Hi,
I'm planning to deploy a ceph cluster using etcd as kv store.
I'm planning to deploy a stateless etcd docker to store the data.
I'd like to know if ceph cluster will be able to boot when etcd container
restarts (and looses al data written in it)
If the etcd container restarts when the ceph
Dear colleagues,
I would like to ask you for help with a performance problem on a site
backed with ceph storage backend. Cluster details below.
I've got a big problem with PostgreSQL performance. It runs inside a VM
with virtio-scsi ceph rbd image. And I see constant ~100% disk load with up
t
On Mon, 15 Jul 2019, Kaleb Keithley wrote:
> On Wed, Jun 5, 2019 at 11:58 AM Sage Weil wrote:
>
> > ...
> >
> > This has mostly worked out well, except that the mimic release received
> > less attention that we wanted due to the fact that multiple downstream
> > Ceph products (from Red Has and SU
Hey,
On 15.07.19 09:58, Kaleb Keithley wrote:
> Speaking as (one of) the Ceph packager(s) in Fedora:
Arch Linux packager for Ceph here o/
> If Octopus is really an LTS release like all the others, and you want
> bleeding edge users to test/use it and give early feedback, then Fedora is
> probabl
On Mon, 15 Jul 2019, Kaleb Keithley wrote:
> On Mon, Jul 15, 2019 at 10:10 AM Sage Weil wrote:
>
> > On Mon, 15 Jul 2019, Kaleb Keithley wrote:
> > >
> > > If Octopus is really an LTS release like all the others, and you want
> > > bleeding edge users to test/use it and give early feedback, then
We found shockingly bad committed IOPS/latencies on ceph.
We could get roughly 20-30 IOPS when running this fio invocation from
within a vm:
fio --name=seqwrite --rw=write --direct=1 --ioengine=libaio --bs=32k
--numjobs=1 --size=2G --runtime=60 --group_reporting --fsync=1
For non-committed IO
Hi Oscar,
ceph itself does not use etcd for anything. Hence, a deployed and operational
cluster will not notice the presence or absence of an etcd store.
How much a loss of etcd means for your work depends on what you plan to store
in it. If you look at the ceph/daemon container on docker, the
You are effectively measuring the latency with jobs=1 here (which is
appropriate considering that the WAL of a DB is effectively limited by
latency) and yeah, a networked file system will always be a little bit
slower than a local disk.
But I think you should be able to get a higher performance he
Hello,
Other than Redhat and SUSE, are there other companies that provide
enterprise support for Ceph?
Thanks,
Shridhar
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Hi Void,
Canonical offers a very interesting offert.
https://ubuntu.com/openstack/storage
El lun., 15 de jul. de 2019 a la(s) 14:53, Void Star Nill (
void.star.n...@gmail.com) escribió:
> Hello,
>
> Other than Redhat and SUSE, are there other companies that provide
> enterprise support for Ceph
https://www.mirantis.com/software/ceph/
On Mon, Jul 15, 2019 at 2:53 PM Void Star Nill
wrote:
> Hello,
>
> Other than Redhat and SUSE, are there other companies that provide
> enterprise support for Ceph?
>
> Thanks,
> Shridhar
> ___
> ceph-users maili
All;
I'm digging deeper into the capabilities of Ceph, and I ran across this:
http://docs.ceph.com/docs/nautilus/rbd/rbd-mirroring/
Which seems really interesting, except...
This feature seems to require custom cluster naming to function, which is
deprecated in Nautilus, and not all commands adh
We recently used Croit (https://croit.io/) and they were really good.
Robert LeBlanc
PGP Fingerprint 79A2 9CA4 6CC4 45DD A904 C70E E654 3BB2 FA62 B9F1
On Mon, Jul 15, 2019 at 12:53 PM Void Star Nill
wrote:
> Hello,
>
> Other than Redhat and SUSE, are there other companies that
No worries, that's just the names of the config files/keyrings on the
mirror server which needs to access both clusters and hence two different
ceph.conf files.
Paul
--
Paul Emmerich
Looking for help with your Ceph cluster? Contact us at https://croit.io
croit GmbH
Freseniusstr. 31h
81247 Münc
Paul;
If I understand you correctly:
I will have 2 clusters, each named "ceph" (internally).
As such, each will have a configuration file at: /etc/ceph/ceph.conf
I would copy the other clusters configuration file to something like:
/etc/ceph/remote.conf
Then the commands (run on the local
Hi,
On 15.07.19 22:42, dhils...@performair.com wrote:
Paul;
If I understand you correctly:
I will have 2 clusters, each named "ceph" (internally).
As such, each will have a configuration file at: /etc/ceph/ceph.conf
I would copy the other clusters configuration file to something like:
Hi Frank,
Thanks a lot for your quick response.
Yes, the use case that concerns me is the following:
1.- I bootstrap a complete cluster mons, osds, mgr, mds, nfs, etc using
etcd as a key store
2.- There is an electric blackout and all nodes of my cluster goes down and
all data in my etcd is lost
Isn't that why you suppose to test up front? So you do not have shocking
surprises? You can find in the mailing list archives some performance
references also.
I think it would be good to publish some performance results on the
ceph.com website. Can’t be to difficult to put some default scen
All "normal" VM usage is about what you'd expect, since a lot of apps or
system software is still written from the days of spinning disks, when
this (tens of ops) is the level of committed IOPS you can get from them.
So they let the OS cache writes and only sync when needed.
Some applications
On Mon, Jul 15, 2019 at 4:50 PM Michel Raabe wrote:
>
> Hi,
>
>
> On 15.07.19 22:42, dhils...@performair.com wrote:
> > Paul;
> >
> > If I understand you correctly:
> > I will have 2 clusters, each named "ceph" (internally).
> > As such, each will have a configuration file at: /etc/ceph/ceph
Option 1 is the official way, option 2 will be a lot faster if it works for
you (I was never in the situation requiring this so can't say) and option 3
is for filestore and not applicable to bluestore
On Wed, 10 Jul 2019 at 07:55, Davis Mendoza Paco
wrote:
> What would be the most appropriate pr
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