I’m at step 6. I updated/rebooted the host to complete “installing the new packages and restarting the ceph-osd daemon” on the first OSD host. All the systemctl definitions to start the OSDs were deleted, all the properties in /var/lib/ceph/osd/ceph-*
directories were deleted. All the files in /var/lib/ceph/osd-lockbox, for comparison, were untouched and still present.
Peeking into step 7 I can run ceph-volume:
# ceph-volume simple scan /dev/sda1
Running command: /usr/sbin/cryptsetup status /dev/sda1
Running command: /usr/sbin/cryptsetup status 93fb5f2f-0273-4c87-a718-886d7e6db983
Running command: /bin/mount -v /dev/sda5 /tmp/tmpF5F8t2
stdout: mount: /dev/sda5 mounted on /tmp/tmpF5F8t2.
Running command: /usr/sbin/cryptsetup status /dev/sda5
Running command: /bin/ceph --cluster ceph --name client.osd-lockbox.93fb5f2f-0273-4c87-a718-886d7e6db983 --keyring /tmp/tmpF5F8t2/keyring config-key get dm-crypt/osd/93fb5f2f-0273-4c87-a718-886d7e6db983/luks
Running command: /bin/umount -v /tmp/tmpF5F8t2
stderr: umount: /tmp/tmpF5F8t2 (/dev/sda5) unmounted
Running command: /usr/sbin/cryptsetup --key-file - --allow-discards luksOpen /dev/sda1 93fb5f2f-0273-4c87-a718-886d7e6db983
Running command: /bin/mount -v /dev/mapper/93fb5f2f-0273-4c87-a718-886d7e6db983 /tmp/tmpYK0WEV
stdout: mount: /dev/mapper/93fb5f2f-0273-4c87-a718-886d7e6db983 mounted on /tmp/tmpYK0WEV.
--> broken symlink found /tmp/tmpYK0WEV/block -> /dev/mapper/a05b447c-c901-4690-a249-cc1a2d62a110
Running command: /usr/sbin/cryptsetup status /tmp/tmpYK0WEV/block_dmcrypt
Running command: /usr/sbin/cryptsetup status /dev/mapper/93fb5f2f-0273-4c87-a718-886d7e6db983
Running command: /bin/umount -v /tmp/tmpYK0WEV
stderr: umount: /tmp/tmpYK0WEV (/dev/mapper/93fb5f2f-0273-4c87-a718-886d7e6db983) unmounted
Running command: /usr/sbin/cryptsetup remove /dev/mapper/93fb5f2f-0273-4c87-a718-886d7e6db983
--> OSD 0 got scanned and metadata persisted to file: /etc/ceph/osd/0-93fb5f2f-0273-4c87-a718-886d7e6db983.json
--> To take over management of this scanned OSD, and disable ceph-disk and udev, run:
--> ceph-volume simple activate 0 93fb5f2f-0273-4c87-a718-886d7e6db983
#
#
# ceph-volume simple activate 0 93fb5f2f-0273-4c87-a718-886d7e6db983
--> Required devices (block and data) not present for bluestore
--> bluestore devices found: [u'data']
--> RuntimeError: Unable to activate bluestore OSD due to missing devices
#
Okay, this created /etc/ceph/osd/*.json. This is cool. Is there a command or option which will read these files and mount the devices?
peter
| Peter Eisch | | Senior Site Reliability Engineer |
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From: Alfredo Deza <adeza@xxxxxxxxxx>
Date: Wednesday, July 24, 2019 at 2:20 PM
To: Peter Eisch <peter.eisch@xxxxxxxxxxxxxxx>
Cc: Paul Emmerich <paul.emmerich@xxxxxxxx>, "ceph-users@xxxxxxxxxxxxxx" <ceph-users@xxxxxxxxxxxxxx>
Subject: Re: Upgrading and lost OSDs
If you are at Step 6 then it is *crucial* to understand that the tooling used to create the OSDs is no longer available and Step 7 *is absolutely required*.
ceph-volume has to scan the system and give you the output of all OSDs found so that it can persist them in /etc/ceph/osd/*.json files and then can later be
I didn't do anything to specific commands for just updating the ceph RPMs in this process.
It is not clear if you are at Step 6 and wondering why OSDs are not up, or you are past that and ceph-volume wasn't able to detect anything.
peter
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Peter Eisch
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Senior Site Reliability Engineer
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Australia | Bosnia and Herzegovina | Brazil | Canada | Singapore | Switzerland | United Kingdom | USA
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Confidentiality Notice: The information contained in this e-mail, including any attachment(s), is intended solely for
use by the designated recipient(s). Unauthorized use, dissemination, distribution, or reproduction of this message by anyone other than the intended recipient(s), or a person designated as responsible for delivering such messages to the intended recipient,
is strictly prohibited and may be unlawful. This e-mail may contain proprietary, confidential or privileged information. Any views or opinions expressed are solely those of the author and do not necessarily represent those of Virgin Pulse, Inc. If you have
received this message in error, or are not the named recipient(s), please immediately notify the sender and delete this e-mail message.
