[pbs-devel] [PATCH v2 proxmox{, -backup} 0/2] Move ProcessLocker to tmpfs

[Gabriel Goller]

On 12/6/23 15:36, Thomas Lamprecht wrote:
> Am 06/12/2023 um 14:41 schrieb Fabian Grünbichler:
>> [..]
> Wolfgang and I discussed this last week or so, and we'd use a flag living
> in `/run/proxmox-backup` touched via proxmox-backup-server.postinst on
> upgrade to signal that the new locking should not be used yet, after reboot
> all old daemons are gone and so is the flag, so the new locking can be used.
>
> Manual downgrades we don't care for, as those need special attention anyway.
> The duplicate code can then be ripped out in the next major release.
>
> Wolfgang has a PoC about this on his staff repo IIRC.
We should also add a section in the upgrade guide on how to upgrade 
*without*
rebooting, so stopping all old processes, removing the flag manually, 
updating,
then starting the new process. (I'd guess a lot of people don't want to 
reboot)