lukasandClaude Opus 4.8 887ba7ade6 sync-v2 §10.7: mock-provider soak/load harness + poll jitter ...

- loadtest/soak_sync.py + mock_provider.py: fully isolated soak for acceptance
  criterion 7. Creates a throwaway webmail_soak DB + uses Redis DB 14 (both torn
  down), simulates N accounts (default 1000, 20% active sessions) across 3
  in-process coordinators with a mock MailProvider (no real IMAP). Asserts:
  all accounts owned, persistent sockets <= hot*1.05, oldest lag < POLL_COLD*1.15,
  RSS stable. Steady state = after every account has completed its first sync.
  Configurable via SOAK_* / POLL_* env for fast smoke runs.
- engine: poll_all_loop and secondary_poll_loop now jitter their waits (first at a
  random point in the interval, later +/-10%) so a fleet claimed together doesn't
  poll in lockstep — anti-thundering-herd, a real improvement surfaced by the soak.

Validated: 60-account smoke passes all four criteria; full gate green (238 tests).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-07-19 08:09:44 +02:00

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