kevinveenbirkenbachandClaude Opus 5.5 67f6c8d7e8 fix(cache): keep the applications carrier valid across token store writes ...

Since 778c18fb23 the carrier key holds the tokens file's mtime and size.
sys-token-store changed that stat on every inclusion (00_core.yml
touched the file) and on every persisted token, and nothing re-parked a
carrier afterwards. Every later task's fresh worker then rendered the
applications SPOT cold, 30 to 80 s each. On main fea6f31d9f (run
38812964308) seven heavy jobs logged 194 to 287 such tasks and ran out
of the 20400 s budget; the same jobs before 778c18fb23 logged 65 to 83,
all of them real waits.

- 00_core.yml touches the store with modification_time and access_time
  preserved, so it only creates a missing file. In swarm the controller
  sees the store over NFS with attribute caching, and the touch alone
  made the second pass go cold without any write.
- write.yml re-parks the carrier when the persist or the controller
  mirror changed the store. Both run once, so every host that ran the
  include gets the same verdict.
- tasks/utils/setup/role.yml re-parks after every role on every host,
  so hosts that did not run the writing role recover too. Where the
  key still matches this serves the carried payload; measured 0.1 s per
  role in a local compose deploy.
- The tokens file enters the key as the SHA-256 of its content,
  memoised per inode, mtime and size, so a touch no longer changes the
  key. A stat that still matches serves the memo (1.67 us against
  1.41 us for the old stat signature), and a stale stat keeps key and
  YAML cache on the same old content instead of pairing new content
  with an old key.
- applications_carrier opens the tokens file before it computes the
  key, so on the NFS-mounted controller the parked key reflects the
  revalidated attributes rather than a cached stat that changes a
  minute later.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

2026-10-16 11:11:47 +02:00

..

group.yml

fix(deploy): keep role setup in run_after order across hosts

2026-08-13 00:59:53 +02:00

role.yml

fix(cache): keep the applications carrier valid across token store writes

2026-10-16 11:11:47 +02:00