r, 208 op/s rd, 306 op/s wr
recovery: 298 MiB/s, 156 objects/s
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
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Compression is defined per pool and is independent of the replication type. You
can choose depending on IO pattern. I use compression only on data pools. Meta
data is usually small random IO and not very suited for compression, which
might increase latency. In particular, when meta data is on SS
Hi, I encountered a problem with blocked MDS operations and a client becoming
unresponsive. I dumped the MDS cache, ops, blocked ops and some further log
information here:
https://files.dtu.dk/u/peQSOY1kEja35BI5/2010-09-03-mds-blocked-ops?l
A user of our HPC system was running a job that create
he client.
An ordinary user should not have so much power in his hands. This makes it
trivial to destroy a ceph cluster.
This very short fio test is probably sufficient to reproduce the issue on any
test cluster. Should I open an issue?
Best regards,
=
Frank Schilder
AIT Risø
it is possible to set the noup flag on a specific OSD,
which is much safer.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: ceph-users on behalf of solarflow99
Sent: 03 September 2019 19:40:59
To: Ceph
on-line, but I get
only first and important e-mails to my inbox. Messages added on-line of sent by
e-mail are always sent to everyone subscribed to a thread. Does ceph.io offer a
similar feature?
Best regards,
=====
Frank Schilder
AIT Risø Campus
Bygni
level becomes warn.
- The cluster crunches through the meta data ops for a minute or so and then
settles. This is quite a long time considering a 5 secs burst.
- OSDs did not go out, but this could be due to not running the test long
enough.
Best regards,
=
Frank Sc
es? If not, what are my options?
Thanks!
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
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while storage is fully redundant and r/w
accessible.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
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ed to keep all PGs active with 9 out of 10 OSDs up
and in?
Why do undersized PGs arise even though all OSDs are up?
Why do degraded objects arise even though no OSD was removed?
Thanks!
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
_
your help,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Robert LeBlanc
Sent: 01 October 2019 17:13:41
To: Frank Schilder
Cc: ceph-users
Subject: Re: [ceph-users] Objects degraded after adding disks
On Tue, Oct 1, 2019 at 5:2
You meta data PGs *are* backfilling. It is the "61 keys/s" statement in the
ceph status output in the recovery I/O line. If this is too slow, increase
osd_max_backfills and osd_recovery_max_active.
Or just have some coffee ...
Best regards,
=====
Frank Schilder
AIT R
SSD this should
be OK.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Eugen Block
Sent: 11 October 2019 10:24
To: Frank Schilder
Cc: ceph-users@ceph.io
Subject: Re: [ceph-users] Nautilus: PGs stuck remapped
doesn't help and you really need that last bit of data, you might need
support from one of those companies that restore disk data with electron
microscopy.
I successfully transferred OSDs between disks using ddrescue.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109
-profile set sr-ec-6-2-ssd crush-device-class=ssd --force
If not, how can I change the device class of the profile?
Many thanks and best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
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from. Hence, the pool info will drag outdated information along.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Maks Kowalik
Sent: 18 October 2019 14:01
To: Frank Schilder
Subject: Re: [ceph-users] Change device
per disk, each VM getting 50IOPs write
performance. This is probably what you would like to see as well.
If you use replicated data pool, this should be relatively easy. With EC data
pool, this is a bit of a battle.
Good luck,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum
this
container I make all relevant hardware visible. You might also want to expose
/var/run/ceph to be able to use admin sockets without hassle. This way, I
separated admin operations from actual storage daemons and can modify and
restart the admin container as I like.
Best regards,
r design philosophy is "get sufficient performance for small bucks"
and EC does it for us.
Best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Mark Nelson
Sent: 22 October 2019 15:59:21
To: ceph-users@ceph.io
Su
must not be changed ever. Device class and crush root should be
safe to change as they are only relevant at pool creation. Sounds like what you
write confirms this hypothesis.
Best regards and thanks,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
o look for
DWPD>=1.
In addition, as Martin writes, consider upgrading and deploy all new disks with
bluestore.
