osd daemon perf dump for a one of my bluestore NVMe OSDs has [1] this
excerpt. I grabbed those stats based on Wido's [2] script to determine how
much DB overhead you have per object. My [3] calculations for this
particular OSD are staggering. 99% of the space used on this OSD is being
consumed
Mandi! David Turner
In chel di` si favelave...
> Replace the raid controller in the chassis with an HBA before moving into the
> new hardware? ;)
Eh... some hint on a controller i can buy?
> If you do move to the HP controller, make sure you're monitoring the health of
> the cache battery in
Hi Eugen.
Sorry for the delay in answering.
Just looked in the /var/log/ceph/ directory. It only contains the following
files (for example on node01):
###
# ls -lart
total 3864
-rw--- 1 ceph ceph 904 ago 24 13:11 ceph.audit.log-20180829.xz
drwxr-xr-x 1 root root 898 ago 28 10:07
Replace the raid controller in the chassis with an HBA before moving into
the new hardware? ;)
If you do move to the HP controller, make sure you're monitoring the health
of the cache battery in the controller. We notice a significant increase
to await on our OSD nodes behind these when the
The problem with mounting an RBD or CephFS on an OSD node is if you're
doing so with the kernel client. In a previous message on the ML John
Spray explained this wonderfully.
"This is not a Ceph-specific thing -- it can also affect similar systems
like Lustre. The classic case is when under
I am addressing the doc bug at https://github.com/ceph/ceph/pull/23801
On Mon, Aug 27, 2018 at 2:08 AM, Eugen Block wrote:
> Hi,
>
> could you please paste your osd tree and the exact command you try to
> execute?
>
>> Extra note, the while loop in the instructions look like it's bad. I had
>>
Probably a complex question, with a simple answer: NO. ;-)
I need to move disks from a ceph node (still on hammer) from an
hardware to another one. The source hardware have a simple SATA/SAS
controller, the 'new' server have a RAID controller with no JBOD mode
(the infamous HP P410i), so i
Hello fellow Ceph users,
We have been using a small cluster (6 data nodes with 12 disks each, 3
monitors) with OSDs on spinners and journals on SATA SSD-s for a while now.
We still haven't upgraded to Luminous, and are going to test it now, as
we also need to switch some projects on a shared
On Wed, Aug 29, 2018 at 2:06 AM, Wolfgang Lendl
wrote:
> Hi,
>
> after upgrading my ceph clusters from 12.2.5 to 12.2.7 I'm experiencing
> random crashes from SSD OSDs (bluestore) - it seems that HDD OSDs are not
> affected.
> I destroyed and recreated some of the SSD OSDs which seemed to
Hi Marc,
We mount cephfs using FUSE on all 10 nodes of our cluster, and provided
that we limit bluestore memory use, find it to be reliable*.
bluestore_cache_size = 209715200
bluestore_cache_kv_max = 134217728
Without the above tuning, we get OOM errors.
As others will confirm, the FUSE client
Correction:
Mike's new email is actually mipe...@redhat.com (sorry, mperez!).
sage
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I have 3 node test cluster and I would like to expand this with a 4th
node that is currently mounting the cephfs and rsync's backups to it. I
can remember reading something about that you could create a deadlock
situation doing this.
What are the risks I would be taking if I would be doing
On 08/29/2018 11:02 AM, William Lawton wrote:
>
> We have a 5 node Ceph cluster, status output copied below. During our
> cluster resiliency tests we have noted that a MON leader election takes
> place when we fail one member of the MON quorum, even though the failed
> instance is not the current
The root cause is a restriction in reprepro used to manage the repository:
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=570623
Paul
2018-08-29 8:50 GMT+02:00 Thomas Bennett :
> Hi David,
>
> Thanks for your reply. That's how I'm currently handling it.
>
> Kind regards,
> Tom
>
> On Tue, Aug
Hi.
We have a 5 node Ceph cluster, status output copied below. During our cluster
resiliency tests we have noted that a MON leader election takes place when we
fail one member of the MON quorum, even though the failed instance is not the
current MON leader. We speculate that this re-election
On 2018-08-29T01:13:24, Sage Weil wrote:
Most excellent! Welcome, Mike!
I look forward to working with you.
Regards,
Lars
--
Architect SDS, Distinguished Engineer
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284
(AG Nürnberg)
"Architects should open
On 08/29/2018 02:13 AM, Sage Weil wrote:
> Hi everyone,
>
> Please help me welcome Mike Perez, the new Ceph community manager!
Very happy to have you with us!
Let us know if there's anything we can help you with, and don't hesitate
to get in touch :)
-Joao
Great news. Welcome Mike! I look forward to working with you, let me
know if there is anything I can help you with.
Lenz
On 08/29/2018 03:13 AM, Sage Weil wrote:
> Please help me welcome Mike Perez, the new Ceph community manager!
>
> Mike has a long history with Ceph: he started at DreamHost
Hi,
after upgrading my ceph clusters from 12.2.5 to 12.2.7 I'm experiencing random
crashes from SSD OSDs (bluestore) - it seems that HDD OSDs are not affected.
I destroyed and recreated some of the SSD OSDs which seemed to help.
this happens on centos 7.5 (different kernels tested)
Hi All. I have a ceph cluster that's partially upgraded to Luminous. Last
night a host died and since then the cluster is failing to recover. It
finished backfilling, but was left with thousands of requests degraded,
inactive, or stale. In order to move past the issue, I put the cluster in
Thanks, Tom and John, both of your input really helpful and helped to put
things into perspective.
Much appreciated.
@John, I am based out of Dubai.
On Wed, Aug 29, 2018 at 2:06 AM John Hearns wrote:
> James, you also use the words enterprise and production ready.
> Is Redhat support
Hi David,
Thanks for your reply. That's how I'm currently handling it.
Kind regards,
Tom
On Tue, Aug 28, 2018 at 4:36 PM David Turner wrote:
> That is the expected behavior of the ceph repo. In the past when I needed
> a specific version I would download the packages for the version to a
>
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