Thanks a lot! Have a good weekend.
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Gregory Farnum
Sent: 27 March 2020 21:18:37
To: Jeff Layton
Cc: Frank Schilder; Zheng Yan; ceph-users; Luis Henriques
Subject: Re: [ceph-users]
Made a ticket in the Linux Kernel Client tracker:
https://tracker.ceph.com/issues/44791
I naively don't think this should be very complicated at all, except
that I recall hearing something about locking issues with quota realms
in the kclient? But the userspace client definitely doesn't have to do
Hi,
I've read that Ceph has some InfluxDB reporting capabilities inbuilt
(https://docs.ceph.com/docs/master/mgr/influx/).
However, Telegraf, which is the system reporting daemon for InfluxDB, also has
a Ceph plugin
(https://github.com/influxdata/telegraf/tree/master/plugins/inputs/ceph).
Just
Hi,
I'm using Intel Optane disks to provide WAL/DB capacity for my Ceph cluster
(which is part of Proxmox - for VM hosting).
I've read that WAL/DB partitions only use either 3GB, or 30GB, or 300GB - due
to the way that RocksDB works.
Is this true?
My current partition for WAL/DB is 145 GB - d
Hi everyone,
I am taking time off from the Ceph project and from Red Hat, starting in
April and extending through the US election in November. I will initially
be working with an organization focused on voter registration and turnout
and combating voter suppression and disinformation campaigns.
What about the missing dependencies for octopus on el8? (looking at yu
ceph-mgr!)
On Fri, Mar 27, 2020 at 7:15 AM Sage Weil wrote:
> One word of caution: there is one known upgrade issue if you
>
> - upgrade from luminous to nautilus, and then
> - run nautilus for a very short period of t
Update on my issue. It seems it was caused by the broken compression
which one of 14.2.x releases (ubuntu builds) probably had.
My osd versions were mixed. Five OSDs were 14.2.7, one was 14.2.4, other
6 were 14.2.8.
I moved the same pg several times more. Space usage dropped when the pg
was
Hi,
I have upgraded to 14.2.8 and rebooted all nodes sequentially including
all 3 MON services.
However the slow ops are still displayed with increasing block time.
If this is a (harmless) bug anymore, then I would like to understand
what's causing it.
But if this is not a bug, then I would like
I’m actually very curious how well this is performing for you as I’ve
definitely not seen a deployment this large. How do you use it?
> On Mar 27, 2020, at 11:47 AM, shubjero wrote:
>
> I've reported stability problems with ceph-mgr w/ prometheus plugin
> enabled on all versions we ran in produ
I've reported stability problems with ceph-mgr w/ prometheus plugin
enabled on all versions we ran in production which were several
versions of Luminous and Mimic. Our solution was to disable the
prometheus exporter. I am using Zabbix instead. Our cluster is 1404
OSD's in size with about 9PB raw wi
On Fri, 2020-03-27 at 07:36 -0400, Jeff Layton wrote:
> On Thu, 2020-03-26 at 10:32 -0700, Gregory Farnum wrote:
> > On Thu, Mar 26, 2020 at 9:13 AM Frank Schilder wrote:
> > > Dear all,
> > >
> > > yes, this is it, quotas. In the structure A/B/ there was a quota set on
> > > A. Hence, B was mov
One word of caution: there is one known upgrade issue if you
- upgrade from luminous to nautilus, and then
- run nautilus for a very short period of time (hours), and then
- upgrade from nautilus to octopus
that prevents OSDs from starting. We have a fix that will be in 15.2.1,
but until tha
The error is silently corrected and the correct data rewritten to the
bad sector. There may be a slight latency increase on the read.
The checksumming is implemented at the Bluestore layer, what you are
storing makes no difference.
