[2025-12-01 02:00:36,813] INFO [Controller id=1] Processing automatic preferred replica leader election (kafka.controller.KafkaController) [2025-12-01 02:00:36,813] TRACE [Controller id=1] Checking need to trigger auto leader balancing (kafka.controller.KafkaController) [2025-12-01 02:00:36,823] DEBUG [Controller id=1] Topics not in preferred replica for broker 1 HashMap() (kafka.controller.KafkaController) [2025-12-01 02:00:36,823] TRACE [Controller id=1] Leader imbalance ratio for broker 1 is 0.0 (kafka.controller.KafkaController)