我有一个kafka集群，其中有3个代理，配置如下：

Broker-0 : broker.id=0 ; listeners=PLAINTEXT://localhost:9092 ; log.dirs=/opt/data/kafka/logs-0
Broker-1 : broker.id=1 ; listeners=PLAINTEXT://localhost:9093 ; log.dirs=/opt/data/kafka/logs-1
Broker-2 : broker.id=2 ; listeners=PLAINTEXT://localhost:9094 ; log.dirs=/opt/data/kafka/logs-2

生产者以broker-2为目标来发布消息

sh-3.2# ./kafka-console-producer.sh --broker-list localhost:9094 --topic clusterTopic

我开始和所有的经纪人一起测试

sh-3.2# ./bin/kafka-topics.sh --describe --zookeeper localhost:2181 --topic clusterTopic
Topic:clusterTopic  PartitionCount:1    ReplicationFactor:3 Configs:
Topic: clusterTopic Partition: 0    Leader: 0   Replicas: 0,1,2 Isr: 2,0,1
sh-3.2#

在这一点上，生产者发布的所有消息都由消费者接收
然后我杀了broker-0（现任领导人）

sh-3.2# ./bin/kafka-topics.sh --describe --zookeeper localhost:2181 --topic clusterTopic
Topic:clusterTopic  PartitionCount:1    ReplicationFactor:3 Configs:
Topic: clusterTopic Partition: 0    Leader: 1   Replicas: 0,1,2 Isr: 2,1
sh-3.2#

此时，消费者不再接收生产者发布的消息
然后，我启用了back-broker-0

sh-3.2# ./bin/kafka-topics.sh --describe --zookeeper localhost:2181 --topic clusterTopic
Topic:clusterTopic  PartitionCount:1    ReplicationFactor:3 Configs:
Topic: clusterTopic Partition: 0    Leader: 1   Replicas: 0,1,2 Isr: 2,1,0
sh-3.2#

此时，生产者发布的所有消息都被消费者正确接收
然后我杀了broker-1（现任领导人）

sh-3.2# ./bin/kafka-topics.sh --describe --zookeeper localhost:2181 --topic clusterTopic
Topic:clusterTopic  PartitionCount:1    ReplicationFactor:3 Configs:
Topic: clusterTopic Partition: 0    Leader: 0   Replicas: 0,1,2 Isr: 2,0
sh-3.2#

此时，生产者发布的所有消息仍被消费者正确接收。
为什么经纪人之间的行为如此不同？
更新#1
我注意到一些可能有用的东西：
当我杀死broker-1时，我在消费者控制台上看到以下警告（很多次）

[2018-06-07 13:59:00,866] WARN [Consumer clientId=consumer-1, groupId=console-consumer-20882] Connection to node 1 could not be established. Broker may not be available. (org.apache.kafka.clients.NetworkClient)

但是当我杀死broker-0时，我会看到这些警告消息（很多次）

[2018-06-07 14:04:08,433] WARN [Consumer clientId=consumer-1, groupId=console-consumer-20882] Connection to node 2147483647 could not be established. Broker may not be available. (org.apache.kafka.clients.NetworkClient)
[2018-06-07 14:04:08,434] WARN [Consumer clientId=consumer-1, groupId=console-consumer-20882] Connection to node 0 could not be established. Broker may not be available. (org.apache.kafka.clients.NetworkClient)

我想知道id=2147483647的经纪人是什么？