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Modules

Scheduler

Scheduler

failover-scheduler provides two scheduled tasks: an expiry-cleanup scheduler that purges expired store entries, and an observable report scheduler that publishes a daily summary of all active failover configurations.

Expiry Cleanup Scheduler

ExpiryCleanupScheduler runs FailoverHandler.clean() on a cron schedule:

failoverHandler.clean();
// → failoverStore.cleanByExpiry(Instant.now())
// → deletes all entries where EXPIRE_ON < now

Default schedule: every hour.

application.yml
failover:
  scheduler:
    enabled: true
    cleanup-cron: "0 0 * * * *"    # every hour (Spring cron: s m h d M dow)

Observable Report Scheduler

ObservableScheduler publishes a daily summary of all discovered @Failover methods to the configured ObservablePublisher. The default publisher writes to SLF4J at INFO level.

Default schedule: daily at midnight.

application.yml
failover:
  scheduler:
    report-cron: "0 0 0 * * *"    # daily midnight

The report lists each failover by name, expiry configuration, and domain — useful for auditing active failover coverage.

Disabling the Schedulers

application.yml
failover:
  scheduler:
    enabled: false

Both schedulers are disabled together. There is no way to disable them individually via properties; declare a custom scheduler bean to replace the default behaviour.

Next Steps