[SOLVED]Ceph dashboard cause ceph manager fail to start

[Ting]

Hi, everyone;

I have a 8 nodes cluster running for a while, and I have ceph on the same cluster. Yesterday, I tried to install and enable ceph dashboard, then caused my ceph manager service failed to restart and all manager service stopped and can not start, here is what I did step by step, and also I attached veversion -v" and "ceph.conf" file:

1. apt install ceph-mgr-dashboard (on all service manager nodes, I have 3 manager services, installed on all 3 of them) = ok
2. then, on #2 node(has manager service), i did: ceph mgr module enable dashboard --force. (I have to use --force, otherwise, will no enable)
3. on #2 node, ceph config-key set mgr/dashboard/server_addr ::
4. on #2 node, ceph mgr module disable dashboard
5. on #2 node, ceph mgr module enable dashboard
6. on #2 node, systemctl restart ceph-mgr@[servername].service. Now, here is the my problem, manager service failed to restart, and all rest of manager service shows stopped, and I can not restart, give me error message and exit code 1.
7. I have to destory all ceph managers, then re-create them in proxmox gui. Ceph running ok at all time.

I was not sure what did I do wrong, Any help would be much appreciated.

 

[7thSon]

I just ran into the same prollem.
After doing a

systemctl reset-failed ceph-mgr@%YOUR-NODE-NAME-HERE%.service

i was able to start the managers again

I'm on Ceph pacific 16.2.9 & Proxmox 7.3-3

 

[Ting]

I just run into the same issue.
After doing a

systemctl reset-failed ceph-mgr@%YOUR-NODE-NAME-HERE%.service

i was able to start the managers again

great, thank you for that.

After I looking this more, I decided not to use ceph dashboard, because I found most what I need from proxmox ceph gui and logfile, also I can get more info from couple command line commands,

May I ask what feature you found most useful from ceph dashboard that proxmox ceph gui can not provide? again, thank you for your reply.

 

[7thSon]

I have only enabled ceph dashboard on our DEV cluster so far to play around with it a bit. Even though I already know the dashboard from plain ceph installations.
But I see it very similar to you, I will probably not use ceph dashboard in our production environment together with proxmox.

 

[Ting]

good to know, I marked this thread as SOLVED. thanks again.