Too many open filescd /

[Sessa45]

Hi,

i wanna shutdown / stop a VM. When i try to make this with from the WebGUI it ends with an error (cant't lock file...).
So i tried to stop the VM with a console command:

root@host:/# qm stop 102
Unable to create new inotify object: Too many open files at /usr/share/perl5/PVE/INotify.pm line 396.
root@host:/# qm shutdown 102
Unable to create new inotify object: Too many open files at /usr/share/perl5/PVE/INotify.pm line 396.

What does this mean?

 

[wolfgang]

This means you have too many files open and the kernel can't open new files.
Do you use containers on this host?

 

[Sessa45]

Okay. But why? Is there set a limit to opening files?
The LOAD is on 5% so the CPU has not much to do.

Yes, they runs Containers an VMs on the node.

 

[wolfgang]

Okay. But why? Is there set a limit to opening files?

Yes, every OS has a file limit but you can set it.
If you use containers all file what is open in the container will add to the host opened files.

Here is a link were all needed information are provided.
https://www.tecmint.com/increase-set-open-file-limits-in-linux/

 

[SteveW]

https://unix.stackexchange.com/questions/465196/lxc-systemd-fails-after-the-19th-container

fs.inotify.max_user_instances=1024