Grabbing logs: error opening journald follow descriptor: "Too many open files"

Hello,

At some point and without some apparent reason, the containers deployed on my devices stopped showing log after throwing the error in the subject.
How can I get around this?

Thanks in advance,
Federico

Hi,
Can you try to run sysctl -w fs.inotify.max_user_instances=512 in the HostOS? If this fixes the problem we know what the problem is. You can validate that the command work by running sysctl fs.inotify.max_user_instances which should yield 512.

If this fixes the problem, could you grant us support access to such a device as well. We would like to research how many inotify instances your application uses to find a sane default value for BalenaOS. Thank you.

Also if this fixes your problem this (https://github.com/balena-os/meta-balena/issues/1592) would be the issue to track.

1 Like

Thanks, that fixed the issue! Unfortunately, I don’t own the device so I cannot grant such access.
Thank you

I ran into the same issue, running sysctl -w fs.inotify.max_user_instances=512 fixes the issue once the container restarts the next time.

Same issue here, running sysctl -w fs.inotify.max_user_instances=512 does not fix the issue.
Note that I’m running ResinOS-In-Container: