Helps. my vm keep OOM killer

[dickson lee]

Nov 7 05:08:51 SERVER systemd[1]: 100.scope: A process of this unit has been killed by the OOM killer.Nov 8 09:16:04 SERVER systemd[1]: systemd-rfkill.socket: Succeeded.Nov 8 09:16:04 SERVER systemd[1]: Closed Load/Save RF Kill Switch Status /dev/rfkill Watch.Nov 8 09:26:57 SERVER systemd[1]: Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch.Nov 8 09:26:57 SERVER systemd[1]: Starting Load/Save RF Kill Switch Status...Nov 8 09:26:57 SERVER systemd[1]: Started Load/Save RF Kill Switch Status.Nov 8 09:26:59 SERVER systemd[1]: systemd-rfkill.service: Succeeded.Nov 9 04:24:30 SERVER systemd[1]: systemd-journald.service: Killing process 1119 (systemd-journal) with signal SIGABRT.Nov 9 05:15:11 SERVER systemd[1]: systemd-journald.service: Killing process 306745 (systemd-journal) with signal SIGABRT.Nov 9 05:15:11 SERVER systemd[1]: systemd-journal-flush.service: Main process exited, code=killed, status=15/TERMNov 9 05:15:11 SERVER systemd[1]: systemd-journald.service: Killing process 700947 (systemd-journal) with signal SIGABRT.root@SERVER:/var/log# tail -n 10000 /var/log/syslog | grep -i killNov 11 05:04:40 SERVER kernel: [243482.644326] CPU 3/KVM invoked oom-killer: gfp_mask=0x400dc0(GFP_KERNEL_ACCOUNT|__GFP_ZERO), order=0, oom_score_adj=0Nov 11 05:04:40 SERVER kernel: [243482.646797] oom_kill_process.cold+0xb/0x10Nov 11 05:04:40 SERVER kernel: [243482.710066] oom-kill:constraint=CONSTRAINT_NONE,nodemask=(null),cpuset=qemu.slice,mems_allowed=0,global_oom,task_memcg=/qemu.slice/100.scope,task=kvm,pid=2578,uid=0Nov 11 05:04:40 SERVER kernel: [243482.710394] Out of memory: Killed process 2578 (kvm) total-vm:55675856kB, anon-rss:53336724kB, file-rss:1816kB, shmem-rss:0kB, UID:0 pgtables:105272kB oom_score_adj:0Nov 11 05:06:08 SERVER systemd[1]: 100.scope: A process of this unit has been killed by the OOM killer.

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my vm ubuntu keep OOM killer.

every day need manual start vm.


using proxmox 7.4

may i know zfs arh max how to set?


need put how many gb?

now my proxmox have 64 gb. vm 55 gb ram.

 

[dcsapak]

hi,

for how to limit zfs memory usage see:

https://pve.proxmox.com/wiki/ZFS_on_Linux#sysadmin_zfs_limit_memory_usage

need put how many gb?

now my proxmox have 64 gb. vm 55 gb ram.

if the vm really needs 55GiB, and there is no other vm running on the system, you should probably limit zfs to ~6-7 GiB (so theres still ~2GiB left for the host)
if there are other vms/containers running, change it accordingly