Garbage Collection

For every nixbuild.net account there is a limit on how much storage is allowed for uploaded, substituted and built paths. There is also a limit on the maximum lifetime of paths, that is for how long paths are kept around after they have been used, queried or produced.

For users of the public nixbuild.net service, the exact limits are not published and they may vary over time. The limits are configured to avoid re-uploading build inputs too often, under normal use. If you produce or upload a lot of large store paths, or re-use build inputs with large time intervals in between, you might have to spend extra time re-uploading or re-building store paths.

For enterprise users that self-host nixbuild.net, the limits can be configured to fit usage patterns and storage resources.