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Junker der Provinz
e0f07c762a
scanLoop shortens its ticker to the error backoff delay after a failed scan, but it decided whether to replace the ticker by comparing the target interval against the configured scan interval instead of against the interval the ticker was actually running at. Once the errors stopped, getScanInterval returned the configured interval again, the comparison came out false, and the ticker was left at the backoff delay - so a single transient scan failure pinned the scanner to one scan per second for the rest of the process lifetime. That is the ~1/second cadence in issue #10874: 658 KB/s of "Cancelled N stale pending balance tasks before re-detection" and 193k orphaned task files over two days. Track the interval the ticker is running at and compare against that, so both entering the backoff and returning to the normal cadence replace the ticker. While in here: - defer ticker.Stop() bound the ticker that was current when the defer was registered, so every replacement ticker leaked on return. Wrap it in a closure. - running was written by Start/Stop and read by all three background loops without synchronisation. Guard it with the existing mutex, fold the running check in triggerScanInternal into the lock it already takes, and make Stop a no-op when not running so a second call cannot close the stop channel twice. Refs #10874