.3
Starting 1 proce
Hi,
we had a HW-problem with OSD.21 today. The OSD daemon was down and "smartctl"
told me about some hardware errors.
I decided to remove the HDD:
ceph osd out 21
ceph osd crush remove osd.21
ceph auth del osd.21
ceph osd rm osd.21
But afterwards I saw t
Hi,
Some news...
On 08/01/2016 12:42, Francois Lafont wrote:
> ~# mkdir /mnt/cephfs/ssd
>
> ~# setfattr -n ceph.dir.layout.pool -v poolssd /mnt/cephfs/ssd/
> setfattr: /mnt/cephfs/ssd/: Operation not supported
>
> ~# getfattr -n ceph.dir.layout /mnt/cephfs/
> /mnt/cephfs/: ceph.dir.layout: Ope
It's constant for an RBD image and is tied to the image's internal unique ID.
--
Jason Dillaman
- Original Message -
> From: "min fang"
> To: "ceph-users"
> Sent: Friday, January 8, 2016 4:50:08 AM
> Subject: [ceph-users] can rbd block_name_prefix be changed?
> Hi, can rbd block_
Hi,guyes
Recentlly,I am testing cache-tier using writeback mode.but I found a
strange things.
the performance using rados bench degrade.Is it correct?
If so,how to explain.following some info about my test:
storage node:4 machine,two INTEL SSDSC2BB120G4(one for systaem,the other
one used a
Yeah,this setting can not see in asok config.
You just set it in ceph.conf and restart mon and osd service(sorry I
forget if these restart is necessary)
what I use this config is when I changed crushmap manually,and I do not
want the service init script to rebuild crushmap as default way.
It is not set in the conf file. So why do I still have this behavior ?
On Fri, Jan 8, 2016 at 11:08 AM hnuzhoulin wrote:
> Yeah,this setting can not see in asok config.
> You just set it in ceph.conf and restart mon and osd service(sorry I
> forget if these restart is necessary)
>
> what I use
My experience is performance degrades dramatically when dirty objects are
flushed.
Best Regards,
Wade
On Fri, Jan 8, 2016 at 11:08 AM hnuzhoulin wrote:
> Hi,guyes
> Recentlly,I am testing cache-tier using writeback mode.but I found a
> strange things.
> the performance using rados bench degr
There was/is a bug in Infernalis and older, where objects will always get
promoted on the 2nd read/write regardless of what you set the
min_recency_promote settings to. This can have a dramatic effect on
performance. I wonder if this is what you are experiencing?
This has been fixed in Jewel ht
Hi Cephers
Just fired up first Infernalis cluster on RHEL7.1.
The following:
[root@citrus ~]# systemctl status ceph-osd@0.service
ceph-osd@0.service - Ceph object storage daemon
Loaded: loaded (/usr/lib/systemd/system/ceph-osd@.service; enabled)
Active: active (running) since Fri 2016-01-0
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA256
Are you backporting that to hammer? We'd love it.
-
Robert LeBlanc
PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1
On Fri, Jan 8, 2016 at 9:28 AM, Nick Fisk wrote:
> There was/is a bug in Infernalis and older, w
Have you started ceph-osd with LD_PRELOAD=/usr/lib64/liblttng-ust-fork.so
[matched to correct OS path]? I just tested ceph-osd on the master branch and
was able to generate OSD trace events. You should also make sure that AppArmor
/ SElinux isn't denying access to /dev/shm/lttng-ust-*.
What t
One more - I tried to recreate the pg but now this pg this "stuck inactive":
root@ceph-admin:~# ceph pg force_create_pg 34.225
pg 34.225 now creating, ok
root@ceph-admin:~# ceph health detail
HEALTH_WARN 49 pgs stale; 1 pgs stuck inactive; 49 pgs stuck stale; 1
pg
Hello,
Since ""ceph.conf"" is getting more complicated because there has been a bunch
of parameters.
It's because of bug fixes, performance optimization or whatever making the Ceph
cluster more strong, stable and something.
I'm pretty sure that I have not been able to catch up -;
[ceph@ceph0
Hi,
I would say this is normal. 1GB of ram per 1TB is what we designed the
cluster for, I would believe that an EC-pool demands a lot more. Buy more
ram and start everything 32GB ram is quite little, when the cluster is
operating OK you'll see that extra ram getting used as file cache which
makes
Maybe changing the number of concurrent back fills could limit the memory
usage.
On 9 Jan 2016 05:52, "Josef Johansson" wrote:
> Hi,
>
> I would say this is normal. 1GB of ram per 1TB is what we designed the
> cluster for, I would believe that an EC-pool demands a lot more. Buy more
> ram and sta
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