Best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Martin Verges
Sent: 24 October 2019 21:2
and
ca. 550 client nodes, accounting for about 1500 active ceph clients, 1400
cephfs and 170 RBD images.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Vincent Godin
Sent: 27 November 2019 20:11:23
To: Anthony
h-01 was kickstarted with Centos7.6 while
gnosis was kickstarted with Centos7.7. Otherwise, both machines are deployed
identically. getfattr is the same version on both. Kernel versions are
ceph-01:5.0.2-1.el7.elrepo.x86_64 and gnosis:5.4.2-1.el7.elrepo.x86_64.
Does anyone ha
Thanks for the fast answer!
Is there any (other) way to get a complete list of extended attributes?
Is there something documented - meaning what can I rely on in the future?
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
gards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: David Disseldorp
Sent: 10 December 2019 15:55:07
To: Frank Schilder
Cc: Yan, Zheng; ceph-users
Subject: ORe: [ceph-users] Re: getfattr problem on ceph-fs
Hi,
On Tue, 1
Have you tried "ceph daemon mds.NAME dump snaps" (available since mimic)?
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Lars Täuber
Sent: 17 December 2019 12:32:34
To: Stephan Mueller
Cc: ceph-users@ceph.io
Subj
I think you can do a find for the inode (-inum n). At last I hope you can.
However, I vaguely remember that there was a thread where someone gave a really
nice MDS command for finding the path to an inode in no time.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109
ries ".snap" and
"" at the top?
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Lars Täuber
Sent: 18 December 2019 09:24:02
To: Frank Schilder
Cc: Marc Roos; ceph-users
Subject: Re: [ceph-users] R
, allow rw pool=cephfs-data"
an easy way is:
- ceph auth export
- add the caps with an editor
- ceph auth import
I consider this a bug and thought it was fixed in newer versions already.
Best regards,
=====
Frank Schilder
AIT Risø Campus
out of the box.
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
____
From: Frank Schilder
Sent: 23 January 2020 09:10:41
To: Yoann Moulin; ceph-users
Subject: [ceph-users] Re: cephfs : write error: Operation not permitted
Hi Yoann,
for some reas
==
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Yoann Moulin
Sent: 23 January 2020 10:38:42
To: Frank Schilder; ceph-users
Subject: Re: [ceph-users] Re: cephfs : write error: Operation not permitted
Hi Frank,
>> for some re
//docs.ceph.com/docs/mimic/rados/operations/user-management/?highlight=pool%20tags
Thanks and best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
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Thanks a lot! I will fix the pool meta data and clean up my keys.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Ilya Dryomov
Sent: 25 January 2020 09:01
To: Frank Schilder
Cc: Yoann Moulin; ceph-users
Subject
ent key with access restricted to "/a"
The client will not be able to see the dir layout attribute set at "/", its not
mounted.
Will the data of this client still go to the pool "P", that is, does "/a"
inherit the dir layout transparently to the client
Dear all,
is it possible to upgrade from 13.2.2 directly to 13.2.8 after setting "ceph
osd set pglog_hardlimit" (mimic 13.2.5 release notes), or do I need to follow
this path:
13.2. 2 -> 5 -> 6 -> 8 ?
Thanks!
=
Frank Schilder
AIT Risø Campus
B
-mean-it} : set
Error EINVAL: invalid command
Not sure if this means anything problematic.
Best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
____
From: Frank Schilder
Sent: 31 January 2020 11:08:35
To: ceph-users
Subject: [ce
see any activity on this pool with pool stats and neither are there any
objects.
Is there any way to check if anything is on this pool and how much storage it
uses? "Ceph df" is not helping and neither is "rados ls", which is a bit of an
issue when it comes to sizing.
Best reg
relevant, other objects might just be
transient and therefore never seen.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Frank Schilder
Sent: 31 January 2020 18:19:34
To: Gregory Farnum; CASS Philip
Cc: ceph
a replicated pool for the default data pool ...
to, for example,
If erasure-coded pools are planned for the file system, it is strongly
recommended to use a replicated pool for the default data pool ...
Best regards,
=====
Frank Schilder
AIT Risø Ca
errata: con-fs2-meta2 is the default data pool.
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Frank Schilder
Sent: 03 February 2020 10:08
To: Patrick Donnelly; Konstantin Shalygin
Cc: ceph-users
Subject: Re: [ceph-users] ceph
Thumbs up for that!
