35b7c4f82b69c9317fcdb4ec4b5a82fdab19f757
This prevents a race where multiple threads see that machine X is missing path P, and start sending it concurrently. Nix handles this correctly, but it's still wasteful (especially for the case where P == GHC). A more refined scheme would be to have per machine, per path locks.
To start hacking on Hydra, run:
$ ./dev-shell
$ ./configure $configureFlags --prefix=/opt/hydra
$ make
$ make install
Or, if you just want to build from source (on x86_64-linux):
$ nix-build -A build.x86_64-linux release.nix
Description
Working fork of Lix - carries the adaptive load-aware build-remote patch. Upstream: gerrit.lix.systems
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