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@Cron jobs run on every replica — bounty expiry and idempotency cleanup execute N times concurrently in a multi-instance deploy #586
Description
Problem
BountyExpiryScheduler.sweepOverdueBounties and IdempotencyCleanupService.removeExpired are plain @Cron(EVERY_HOUR) handlers with no leader election or lock. With 3 replicas, each sweep runs 3 times at the same moment. That makes the read-then-save race in expireOverdue (#460) routine, and once expiry triggers refunds (#26), it would attempt duplicate on-chain refunds.
Suggested fix
Guard each job with a Postgres advisory lock (SELECT pg_try_advisory_lock(<job id>)), or make scheduling opt-in per instance (RUN_SCHEDULERS=true).
Activity
yodakkak commentedon Oct 19, 2026
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devpeter999 commentedon Oct 19, 2026
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drips-wave commentedon Oct 19, 2026
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fix: update frontend url, load relations in bounties, guard scheduler…
drips-wave commentedon Oct 20, 2026
This issue has been completed by @devpeter999 as part of the Stellar Wave Program's 10th Wave 🥳
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