[PVE-User] Cant connect to ceph anymore

[proxmox at elchaka.de]

Hello Marcus,

Thanks again for your attention :)

Downgrade is Really a passable Way  - dont know why i didnt come to this conclusion by myself ^^

So i tried to Downgrade via ceph-deploy install  --release Jewel <host> but didnt worked so i decide to remove and reinstal ceph again after this.

So i did 
Ceph-deploy remove ceph (dont know the exact Commands Jet...) 
this worked but this had also removed proxmox components like proxmox-ve and qemu-server etc. Oo :*(

Luckywise this hadnt  any effect to our Running VMs.. Puh..  

So i tried to reinstall the removed proxmox components but this is actually Not allowed because some libaries are in use ...

I guess i had to Reboot the Server in a Controlled way and then to instal proxmox again hopefully without loosing the actually Running VMs and local Storage.

- Mehmet 

Am 14. September 2018 08:00:17 MESZ schrieb Marcus Haarmann <marcus.haarmann at midoco.de>:
>Hi, 
>
>so the client is updated to luminous but kernel not (?) 
>Maybe you should downgrade for the moment, as jewel clients are
>supported. 
>
>Marcus Haarmann 
>
>
>Von: "proxmox" <proxmox at elchaka.de> 
>An: "pve-user" <pve-user at pve.proxmox.com> 
>Gesendet: Donnerstag, 13. September 2018 23:59:32 
>Betreff: Re: [PVE-User] Cant connect to ceph anymore 
>
>Hey Marcus, 
>
>Thanks for your Message. 
>
>Am 13. September 2018 22:58:04 MESZ schrieb Marcus Haarmann
><marcus.haarmann at midoco.de>: 
>>Hi, 
>> 
>>so you would drive a 12.2 (luminous) service with a 10.x (jewel) 
>>client. 
>
>Sorry, with 
>
>"The last Step was to Update the ceph Client on this proxmox node, but
>now i am Not able to connect to the ceph Storage anymore :*(" 
>
>I ment ive upgraded this Node to 12.2.x, too. After this i had the
>descriped issue. 
>
>>Just a thought: 
>> 
>>Check the "ceph features" output on your server if it allows jewel 
>>clients. 
>>Sample output should contain a group with a jewel attribute in the 
>>client section. 
>
>This is clean. All other Node are already luminous (but with PVE 5.x) 
>
>> 
>>If this is not the case, try to set: 
>>ceph osd set-require-min-compat-client jewel 
>
>It is already On Jewel, becouse ive upgraded from Jewel but didnt set
>this to luminous till all Node are Running luminous fine. 
>
>Hope you or someone Else has Another idea why i can not See my Images
>through the proxmox GUI anymore - and so i can not start my appropriate
>vms. 
>
>- Mehmet 
>
>>(which should be default for luminous, but can be removed which leads 
>>to incompability) 
>> 
>>Check this link for details: 
>>https://ceph.com/community/new-luminous-upgrade-complete/ 
>> 
>>Maybe this helps, good luck 
>>Marcus Haarmann 
>> 
>> 
>>Von: proxmox at elchaka.de 
>>An: "pve-user" <pve-user at pve.proxmox.com> 
>>Gesendet: Donnerstag, 13. September 2018 19:41:13 
>>Betreff: [PVE-User] Cant connect to ceph anymore 
>> 
>>Hi, 
>> 
>>I had a proxmox 4.x Server with installed ceph Jewel (10.x) via 
>>ceph-deploy. 
>> 
>>The ceph Cluster is standalone Not managed by proxmox. 
>> 
>>I could use this ceph Cluster without any issues and the vms working 
>>fine. 
>> 
>>Now I upgraded my ceph Cluster to 12.2.x and was still able to connect
>
>>my vms via proxmox (qemu/librbd). 
>> 
>>The last Step was to Update the ceph Client on this proxmox node, but 
>>now i am Not able to connect to the ceph Storage anymore :*( 
>> 
>> 
>>Actually i cannot Update the proxmox Node to 5.x because there is a 
>>important vm Running with local Storage. 
>> 
>>Proxmox Show me a empty list when i want to Browse the ceph Cluster 
>>through the gui - but i dont get any error. 
>> 
>>Any suggestions? 
>> 
>>Thanks in advise 
>>- Mehmet 
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