Re: RBD Mirroring

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You didn't answer if the remote_key is defined. If it's not then your rbd-mirror daemon won't work which confirms what you pasted (daemon health: ERROR). You need to fix that first.

Zitat von Michel Niyoyita <micou12@xxxxxxxxx>:

Thanks Eugen,

On my prod Cluster (as named it) this is the output the following command
checking the status : rbd mirror pool status images --cluster prod
health: WARNING
daemon health: UNKNOWN
image health: WARNING
images: 4 total
    4 unknown

but on bup cluster there are some errors which I am not able to fetch out:
rbd mirror pool status images --cluster bup
health: ERROR
daemon health: ERROR
image health: OK
images: 0 total

so once create an images on the prod cluster , there is no syncing between
two cluster . but I can create an image from one cluster to another which
means there is communication between . but pool images is not syncing.
Kindly if I miss something help me again.

Michel

On Tue, Feb 13, 2024 at 3:41 PM Eugen Block <eblock@xxxxxx> wrote:

Did you define ceph_rbd_mirror_remote_key? According to the docs [1]:

> ceph_rbd_mirror_remote_key : This must be the same value as the user
> ({{ ceph_rbd_mirror_local_user }}) keyring secret from the primary
> cluster.

[1]
https://docs.ceph.com/projects/ceph-ansible/en/latest/rbdmirror/index.html

Zitat von Michel Niyoyita <micou12@xxxxxxxxx>:

> Hello team,
>
> I have two clusters in testing environment deployed using ceph-ansible
> running on ubuntu 20.04 with ceph Pacific version . I am testing
mirroring
> between two clusters , in pool mode . Our production Cluster is for
backend
> storage for openstack.  This is how I configured the rbdmirros.yml:
>
> ceph_rbd_mirror_configure: true
> ceph_rbd_mirror_mode: "pool"
> ceph_rbd_mirror_remote_cluster: "prod"
> ceph_rbd_mirror_remote_user: "admin"
>
> This is my primary cluster "/etc/ceph/ "directory:
>
> root@ceph-osd1:/etc/ceph# ls -l
> total 52
> -r-------- 1 root root  151 Feb 13 08:47 bup.client.admin.keyring
> -rw-r--r-- 1 root root  866 Feb 13 08:45 bup.conf
> -r-------- 1 ceph ceph  151 Feb 12 13:35 ceph.client.admin.keyring
> -rw------- 1 ceph ceph  131 Feb 12 13:41 ceph.client.crash.keyring
> -rw-r--r-- 1 ceph ceph  863 Feb 12 13:35 ceph.conf
> -rw-rw-r-- 1 ceph ceph 1294 Feb 12 13:40 ceph-dashboard.crt
> -rw------- 1 ceph ceph 1704 Feb 12 13:40 ceph-dashboard.key
> -r-------- 1 ceph ceph  140 Feb 12 13:36 ceph.mgr.ceph-osd1.keyring
> -r-------- 1 ceph ceph  140 Feb 12 13:36 ceph.mgr.ceph-osd2.keyring
> -r-------- 1 ceph ceph  140 Feb 12 13:36 ceph.mgr.ceph-osd3.keyring
> -r-------- 1 root root  151 Feb 13 08:38 prod.client.admin.keyring
> -rw-r--r-- 1 root root  863 Feb 13 08:37 prod.conf
> -rw-r--r-- 1 root root   92 Aug 29 16:38 rbdmap
>
>
> and this is my secondary "/etc/ceph" directory:
>
> root@ceph-osdb1:/etc/ceph# ls -l
> total 60
> -rw------- 1 root root    0 Feb 13 09:26 ansible.1e1q9lzv_ceph-ansible
> -rw------- 1 root root    0 Feb 13 09:32 ansible.dk1h4kzp_ceph-ansible
> -r-------- 1 root root  151 Feb 13 09:02 bup.client.admin.keyring
> -rw-r--r-- 1 root root  866 Feb 13 09:02 bup.conf
> -r-------- 1 ceph ceph  151 Feb 13 08:23 ceph.client.admin.keyring
> -rw------- 1 ceph ceph  131 Feb 13 08:29 ceph.client.crash.keyring
> -rw------- 1 ceph ceph  138 Feb 13 09:19
> ceph.client.rbd-mirror.ceph-osdb1.keyring
> -rw------- 1 ceph ceph  132 Feb 13 09:19
ceph.client.rbd-mirror-peer.keyring
> -rw-r--r-- 1 ceph ceph  866 Feb 13 08:23 ceph.conf
> -rw-rw-r-- 1 ceph ceph 1302 Feb 13 08:28 ceph-dashboard.crt
> -rw------- 1 ceph ceph 1708 Feb 13 08:28 ceph-dashboard.key
> -r-------- 1 ceph ceph  141 Feb 13 08:24 ceph.mgr.ceph-osdb1.keyring
> -r-------- 1 ceph ceph  141 Feb 13 08:24 ceph.mgr.ceph-osdb2.keyring
> -r-------- 1 ceph ceph  141 Feb 13 08:24 ceph.mgr.ceph-osdb3.keyring
> -r-------- 1 root root  151 Feb 13 09:01 prod.client.admin.keyring
> -rw-r--r-- 1 root root  863 Feb 13 09:01 prod.conf
> -rw-r--r-- 1 root root   92 Aug 29 16:38 rbdmap
>
>
> Kindly I need your help if I missing something because while running I am
> facing the following error:
>
> TASK [ceph-rbd-mirror : create a temporary file]
>
**************************************************************************************
> Tuesday 13 February 2024  09:58:59 +0000 (0:00:00.349)       0:04:00.698
> ******
> changed: [ceph-osdb1 -> ceph-osdb1]
>
> TASK [ceph-rbd-mirror : write secret to temporary file]
>
*******************************************************************************
> Tuesday 13 February 2024  09:58:59 +0000 (0:00:00.533)       0:04:01.232
> ******
> fatal: [ceph-osdb1 -> {{ groups[mon_group_name][0] }}]: FAILED! =>
>   msg: |-
>     The task includes an option with an undefined variable. The error
was:
> 'ceph_rbd_mirror_remote_key' is undefined
>
>     The error appears to be in
> '/opt/ceph-ansible/roles/ceph-rbd-mirror/tasks/configure_mirroring.yml':
> line 150, column 7, but may
>     be elsewhere in the file depending on the exact syntax problem.
>
>     The offending line appears to be:
>
>
>         - name: write secret to temporary file
>           ^ here
>
>
>
> Kindly help
> _______________________________________________
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