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Patrick Donnelly
Sent: 03 February 2020 11:18
To: Frank Schilder
Cc: Konstantin Shalygin; ceph-users
Subject: Re: [ceph-users] ceph fs dir
. Is this in
conflict with allocator=bitmap? If so, what is the way to tune cache sizes (say
if tcmalloc is not used/how to check?)? Are bluestore_cache_* indeed obsolete
as the above release notes suggest, or is this not true?
Many thanks for your help.
Best regards,
=
Frank
osd_memory_target
8589934592
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Stefan Kooman
Sent: 04 February 2020 16:34:34
To: Frank Schilder
Cc: ceph-users
Subject: Re: [ceph-users] osd_memory_target ignored
Hi,
Quoting Frank
regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Stefan Kooman
Sent: 04 February 2020 21:14:28
To: Frank Schilder
Cc: ceph-users
Subject: Re: [ceph-users] osd_memory_target ignored
Quoting Frank Schilder (fr...@dtu.dk
different default memory targets set
for different device classes. Unfortunately, there seem not to be different
memory_target_[devide class] default options. Is there a good way to set
different while avoiding to bloat "ceph config dump" unnecessarily?
Best regards,
=====
Fra
Dear Stefan,
thanks for your help. I opened these:
https://tracker.ceph.com/issues/44010
https://tracker.ceph.com/issues/44011
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Stefan Kooman
Sent: 05 February
For everybody reading this:
It is already possible to set configuration options based on device class using
masks, for example,
ceph config set osd/class:hdd osd_memory_target 2147483648
will set a memory target for HDDs only.
=
Frank Schilder
AIT Risø Campus
Bygning 109
ice outage on any maintenance event
(min_size>=k+1), or risk data loss for fresh writes to non-redundant storage
(min_size=k).
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Vitaliy Filippov
Sent: 14 February 2020 00:10
questions are:
1) Was there a change from 13.2.2 to 13.2.8 explaining this?
2) Are there (rare) conditions under which an mv on cephfs becomes a cp+rm?
3) Am I seeing ghosts?
Thanks for clues and best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 10
nks!
Best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Gregory Farnum
Sent: 26 March 2020 15:20:51
To: Beocat KSU
Cc: ceph-users; Frank Schilder
Subject: Re: [ceph-users] Re: Move on cephfs not O(1)?
I was wonderin
, do the move and set quotas
back again?
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Frank Schilder
Sent: 26 March 2020 16:35:07
To: Gregory Farnum; Beocat KSU
Cc: ceph-users
Subject: [ceph-users] Re: Move on
*find* everything with special ceph attributes?
Thanks and best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
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problem of finding all locations of snapshots in a cephfs.
This used to be a huge pain. Now there is MDS functionality and clever rados
querying for this.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Gregory
o/message/3HWU4DITVDF4IXDC2NETWS5E3EA4PM6Q/
is about this.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Gregory Farnum
Sent: 26 March 2020 18:36
To: Frank Schilder
Cc: ceph-users
Subject: Re: [ceph-users] How
ing codes
(Reed-Solomon codes). From what I remember, the computational complexity of
these codes explodes at least exponentially with m. Out of curiosity, how does
m>3 perform in practice? What's the CPU requirement per OSD?
Best regards,
=====
Frank Schilder
AIT Risø Cam
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
e the same amount of space as the compressed one as both will require the
same allocation size.
Did something change here? Are compressed blobs now co-located in allocations?
Thanks for your help,
=====
Frank Schilder
AIT Risø Campus
Bygning 10
Dear Igor, thanks, done: https://tracker.ceph.com/issues/44878 .
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Igor Fedotov
Sent: 01 April 2020 12:14:02
To: Frank Schilder; ceph-users
Subject: Re: [ceph-users] Bluestore
,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
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Dear Olivier,
thanks for your answer. We are using the virtio driver already.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Olivier AUDRY
Sent: 02 April 2020 18:20:49
To: Frank Schilder; ceph-users
Subject
"features": "00ff",
"entity_id": "con-fs2-hpc",
"hostname": "sn253.hpc.ait.dtu.dk",
"kernel_version": "3.10.0-957.12.2.el7.x86_64",
"root"
If so, what happens if a jewel client without this feature bit set tries to
connect?
3) I guess that in case that as soon as an up-map table is created, only
clients with this bit set can connect. In case we run into problems, is there a
way to roll back?
