Hi,
every day after a backup of VMs usage of RAM on some nodes in my cluster increases (from 5GB to 9 GB per day). It happenes until node crashes.
It started to happen after upgrade to Proxmox VE 8.2.2 and kernel 6.8.4-3-pve. As storage we use CEPH. First of all, I thought it was caused by Ceph, but I have some nodes without Ceph with the same issue.
This is the output of
Memory usage graph in UI says that 192 GB is used. Today I migrated all VMs from node and it is still using 52 GBs of RAM:
![Snímek obrazovky z 2024-07-25 11-52-21.png Snímek obrazovky z 2024-07-25 11-52-21.png](https://forum.proxmox.com/data/attachments/71/71518-ecfa3d0c035847b117bcc3aa70b2dd0c.jpg)
Output from
Here is graph of memory usage for last month:
![Snímek obrazovky z 2024-07-25 12-13-37.png Snímek obrazovky z 2024-07-25 12-13-37.png](https://forum.proxmox.com/data/attachments/71/71520-c2a99aafb1ca46015fff41cce2eb5b20.jpg)
Biggest dropdown is caused by reboot to make kernel upgrade to the latest from 6.8.4-3-pve to 6.8.8-2-pve. The issue still persists.
On Kernel 6.5.13-5-pve there wasn't any issue with RAM usage. Today I tried to downgrade kernel on one node, so I will post an update if it helped.
every day after a backup of VMs usage of RAM on some nodes in my cluster increases (from 5GB to 9 GB per day). It happenes until node crashes.
It started to happen after upgrade to Proxmox VE 8.2.2 and kernel 6.8.4-3-pve. As storage we use CEPH. First of all, I thought it was caused by Ceph, but I have some nodes without Ceph with the same issue.
This is the output of
free -h
on node without Ceph:
Code:
total used free shared buff/cache available
Mem: 251Gi 146Gi 58Gi 94Mi 977Mi 105Gi
Swap: 3.7Gi 3.7Gi 6.2Mi
Memory usage graph in UI says that 192 GB is used. Today I migrated all VMs from node and it is still using 52 GBs of RAM:
![Snímek obrazovky z 2024-07-25 11-52-21.png Snímek obrazovky z 2024-07-25 11-52-21.png](https://forum.proxmox.com/data/attachments/71/71518-ecfa3d0c035847b117bcc3aa70b2dd0c.jpg)
Output from
free -h
:
Code:
total used free shared buff/cache available
Mem: 251Gi 3.8Gi 198Gi 70Mi 654Mi 247Gi
Swap: 3.7Gi 202Mi 3.5Gi
Here is graph of memory usage for last month:
![Snímek obrazovky z 2024-07-25 12-13-37.png Snímek obrazovky z 2024-07-25 12-13-37.png](https://forum.proxmox.com/data/attachments/71/71520-c2a99aafb1ca46015fff41cce2eb5b20.jpg)
Biggest dropdown is caused by reboot to make kernel upgrade to the latest from 6.8.4-3-pve to 6.8.8-2-pve. The issue still persists.
On Kernel 6.5.13-5-pve there wasn't any issue with RAM usage. Today I tried to downgrade kernel on one node, so I will post an update if it helped.