Files
Redflag/aggregator-server/internal/database/migrations
jpetree331 3ca42d50f4 fix(concurrency): B-2 data integrity and race condition fixes
- Wrap agent registration in DB transaction (F-B2-1/F-B2-8)
  All 4 ops atomic, manual DeleteAgent rollback removed
- Use SELECT FOR UPDATE SKIP LOCKED for atomic command delivery (F-B2-2)
  Concurrent requests get different commands, no duplicates
- Wrap token renewal in DB transaction (F-B2-9)
  Validate + update expiry atomic
- Add rate limit to GET /agents/:id/commands (F-B2-4)
  agent_checkin rate limiter applied
- Add retry_count column, cap stuck command retries at 5 (F-B2-10)
  Migration 029, GetStuckCommands filters retry_count < 5
- Cap polling jitter at current interval (fixes rapid mode) (F-B2-5)
  maxJitter = min(pollingInterval/2, 30s)
- Add exponential backoff with full jitter on reconnection (F-B2-7)
  calculateBackoff: base=10s, cap=5min, reset on success

All tests pass. No regressions from A-series or B-1.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
2026-03-29 08:00:36 -04:00
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