Hello!
I'm facing hot-unplug issue in Debian VM
Which is on Proxmox
In the "Options" of the VM in Proxmox, "Disk, Network, USB, Memory" are indicated
NUMA - also has the “true” state
"memhp_default_state=online" was added to the grub and the "update-grub" was made. VM was shutdown and started.
VM has:
I can't use hot-unplug in Proxmox and reduce the memory to 16,384 MB. Because I get an error in the proxmox web interface after a timeout of about 10 seconds.
And I get error msg in dmesg
But I can successfully add 1024 or remove 1024 MB. Before I launch Percona XtraDB Cluster.
After launching Percona, I have the opportunity to add more memory, and if I try to reduce it, I get the error described above.
Please help me understand why I am getting this error.
I also noticed that when hot-unplug is enabled, Percona XtraDB Cluster does not work correctly and produces errors in the logs
After disabling hot-unplug for the VM, Percona began to work stably and without errors.
I'm facing hot-unplug issue in Debian VM
Code:
Operating System: Debian GNU/Linux 10 (buster)
Kernel: Linux 4.19.0-25-cloud-amd64Which is on Proxmox
Code:
proxmox-ve: 7.3-1 (running kernel: 5.15.107-2-pve)
pve-manager: 7.4-17 (running version: 7.4-17/513c62be)In the "Options" of the VM in Proxmox, "Disk, Network, USB, Memory" are indicated
NUMA - also has the “true” state
"memhp_default_state=online" was added to the grub and the "update-grub" was made. VM was shutdown and started.
VM has:
Code:
CPU(s): 8
Memory: 32GI can't use hot-unplug in Proxmox and reduce the memory to 16,384 MB. Because I get an error in the proxmox web interface after a timeout of about 10 seconds.
Code:
Parameter verification failed. (400)
memory: hotplug problem - 400 Parameter verification failed. dimm46: error unplug memory moduleAnd I get error msg in dmesg
Code:
[ 7267.305701] memory memory276: Offline failed.
[ 7267.323125] Offlined Pages 32768
[ 7267.325257] Offlined Pages 32768
[ 7267.327526] Offlined Pages 32768
[ 7267.329599] Offlined Pages 32768
[ 7267.331664] memory memory276: Offline failed.
[ 7267.348972] Offlined Pages 32768
[ 7267.351225] Offlined Pages 32768
[ 7267.353343] Offlined Pages 32768
[ 7267.355505] Offlined Pages 32768
[ 7267.357488] memory memory276: Offline failed.But I can successfully add 1024 or remove 1024 MB. Before I launch Percona XtraDB Cluster.
After launching Percona, I have the opportunity to add more memory, and if I try to reduce it, I get the error described above.
Please help me understand why I am getting this error.
I also noticed that when hot-unplug is enabled, Percona XtraDB Cluster does not work correctly and produces errors in the logs
Code:
[ERROR] Error log throttle: 884 'Can't create thread to handle new connection' error(s) suppressed
[ERROR] Can't create thread to handle new connection(errno= 11)
[ERROR] Error log throttle: 895 'Can't create thread to handle new connection' error(s) suppressed
[ERROR] Can't create thread to handle new connection(errno= 11)
[ERROR] Error log throttle: 904 'Can't create thread to handle new connection' error(s) suppressedAfter disabling hot-unplug for the VM, Percona began to work stably and without errors.
Last edited:
(at the very least 5.10)