[lxc-users] Unable to fork - LXD process limit?

[Phillips, Julian]

Hello,

I'm trying to setup LXD (2.0.9) on Ubuntu 16.04 to run 32 Centos 6 containers, but I seem to be running into a process limit?

After building the containers, if I run "lxc exec container -- su - user" then I get "can not fork user shell: Resource temporarily unavailable".  The only thing I can see that might be related is that /sys/fs/cgroups/pids/lxc/pids.current is a bit over 1024, which sounds like I might be hitting a 1024 limit.  However /sys/fs/cgroups/pids/lxc/pids.max is "max", and I don't know what else might apply.  Does anyone know if there is a limit I need to change somewhere to allow LXD to run more than 1024 processes at once?

Yours hopefully,
Julian

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