On Fri, Mar 27, 2020 at 5:12 AM Priya Sehgal wrote:
>
> Hi,
> I a
Hi Greg,
Yes, this was caused by a chain of event. As a cautionary tale, the main
ones were:
1) minor nautilus release upgrade, followed by a rolling node restart
script that mistakenly relied on "ceph -s" for cluster health info,
i.e. it didn't wait for the cluster to return to health bef
hi folks,
if you are upgrading from luminous to octopus, or you plan to do so,
please read on.
in octopus, osd will crash if it processes an osdmap whose
require_osd_release flag is still luminous.
this only happens if a cluster upgrades very quickly from luminous to
nautilus and to octopus. in
On Fri, 2020-03-27 at 12:00 +0100, Marco Savoca wrote:
> Hi all,
>
> i‘m running a 3 node ceph cluster setup with collocated mons and mds
> for actually 3 filesystems at home since mimic. I’m planning to
> downgrade to one FS and use RBD in the future, but this is another
> story. I’m using the cl
On Thu, 2020-03-26 at 10:32 -0700, Gregory Farnum wrote:
> On Thu, Mar 26, 2020 at 9:13 AM Frank Schilder wrote:
> > Dear all,
> >
> > yes, this is it, quotas. In the structure A/B/ there was a quota set on A.
> > Hence, B was moved out of this zone and this does indeed change mv to be a
> > cp
Hi all,
i‘m running a 3 node ceph cluster setup with collocated mons and mds for
actually 3 filesystems at home since mimic. I’m planning to downgrade to one FS
and use RBD in the future, but this is another story. I’m using the cluster as
cold storage on spindles with EC-pools for archive purp
I am sorry.
The problem was the http_proxy
Ignazio
Il giorno ven 27 mar 2020 alle ore 11:24 Ignazio Cassano <
ignaziocass...@gmail.com> ha scritto:
> Hello , I am trying to initializing the secondary zone pulling the realm
> define in the primary zone:
>
> radosgw-admin realm pull --rgw-realm=niv
Hello , I am trying to initializing the secondary zone pulling the realm
define in the primary zone:
radosgw-admin realm pull --rgw-realm=nivola --url=http://10.102.184.190:8080
--access-key=access --secret=secret
The following errors appears:
request failed: (16) Device or resource busy
Could
On 27/03/2020 09:56, Eugen Block wrote:
> Hi,
>
>> I guess what you are suggesting is something like k+m with m>=k+2, for
>> example k=4, m=6. Then, one can distribute 5 shards per DC and sustain
>> the loss of an entire DC while still having full access to redundant
>> storage.
>
> that's exactl
Hi,
I am trying to find out whether Ceph has a method to detect silent
corruption such as bit rot. I came across this text in a book - "Mastering
Ceph : Infrastructure Storage Solution with the latest Ceph release" by
Nick Fisk -
Luminous release of Ceph employs ZFS-like ability to checksum data
Hi Brett,
I'm far from being an expert, but you may consider rbd-mirroring between
EC-pools.
Cheers,
Lars
Am Fri, 27 Mar 2020 06:28:02 +
schrieb Brett Randall :
> Hi all
>
> Had a fun time trying to join this list, hopefully you don’t get this message
> 3 times!
>
> On to Ceph… We are l
Hi,
I guess what you are suggesting is something like k+m with m>=k+2,
for example k=4, m=6. Then, one can distribute 5 shards per DC and
sustain the loss of an entire DC while still having full access to
redundant storage.
that's exactly what I mean, yes.
Now, a long time ago I was in a
Sorry, I meant MGR of course. MDS are fine for me. But the MGRs were
failing constantly due to the prometheus module doing something funny.
On 26/03/2020 18:10, Paul Choi wrote:
> I won't speculate more into the MDS's stability, but I do wonder about
> the same thing.
> There is one file served b
Dear Eugen,
I guess what you are suggesting is something like k+m with m>=k+2, for example
k=4, m=6. Then, one can distribute 5 shards per DC and sustain the loss of an
entire DC while still having full access to redundant storage.
Now, a long time ago I was in a lecture about error-correcting
> > If automatic migration is not possible, is there at least an efficient way
> > to
> > *find* everything with special ceph attributes?
>
> IIRC, you can still see all these attributes by querying for the
> "ceph" xattr. Does that not work for you?
In case I misunderstand this part of your mes
Hi Brett,
Our concern with Ceph is the cost of having three replicas. Storage
may be cheap but I’d rather not buy ANOTHER 5pb for a third replica
if there are ways to do this more efficiently. Site-level redundancy
is important to us so we can’t simply create an erasure-coded volume
acros
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