[KAFKA-7532] Missing stringification in error message "Removed ArrayBuffer() from list of shutting down brokers. (kafka.controller.KafkaController)" - ASF JIRA

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Details

Type: Bug
Status: Resolved
Priority: Minor
Resolution: Fixed
Affects Version/s: 2.0.0
Fix Version/s: 2.2.0, 2.1.1, 2.0.2
Component/s: controller
Labels:
None

Description

Messages I saw in my logs:

[2018-10-23 12:19:59,975] INFO [RequestSendThread controllerId=0] Shutting down (kafka.controller.RequestSendThread)
[2018-10-23 12:19:59,975] INFO [RequestSendThread controllerId=0] Stopped (kafka.controller.RequestSendThread)
[2018-10-23 12:19:59,975] INFO [RequestSendThread controllerId=0] Shutdown completed (kafka.controller.RequestSendThread)
[2018-10-23 12:19:59,977] INFO [Controller id=0] Broker failure callback for 1 (kafka.controller.KafkaController)
[2018-10-23 12:19:59,977] INFO [Controller id=0] Removed ArrayBuffer() from list of shutting down brokers. (kafka.controller.KafkaController)

Looking at https://github.com/apache/kafka/blob/a947fe8da8646058335ff76b9a744462a3337a63/core/src/main/scala/kafka/controller/KafkaController.scala#L414 I'd guess there's a deadBrokersThatWereShuttingDown.mkString(",") missing, but my Scala-foo is too weak.