Re: [Nix-dev] Pinning nixpkgs on unstable channel: retention of cached packages
Good to know. I expected that something like this would be the case. The context is that I'm doing some performance benchmarks of kafka and kafka running on top of mesos, and would like to have a 100% reproducible setup that I can give to our client. I guess that in theory, I could export the closures of the nixops machines and store them somewhere, but that's probably overkill :) Thanks! 2016-07-11 16:25 GMT+02:00 Eelco Dolstra : > Hi, > > On 07/11/2016 10:54 AM, Maarten Hoogendoorn wrote: > > > I was wondering if it's safe to depend on any commit in the unstable > channel, > > and still be able to fetch the derivations build by Hydra from the > binary cache. > > No. Currently any version except the most recent of any channel may be > garbage-collected at some point. Note that this also applies to the stable > channels. > > -- > Eelco Dolstra | LogicBlox, Inc. | http://nixos.org/~eelco/ > ___ > nix-dev mailing list > nix-dev@lists.science.uu.nl > http://lists.science.uu.nl/mailman/listinfo/nix-dev > ___ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Pinning nixpkgs on unstable channel: retention of cached packages
Hi, On 07/11/2016 10:54 AM, Maarten Hoogendoorn wrote: > I was wondering if it's safe to depend on any commit in the unstable channel, > and still be able to fetch the derivations build by Hydra from the binary > cache. No. Currently any version except the most recent of any channel may be garbage-collected at some point. Note that this also applies to the stable channels. -- Eelco Dolstra | LogicBlox, Inc. | http://nixos.org/~eelco/ ___ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev
Re: [Nix-dev] Pinning nixpkgs on unstable channel: retention of cached packages
On 16-07-11 10:54am, Maarten Hoogendoorn wrote: > Hi there, > > I was wondering if it's safe to depend on any commit in the unstable > channel, and still be able to fetch the derivations build by Hydra from the > binary cache. You mean on the unstable channel itself? Or on commits the unstable channel already contains? It is only safe to assume cache.nixos.org has substitutions for commits the unstable channel did visit. And only as long as there is no garbage-collect. That means your safest bet is to use unstable directly and update regularly. -- Proudly written in Mutt with Vim on NixOS. Q: Why is this email five sentences or less? A: http://five.sentenc.es May take up to five days to read your message. If it’s urgent, call me. ___ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev
[Nix-dev] Pinning nixpkgs on unstable channel: retention of cached packages
Hi there, I was wondering if it's safe to depend on any commit in the unstable channel, and still be able to fetch the derivations build by Hydra from the binary cache. - Maarten ___ nix-dev mailing list nix-dev@lists.science.uu.nl http://lists.science.uu.nl/mailman/listinfo/nix-dev