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From: Paul Emmerich <paul.emmerich@xxxxxxxx>
Date: Wednesday, July 24, 2019 at 1:39 PM
To: Peter Eisch <peter.eisch@xxxxxxxxxxxxxxx>
Cc: Xavier Trilla <xavier.trilla@xxxxxxxxxxx>, "ceph-users@xxxxxxxxxxxxxx" <ceph-users@xxxxxxxxxxxxxx>
Subject: Re: Upgrading and lost OSDs
On Wed, Jul 24, 2019 at 8:36 PM Peter Eisch <mailto:peter.eisch@xxxxxxxxxxxxxxx> wrote:
# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 1.7T 0 disk
├─sda1 8:1 0 100M 0 part
├─sda2 8:2 0 1.7T 0 part
└─sda5 8:5 0 10M 0 part
sdb 8:16 0 1.7T 0 disk
├─sdb1 8:17 0 100M 0 part
├─sdb2 8:18 0 1.7T 0 part
└─sdb5 8:21 0 10M 0 part
sdc 8:32 0 1.7T 0 disk
├─sdc1 8:33 0 100M 0 part
That's ceph-disk which was removed, run "ceph-volume simple scan"
--
Paul Emmerich
Looking for help with your Ceph cluster? Contact us at
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...
I'm thinking the OSD would start (I can recreate the .service definitions in systemctl) if the above were mounted in a way like they are on another of my hosts:
# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 1.7T 0 disk
├─sda1 8:1 0 100M 0 part
│ └─97712be4-1234-4acc-8102-2265769053a5 253:17 0 98M 0 crypt /var/lib/ceph/osd/ceph-16
├─sda2 8:2 0 1.7T 0 part
│ └─049b7160-1234-4edd-a5dc-fe00faca8d89 253:16 0 1.7T 0 crypt
└─sda5 8:5 0 10M 0 part /var/lib/ceph/osd-lockbox/97712be4-9674-4acc-1234-2265769053a5
sdb 8:16 0 1.7T 0 disk
├─sdb1 8:17 0 100M 0 part
│ └─f03f0298-1234-42e9-8b28-f3016e44d1e2 253:26 0 98M 0 crypt /var/lib/ceph/osd/ceph-17
├─sdb2 8:18 0 1.7T 0 part
│ └─51177019-1234-4963-82d1-5006233f5ab2 253:30 0 1.7T 0 crypt
└─sdb5 8:21 0 10M 0 part /var/lib/ceph/osd-lockbox/f03f0298-1234-42e9-8b28-f3016e44d1e2
sdc 8:32 0 1.7T 0 disk
├─sdc1 8:33 0 100M 0 part
│ └─0184df0c-1234-404d-92de-cb71b1047abf 253:8 0 98M 0 crypt /var/lib/ceph/osd/ceph-18
├─sdc2 8:34 0 1.7T 0 part
│ └─fdad7618-1234-4021-a63e-40d973712e7b 253:13 0 1.7T 0 crypt
...
Thank you for your time on this,
peter
From: Xavier Trilla <mailto:xavier.trilla@xxxxxxxxxxx>
Date: Wednesday, July 24, 2019 at 1:25 PM
To: Peter Eisch <mailto:peter.eisch@xxxxxxxxxxxxxxx>
Cc: "mailto:ceph-users@xxxxxxxxxxxxxx" <mailto:ceph-users@xxxxxxxxxxxxxx>
Subject: Re: Upgrading and lost OSDs
Hi Peter,
Im not sure but maybe after some changes the OSDs are not being recongnized by ceph scripts.
Ceph used to use udev to detect the OSDs and then moved to lvm, which kind of OSDs are you running? Blustore or filestore? Which version did you use to create them?
Cheers!
El 24 jul 2019, a les 20:04, Peter Eisch <mailto:mailto:peter.eisch@xxxxxxxxxxxxxxx> va escriure:
Hi,
I’m working through updating from 12.2.12/luminious to 14.2.2/nautilus on centos 7.6. The managers are updated alright:
# ceph -s
cluster:
id: 2fdb5976-1234-4b29-ad9c-1ca74a9466ec
health: HEALTH_WARN
Degraded data redundancy: 24177/9555955 objects degraded (0.253%), 7 pgs degraded, 1285 pgs undersized
3 monitors have not enabled msgr2
...
I updated ceph on a OSD host with 'yum update' and then rebooted to grab the current kernel. Along the way, the contents of all the directories in /var/lib/ceph/osd/ceph-*/ were deleted. Thus I have 16 OSDs down from this. I can manage the undersized but I'd
like to get these drives working again without deleting each OSD and recreating them.
So far I've pulled the respective cephx key into the 'keyring' file and populated 'bluestore' into the 'type' files but I'm unsure how to get the lockboxes mounted to where I can get the OSDs running. The osd-lockbox directory is otherwise untouched from when
the OSDs were deployed.
Is there a way to run ceph-deploy or some other tool to rebuild the mounts for the drives?
peter
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