Many thanks and best regards,
ibs are for the purpose they are used for, with
the above recursive structure it becomes very easy to find what one is looking
for without having to remember anything. Its completely self-documenting.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
___
ss ls-osd" command.
Best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
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wever, I cannot risk data integrity of a production cluster and, therefore,
probably not run the original procedure again.
Many thanks for your help and best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
___
ceph-users mailing l
ent state
active+undersized+degraded, last acting
[234,3,2147483647,158,180,63,2147483647,181]
SLOW_OPS 9788 slow ops, oldest one blocked for 2953 sec, daemons
[osd.0,osd.100,osd.101,osd.112,osd.118,osd.133,osd.136,osd.142,osd.144,osd.145]...
have slow ops.
=====
Frank Schilder
regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Dan van der Ster
Sent: 05 May 2020 16:25:31
To: Frank Schilder
Cc: ceph-users
Subject: Re: [ceph-users] Ceph meltdown, need help
Hi Frank,
Could you share any ceph-osd logs and
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Frank Schilder
Sent: 05 May 2020 16:41:59
To: Dan van der Ster
Cc: ceph-users
Subject: [ceph-users] Re: Ceph meltdown, need help
Dear Dan,
thank you for your fast response. Please find the
I tried that and get:
2020-05-05 17:23:17.008 7fbbe700 0 -- 192.168.32.64:0/2061991714 >>
192.168.32.68:6826/5216 conn(0x7fbbf01d6f80 :-1
s=STATE_CONNECTING_WAIT_CONNECT_REPLY_AUTH pgs=0 cs=0 l=1).handle_connect_reply
connect got BADAUTHORIZER
Strange.
=
Frank Sc
/was really busy trying to serve the IO. It lost
beacons/heartbeats in the process or theygot too old.
Is there a way to pause client I/O?
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Dan van der Ster
Sent: 05 May 2020 17
.
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Alex Gorbachev
Sent: 05 May 2020 17:31:17
To: Frank Schilder
Cc: Dan van der Ster; ceph-users
Subject: Re: [ceph-users] Re: Ceph meltdown, need help
On Tue, May 5, 2020 at 11:27 AM Frank Schilder
about that?
Thanks!
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Dan van der Ster
Sent: 05 May 2020 17:35:33
To: Frank Schilder
Cc: ceph-users
Subject: Re: [ceph-users] Ceph meltdown, need help
OK those requires look correct.
.
Thanks for all your quick help!
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Dan van der Ster
Sent: 05 May 2020 17:45
To: Frank Schilder
Cc: ceph-users
Subject: Re: [ceph-users] Ceph meltdown, need help
ceph
and this will continue in its own thread
"Cluster outage due to client IO" to be opened soon.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
____
From: Frank Schilder
Sent: 25 April 2020 15:34:25
To: ceph-users
Subj
ell. Note that the OSDs in question were in
their own sub-tree and all shut down at the same time. In the past (mimic
13.2.2), such OSDs were marked down after some time. This time (mimic 13.2.8),
they stayed up and in for 4 to 5 days until I restarted them in a different
crush location.
Th
ld data. Its going
to be the dump yard. This means we will eventually get really good performance
for the small amount of warm/hot data once the cluster grows enough.
Hope that answered your questions.
Best regards,
=====
Frank Schilder
AIT Risø Ca
is becomes important, but this would need to be
answered by a developer.
If you can't afford the downtime and are happy with how it works, I wouldn't
bother too much. Would be nice to hear a bit more from someone with technical
insight on code level.
Best regards,
=====
Frank Schi
ew conversation "Cluster outage due to client IO" to have a
clean focused thread. I need a bit more time to collect information though. For
now, our cluster is up and running healthy.
Best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
On all OSD nodes I'm using vm.min_free_kbytes = 4194304 (4GB). This was one of
the first tunings on the cluster.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Anthony D'Atri
Sent: 08 May 2020 10:17
on.ceph-01 config show | grep heart
...
"osd_heartbeat_addr": "-",
...
Is it actually possible to reserve a dedicated (third) VLAN with high QOS to
heartbeat traffic by providing a per-host IP address to this parameter? What
does this parameter do?
Best regards,
==
. Its just an enormous load.
