| 1 | # 2025-04-03 |
| 2 | |
| 3 | Attendees: dgrig/erethon, mic92, vcunat |
| 4 | |
| 5 | - erethon: |
| 6 | - Tested umbriel email server -> works https://github.com/NixOS/infra/pull/600 |
| 7 | - Security bug tracker: no news, still running and ingesting CVEs. |
| 8 | - Want to work on deprecating go-neb for matrix-alertmanager tomorrow (4/4) |
| 9 | https://github.com/NixOS/infra/issues/549#issuecomment-2764778573 |
| 10 | - mic92: |
| 11 | - Our Nixos infra hydra patches needs to be fixed or merged into master: |
| 12 | https://github.com/NixOS/hydra/pull/1456 |
| 13 | - staging-hydra: |
| 14 | - Works and trial-migration worked. |
| 15 | - We still need to figure out how to copy old store path from old |
| 16 | evaluations to the new cache (worked with shivaraj and m1-s) |
| 17 | - maybe we can use |
| 18 | https://releases.nixos.org/nixpkgs/nixpkgs-17.03pre96825.497e6d2/store-paths.xz |
| 19 | instead |
| 20 | - Glacier can be actually also quite expensive or very slow access |
| 21 | - small objects need to be excluded through filters |
| 22 | - migration costs from s3 |
| 23 | - vcunat: |
| 24 | - Hydra: |
| 25 | - Runs stable |
| 26 | - No big issues, xz compression bottlenecks less worse because of more CPU |
| 27 | power |
| 28 | - Build-ingestions of queue-runner is the new bottleneck (maybe a large |
| 29 | latency between s3 and the server) |
| 30 | - Jeremy: |
| 31 | - Mailserver: |
| 32 | - Everything prepared and we just need to update DNS and sunset the old |
| 33 | service |
| 34 | - Maybe need another dump of the user |
| 35 | - Saturday: 16:00 UTC / 18:00 Berlin Time |
| 36 | - Arian: |
| 37 | - binary cache: |
| 38 | - looked into moving parts of the binary cache into instant access glacier |
| 39 | tier |
| 40 | - phased approach. E.g. start with `nars/a*` then `nars/b*` etc ... |
| 41 | - rule of thumb: access is twice as expensive but storage twice as cheap |
| 42 | compared to infrequent access. but same latency guarantees |
| 43 | - TODO: Please give Mic92 the s3 cost sheet |
| 44 | - current storage (not bandwidth cost): |
| 45 | - Want to enable object versioning on narinfos |
| 46 | - edef: |
| 47 | - https://releases.nixos.org/nixpkgs/nixpkgs-17.03pre96825.497e6d2/store-paths.xz |
| 48 | - narinfos are always in standard tier. due to small size. (Except for some |
| 49 | pathalogically large narinfos) |
| 50 | - rules |
| 51 | - recent retrieval |
| 52 | - recent upload |
| 53 | - or in releases.nixos.org |