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Issues with CageFS after expanding /home mount

PWHosting-Admin

We recently ran out of room on our staging server which is hosted at Linode. We have /home mounted to an additional storage volume, so I expanded the volume and ran e2fsck and resize2fs to make use of the extra space, then remounted /home to the volume. Everything went pretty well, except now we are experiencing an issue with two different user accounts (so far) where CageFS becomes disabled or broken on their accounts. I usually find out when they open a ticket because the can't SSH to their account and the website is returning a 503 error. When I connect to the server and try `su - account` I get an error "cannot create child process". If I run `cagefsctl -M` to remount CageFS it will work for a while (sometimes hours, sometimes a few day) but the issue eventually comes back. Running `cagefsctl --force-update` has not resolved the issue, and running `cagefsctl --sanity-check` doesn't report any errors. Any help troubleshooting this would be greatly appreciated.

Comments

4 comments

Date Votes
  • Andrew
    Translate

    cannot create child process usually means that the account is using all of the allocated resources. Have you looked at stats and see if any treshold for those account(s) has been reached?

    Andrew N. - cPanel Plesk VMWare Certified Professional
    Do you need immediate assistance? 20 minutes response time!* Open a ticket
    EmergencySupport - Professional Server Management and One-time Services

    0
  • PWHosting-Admin

    Hi Andrew, thanks for the reply. I'm not seeing any issues with either account as far as resource utilization goes. CloudLinux reported no faults and they're both well short of their disk space quotas. Is there anywhere else I could check? I'm not seeing anything particularly helpful in /var/log/messages either around the time of the issues.

    0
  • cPRex Jurassic Moderator

    This sounds like something CloudLinux would likely want to see a ticket on.

    0
  • Andrew
    Translate

    Have you tried to disable CageFS completely then enable it again?

    Andrew N. - cPanel Plesk VMWare Certified Professional
    Do you need immediate assistance? 20 minutes response time!* Open a ticket
    EmergencySupport - Professional Server Management and One-time Services

    0

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