random proxmox crash after upgrade to proxmox 7

ilia987

Member
Sep 9, 2019
237
10
23
35
i upgraded entire cluster from proxmox 6.4 -> 7 with Ceph Nautilus->Octopus->Pacific

the problem: we few centos 7 lxc that we cannot upgrade to 8.
i used the workaround from one of the (post in this forum) and added
Code:
systemd.unified_cgroup_hierarchy=0
to the grub.

i applied it to two hosts in the cluster.

hosts randomly crash usually at least two at a time

*i think i saw once at a glance at the cluster HA tab, that those two servers have some time drifts at the Status tab ( but it might be due to the servers crashing or at process of booting up)

any idea how i can investigate or prevent it ?
 
Last edited:

ilia987

Member
Sep 9, 2019
237
10
23
35
i found the problem that cased the random reboots
chrony service was not installed on any of the upgraded proxmox servers, i had to manually install it on all of them.
since then there is no random crash, but there image from the post above still bothers me, some servers are out of sync with the time, and the lrm (marked in red)

Screenshot from 2021-10-14 10-26-30.png
 

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