LVE error: error: 'NoneType' object has no attribute 'initialize'

Issue

Cagefs, lve_namespaces, and lvectl services are failing to run, examples of the systemctl status outputs are below:

lvectl.service - lvectl service
Loaded: loaded (/usr/lib/systemd/system/lvectl.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Tue 2022-09-27 16:20:56 MSK; 48min ago
Process: 2498219 ExecStart=/usr/share/cloudlinux/lvectl start (code=exited, status=1/FAILURE)
Main PID: 2498219 (code=exited, status=1/FAILURE)
Tasks: 0 (limit: 1648608)
Memory: 64.0K
CGroup: /system.slice/lvectl.service

lve_namespaces.service - lve_namespaces service
Loaded: loaded (/usr/lib/systemd/system/lve_namespaces.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Tue 2022-09-27 16:20:48 MSK; 49min ago
Process: 2498062 ExecStart=/usr/share/cloudlinux/lve_namespaces start (code=exited, status=1/FAILURE)
Main PID: 2498062 (code=exited, status=1/FAILURE)
Tasks: 0 (limit: 1648608)
Memory: 16.0K
CGroup: /system.slice/lve_namespaces.service

cagefs.service - CageFS service
Loaded: loaded (/usr/lib/systemd/system/cagefs.service; enabled; vendor preset: disabled)
Active: failed (Result: exit-code) since Tue 2022-09-27 16:21:07 MSK; 49min ago
Process: 2497610 ExecStop=/usr/share/cagefs/service/cagefs stop (code=exited, status=1/FAILURE)
Process: 2498673 ExecStart=/usr/share/cagefs/service/cagefs start (code=exited, status=1/FAILURE)
Main PID: 2498673 (code=exited, status=1/FAILURE)

Also, the lvectl command fails to execute with the following error:

# lvectl
error: 'NoneType' object has no attribute 'initialize'
stat("/var/.cagefs", 0x7ffce527ad10)= -1 ENOENT (No such file or directory)
stat("/etc/cloudlinux-edition-solo", 0x7ffce527ae90) = -1 ENOENT (No such file or directory)
stat("/etc/cloudlinux-edition-admin", 0x7ffce527ae90) = -1 ENOENT (No such file or directory)
stat("/etc/cloudlinux-container", 0x7ffce527b1f0) = -1 ENOENT (No such file or directory)
openat(AT_FDCWD, "/proc/lve/list", O_RDONLY|O_CLOEXEC) = 3
fstat(3, {st_mode=S_IFREG|0444, st_size=0, ...}) = 0
ioctl(3, TCGETS, 0x7ffce527b2a0)= -1 ENOTTY (Inappropriate ioctl for device)
lseek(3, 0, SEEK_CUR) = 0
ioctl(3, TCGETS, 0x7ffce527b250)= -1 ENOTTY (Inappropriate ioctl for device)
read(3, "10:LVE\tlCPU\tlCPUW\tnCPU\tlEP\tlNPRO"..., 8192) = 4013
close(3)= 0
write(2, "error: 'NoneType' object has no "..., 55error: 'NoneType' object has no attribute 'initialize'
)

Environment

• CloudLinux 8 with no panel/custom panel.

Solution

The fix (LU-3527) is currently in the rollout, to update you may run the following:

# yum groupupdate alt-python27-cllib --enablerepo=cloudlinux-updates-testing
# yum update lvemanager lve-utils --enablerepo=cloudlinux-updates-testing
# yum update lve-stats

Please note, that "testing" updates are not recommended for installation on production servers. 

For additional information, you may refer to CloudLinux | Changelog.