I'm trying to increase
# ceph config set global mon_mgr_beacon_grace 90
but the command doesn't complete. I guess because all the MGRs are out. Is
there any way to force the MONs *not* to mark MGRs as unresponsive?
Best regards,
=====
Frank Sc
oring anything.
Best regads and thanks for any pointers.
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Frank Schilder
Sent: 11 May 2020 14:52:05
To: ceph-users
Subject: [ceph-users] Yet another meltdown starting
Hi all,
an
eacons are processed in a different way than heartbeats
and that there is a critical bottleneck somewhere.
Best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Lenz Grimmer
Sent: 11 May 2020 17:50:34
To: ceph-users@cep
MGR deliver the numbers? Well, is says HEALTH_WARN, so I really hope
this is just missing stats and not complete service outage.
Best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Frank Schilder
Sent: 11 May 2020 19:43:24
=6211 mtu 9000
p2p2: flags=6211 mtu 9000
If you already have 2 VLANs with different IDs, then this flip-over is trivial.
I did it without service outage.
Best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: mj
Sent:
mendation would be to keep both networks if they are on
different VLAN IDs. Then, nothing special is required to do the transition and
this is what I did to simplify the physical networking (two logical networks,
identical physical networking).
Best regards,
=
Frank Schilder
A
: 80.80 M objects, 195 TiB
usage: 249 TiB used, 1.5 PiB / 1.8 PiB avail
pgs: 2543 active+clean
2active+clean+scrubbing+deep
io:
client: 20 MiB/s rd, 21 MiB/s wr, 578 op/s rd, 1.08 kop/s wr
Thanks for any info!
=
Frank Schilder
AIT Risø Campus
ected.
Thanks and best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
____
From: Frank Schilder
Sent: 14 May 2020 12:37
To: Nghia Viet Tran; Bryan Henderson; Ceph users mailing list
Subject: [ceph-users] Re: What is a pgmap?
Hi,
will not continue this here, but rather prepare another thread
"Cluster outage due to client IO" after checking network hardware. It looks as
if two MON+MGR nodes are desperately trying to talk to each other but fail.
And this after only 1.5 years of relationship :)
Thanks for making
clean, set the weight back
to 0 and now the OSD will be vacated as expected.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Andras Pataki
Sent: 18 May 2020 22:25:37
To: ceph-users
Subject: [ceph-users] Reweighting
OSDs). Only OSDs that can
peer are able to respond to changes of the crush map.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Andras Pataki
Sent: 19 May 2020 15:57:49
To: Frank Schilder; ceph-users
Subject: Re
riority?
Thanks and best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
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far.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Amit Ghadge
Sent: 20 May 2020 09:44
To: Frank Schilder
Subject: Re: [ceph-users] total ceph outage again, need help
look like ceph-01 shows in starting, so I
You should see misplaced
objects and remapped PGs, but no degraded objects or PGs.
Do this only when cluster is helth_ok, otherwise things can get really
complicated.
Best regards,
=====
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From
It is a good idea
to have a backup also just for reference and to compare before and after.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Kyriazis, George
Sent: 04 June 2020 00:58:20
To: Frank Schilder
Cc: ceph-
rds,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Wido den Hollander
Sent: 04 June 2020 08:50:16
To: Frank Schilder; Kyriazis, George; ceph-users
Subject: Re: [ceph-users] Re: Best way to change bucket hierarchy
On 6/4/20 12
:::1000203ad7f.:head
in one of our OSD logs. The disk is healthy according to smartctl. Should I
worry about that?
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
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To
touch an EC profile, they are read-only any ways. The crush
parameters are only used at pool creation and never looked at again. You can
override these by editing the crush rule as explained above.
Best regards and good luck,
=====
Frank Schilder
AIT Risø Ca
xpect almost every PG
to be affected.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygning 109, rum S14
From: Kyriazis, George
Sent: 05 June 2020 00:28:43
To: Frank Schilder
Cc: ceph-users
Subject: Re: Best way to change bucket hierarchy
you are into the data movement. If
its almost done, I wouldn't bother. If its another month, it might be worth
trying. As far as I can see, your crush map is going to be a short text file,
so it should be feasible to edit.
Best regards,
=
Frank Schilder
AIT Risø Campus
Bygnin
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