can't open '/sys/fs/cgroup/memory/lxc/XXX/ns/memory.stat' - No such file or directory (500)

[BJ78945]

Hello,

I have a cluster with 3 nodes. After updating to the latest version and restarting all nodes, there is the following problem on a node. After a while, all LXC containers no longer display any status on this node only. The icon is just a question mark and when you click on the container the following error message appears "can't open '/sys/fs/cgroup/memory/lxc/XXX/ns/memory.stat' - No such file or directory (500)". Maybe someone knows a solution to the problem.

Spoiler: pveversion -v

NODE1:~# pveversion -v
proxmox-ve: 6.1-2 (running kernel: 5.3.18-3-pve)
pve-manager: 6.1-8 (running version: 6.1-8/806edfe1)
pve-kernel-helper: 6.1-7
pve-kernel-5.3: 6.1-6
pve-kernel-5.0: 6.0-11
pve-kernel-5.3.18-3-pve: 5.3.18-3
pve-kernel-5.3.13-1-pve: 5.3.13-1
pve-kernel-5.0.21-5-pve: 5.0.21-10
pve-kernel-4.4.98-6-pve: 4.4.98-107
pve-kernel-4.4.67-1-pve: 4.4.67-92
ceph-fuse: 12.2.12-pve1
corosync: 3.0.3-pve1
criu: 3.11-3
glusterfs-client: 5.5-3
ifupdown: 0.8.35+pve1
ksm-control-daemon: 1.3-1
libjs-extjs: 6.0.1-10
libknet1: 1.15-pve1
libpve-access-control: 6.0-6
libpve-apiclient-perl: 3.0-3
libpve-common-perl: 6.0-17
libpve-guest-common-perl: 3.0-5
libpve-http-server-perl: 3.0-5
libpve-storage-perl: 6.1-5
libqb0: 1.0.5-1
libspice-server1: 0.14.2-4~pve6+1
lvm2: 2.03.02-pve4
lxc-pve: 3.2.1-1
lxcfs: 4.0.1-pve1
novnc-pve: 1.1.0-1
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.1-3
pve-cluster: 6.1-4
pve-container: 3.0-23
pve-docs: 6.1-6
pve-edk2-firmware: 2.20200229-1
pve-firewall: 4.0-10
pve-firmware: 3.0-6
pve-ha-manager: 3.0-9
pve-i18n: 2.0-4
pve-qemu-kvm: 4.1.1-4
pve-xtermjs: 4.3.0-1
qemu-server: 6.1-7
smartmontools: 7.1-pve2
spiceterm: 3.1-1
vncterm: 1.6-1
zfsutils-linux: 0.8.3-pve1

NODE2:~# pveversion -v
proxmox-ve: 6.1-2 (running kernel: 5.3.18-3-pve)
pve-manager: 6.1-8 (running version: 6.1-8/806edfe1)
pve-kernel-helper: 6.1-7
pve-kernel-5.3: 6.1-6
pve-kernel-5.0: 6.0-11
pve-kernel-5.3.18-3-pve: 5.3.18-3
pve-kernel-5.3.13-1-pve: 5.3.13-1
pve-kernel-5.0.21-5-pve: 5.0.21-10
pve-kernel-4.4.98-6-pve: 4.4.98-107
pve-kernel-4.4.67-1-pve: 4.4.67-92
ceph-fuse: 12.2.12-pve1
corosync: 3.0.3-pve1
criu: 3.11-3
glusterfs-client: 5.5-3
ifupdown: 0.8.35+pve1
ksm-control-daemon: 1.3-1
libjs-extjs: 6.0.1-10
libknet1: 1.15-pve1
libpve-access-control: 6.0-6
libpve-apiclient-perl: 3.0-3
libpve-common-perl: 6.0-17
libpve-guest-common-perl: 3.0-5
libpve-http-server-perl: 3.0-5
libpve-storage-perl: 6.1-5
libqb0: 1.0.5-1
libspice-server1: 0.14.2-4~pve6+1
lvm2: 2.03.02-pve4
lxc-pve: 3.2.1-1
lxcfs: 4.0.1-pve1
novnc-pve: 1.1.0-1
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.1-3
pve-cluster: 6.1-4
pve-container: 3.0-23
pve-docs: 6.1-6
pve-edk2-firmware: 2.20200229-1
pve-firewall: 4.0-10
pve-firmware: 3.0-6
pve-ha-manager: 3.0-9
pve-i18n: 2.0-4
pve-qemu-kvm: 4.1.1-4
pve-xtermjs: 4.3.0-1
qemu-server: 6.1-7
smartmontools: 7.1-pve2
spiceterm: 3.1-1
vncterm: 1.6-1
zfsutils-linux: 0.8.3-pve1

NODE3:~# pveversion -v
proxmox-ve: residual config (running kernel: 5.3.13-1-pve)
pve-manager: 6.1-5 (running version: 6.1-5/9bf06119)
pve-kernel-5.3: 6.1-1
pve-kernel-5.3.13-1-pve: 5.3.13-1
pve-kernel-5.0.21-1-pve: 5.0.21-2
pve-kernel-4.4.98-6-pve: 4.4.98-107
pve-kernel-4.4.79-1-pve: 4.4.79-95
ceph-fuse: 12.2.12-pve1
corosync: 3.0.2-pve4
criu: 3.11-3
glusterfs-client: 5.5-3
ifupdown: 0.8.35+pve1
ksm-control-daemon: 1.3-1
libjs-extjs: 6.0.1-10
libknet1: 1.13-pve1
libpve-access-control: 6.0-5
libpve-apiclient-perl: 3.0-2
libpve-common-perl: 6.0-9
libpve-guest-common-perl: 3.0-3
libpve-http-server-perl: 3.0-3
libpve-storage-perl: 6.1-3
libqb0: 1.0.5-1
libspice-server1: 0.14.2-4~pve6+1
lvm2: 2.03.02-pve3
lxc-pve: 3.2.1-1
lxcfs: 3.0.3-pve60
novnc-pve: 1.1.0-1
proxmox-mini-journalreader: 1.1-1
proxmox-widget-toolkit: 2.1-1
pve-cluster: 6.1-2
pve-container: 3.0-15
pve-docs: 6.1-3
pve-edk2-firmware: 2.20191127-1
pve-firewall: 4.0-9
pve-firmware: 3.0-6
pve-ha-manager: 3.0-8
pve-i18n: 2.0-3
pve-qemu-kvm: 4.1.1-2
pve-xtermjs: 3.13.2-1
qemu-server: 6.1-4
smartmontools: 7.0-pve2
spiceterm: 3.1-1
vncterm: 1.6-1
zfsutils-linux: 0.8.2-pve2

Spoiler: pvecm status

Cluster information
-------------------
Name: XXX
Config Version: 9
Transport: knet
Secure auth: on

Quorum information
------------------
Date: Sun Apr 5 10:17:35 2020
Quorum provider: corosync_votequorum
Nodes: 3
Node ID: 0x00000001
Ring ID: 1.314
Quorate: Yes

Votequorum information
----------------------
Expected votes: 3
Highest expected: 3
Total votes: 3
Quorum: 2
Flags: Quorate

Membership information
----------------------
Nodeid Votes Name
0x00000001 1 IPNODE1 (local)
0x00000002 1 IPNODE2
0x00000003 1 IPNODE3

Thanks!

Alex

 

[oguz]

hi,

please also post the config of CT pct config CTID and debug logs [0]

[0]: https://pve.proxmox.com/wiki/Linux_Container#_obtaining_debugging_logs