Talk:Storage optimization
How to avoid running out of space while building?
tl;dr Would it be possible to mention which of the options are applicable during a nix-build?
I'm running into issues with running out of space while trying to nix-build on a GitLab.com runner:
$ nix-build '<nixpkgs/nixos>' -I nixos-config=configuration.nix --option min-free $((100 * 1000 * 1000)) --option max-free $((1000 * 1000 * 1000)) […] copying path '/nix/store/ygfb2shrqbs8s2953rmshxzg69xyr124-jetbrains-jdk-11.0.10-b1427' from 'https://cache.nixos.org'... running auto-GC to free 1000000000 bytes preallocating file of 160251638 bytes: No space left on device copying path '/nix/store/6wcgglhg22q7y6fmclmjp36q4z8r4x3i-gnome-connections-40.0.1' from 'https://cache.nixos.org'... finding garbage collector roots... cannot build derivation '/nix/store/vm23zldzlr1jy3h1ja0m9fxgjjzgp1il-idea-ultimate-2021.1.2.drv': 1 dependencies couldn't be built copying path '/nix/store/cyjdcj3mxzp23a0ipcvf9lmigwmc3fid-opencv-4.5.2' from 'https://cache.nixos.org'... cannot build derivation '/nix/store/3z7sp8n5v1hx8r9aywcc92gz7k1mmpxy-system-path.drv': 1 dependencies couldn't be built cannot build derivation '/nix/store/qvn2lsn3isqz5i5a69acjvh5ssaq4sn2-system-path.drv': 1 dependencies couldn't be built cannot build derivation '/nix/store/w5qvgwb68x5q1hpgrf5j91fyvrqd14bh-system-path.drv': 1 dependencies couldn't be built cannot build derivation '/nix/store/l23jfilchzw687y9banwmap6cc1zdl8d-nixos-system-nixos-21.11pre295944.0747387223e.drv': 1 dependencies couldn't be built cannot build derivation '/nix/store/n66jbc39yx70klbdypn62sg7k45m7a7a-nixos-system-nixos-21.11pre295944.0747387223e.drv': 1 dependencies couldn't be built cannot build derivation '/nix/store/vpkk1hiqs3r0ibn6gk1g4h9nbb1gyqfm-nixos-system-nixos-21.11pre295944.0747387223e.drv': 1 dependencies couldn't be built note: can't create trash directory: creating directory '/nix/store/trash': No space left on device deleting garbage... waiting for auto-GC to finish on exit... deleting '/nix/store/trash' deleting unused links... note: currently hard linking saves -1.78 MiB error: build of '/nix/store/bardwaxzi1n0z2vrn38cmgys41kd15a1-nixos-vm.drv', '/nix/store/vpkk1hiqs3r0ibn6gk1g4h9nbb1gyqfm-nixos-system-nixos-21.11pre295944.0747387223e.drv', '/nix/store/vynd65iraj23n9shdd4rra0a7sqqz5mx-nixos-vm.drv' failed
It looks like the min-free and max-free options are working, but it's running out of space while garbage collecting? Also, I can't quite tell which one of these options are relevant to a nix-build run, so it would be a bit of programming by accident if I started trying everything out to see if any of it will make the build work.