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  1. Kafka
  2. KAFKA-3761

Controller has RunningAsBroker instead of RunningAsController state

          Details

          • Type: Bug
          • Status: Resolved
          • Priority: Major
          • Resolution: Fixed
          • Affects Version/s: None
          • Fix Version/s: 0.10.1.0
          • Component/s: None
          • Labels:
            None

            Description

            In `KafkaServer.start`, we start `KafkaController`:

            /* start kafka controller */
kafkaController = new KafkaController(config, zkUtils, brokerState, kafkaMetricsTime, metrics, threadNamePrefix)
kafkaController.startup()

            Which sets the state to `RunningAsController` in `KafkaController.onControllerFailover`:

            `brokerState.newState(RunningAsController)`

            And this later gets set to `RunningAsBroker`.

            This doesn't match the diagram in `BrokerStates`. Jun Rao suggested that we should start the controller after we register the broker in ZK, but this seems tricky as we need to controller in `KafkaApis`.

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                  • Assignee:
                    theduderog Roger Hoover
                    Reporter:
                    ijuma Ismael Juma
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