11:57:24 [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-C-1] WARN o.apache.kafka.clients.NetworkClient - [Consumer clientId=consumer-2, groupId=jiatian_api] 3 partitions have leader……

错误如下：

11:57:24 [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-C-1] WARN  o.apache.kafka.clients.NetworkClient - [Consumer clientId=consumer-2, groupId=test_api] 3 partitions have leader brokers without a matching listener, including [test_topic_order-0, test_topic_goods-0, test_topic_refund-0]

11:57:24 [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-C-1] WARN  o.apache.kafka.clients.NetworkClient - [Consumer clientId=consumer-2, groupId=test_api] 3 partitions have leader brokers without a matching listener, including [test_topic_order-0, test_topic_goods-0, test_topic_refund-0]

11:57:25 [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-C-1] WARN  o.apache.kafka.clients.NetworkClient - [Consumer clientId=consumer-2, groupId=test_api] 3 partitions have leader brokers without a matching listener, including [test_topic_order-0, test_topic_goods-0, test_topic_refund-0]

用tail命令查看会发现日志在不停的刷上面内容，开始排查问题，最后定位在配置文件server.properties里面，通过网上一些文章，尝试了一下

第一个：

把192.168.2.9改成localhost

试了之后，依然报错：

11:57:00 [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-C-1] WARN  o.apache.kafka.clients.NetworkClient - [Consumer clientId=consumer-2, groupId=test_api] Connection to node 0 could not be established. Broker may not be available.

11:57:01 [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-C-1] WARN  o.apache.kafka.clients.NetworkClient - [Consumer clientId=consumer-2, groupId=test_api] Connection to node 0 could not be established. Broker may not be available.

11:57:02 [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-C-1] WARN  o.apache.kafka.clients.NetworkClient - [Consumer clientId=consumer-2, groupId=test_api] Connection to node 0 could not be established. Broker may not be available.

11:57:04 [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-C-1] WARN  o.apache.kafka.clients.NetworkClient - [Consumer clientId=consumer-2, groupId=test_api] Connection to node 0 could not be established. Broker may not be available.

11:57:05 [org.springframework.kafka.KafkaListenerEndpointContainer#0-0-C-1] WARN  o.apache.kafka.clients.NetworkClient - [Consumer clientId=consumer-2, groupId=test_api] Connection to node 0 could not be established. Broker may not be available.

会发现报错改变了，看来这么改不对，回头想了下，首先排除ip和端口问题，然后想到会不会是参数哪里有问题，于是

参数	默认值	描述
broker.id	-1	每一个boker都有一个唯一的id作为它们的名字。当该服务器的IP地址发生改变时，broker.id没有变化，则不会影响consumers的消息情况
num.network.threads	3	broker处理消息的最大线程数，一般情况下数量为cpu核数
num.io.threads	8	处理IO的线程数
num.partitions	1	默认分区数

发现参数也没什么问题，接着往下看配置文件，看了下zookeeper连接，通过ps和netstat命令查到本机上有一个单台和一个由三台组成的zookeeper集群

更改了一下zookeeper，发现日志刷新错误变了，发现需要重启服务，然后重新启动后日志恢复正常