producer:WARN Bootstrap broker kafka2:9092 disconnected (org.apache.kafka.clients.NetworkClient)

详细报错信息如下：

[root@kafka1 bin]# ./kafka-console-producer.sh -broker-list kafka1:9092,kafka2:9092,kafka3:9092 -topic test
[2019-04-24 08:52:56,252] WARN Bootstrap broker kafka2:9092 disconnected (org.apache.kafka.clients.NetworkClient)
[2019-04-24 08:52:57,757] WARN Bootstrap broker kafka1:9092 disconnected (org.apache.kafka.clients.NetworkClient)
[2019-04-24 08:52:59,259] WARN Bootstrap broker kafka3:9092 disconnected (org.apache.kafka.clients.NetworkClient)
[2019-04-24 08:53:00,861] WARN Bootstrap broker kafka2:9092 disconnected (org.apache.kafka.clients.NetworkClient)
[2019-04-24 08:53:02,363] WARN Bootstrap broker kafka1:9092 disconnected (org.apache.kafka.clients.NetworkClient)
[2019-04-24 08:53:03,866] WARN Bootstrap broker kafka2:9092 disconnected (org.apache.kafka.clients.NetworkClient)
[2019-04-24 08:53:05,368] WARN Bootstrap broker kafka3:9092 disconnected (org.apache.kafka.clients.NetworkClient)
[2019-04-24 08:53:06,871] WARN Bootstrap broker kafka1:9092 disconnected (org.apache.kafka.clients.NetworkClient)
[2019-04-24 08:53:08,374] WARN Bootstrap broker kafka2:9092 disconnected (org.apache.kafka.clients.NetworkClient)
[2019-04-24 08:53:09,876] WARN Bootstrap broker kafka3:9092 disconnected (org.apache.kafka.clients.NetworkClient)
[2019-04-24 08:53:11,478] WARN Bootstrap broker kafka2:9092 disconnected (org.apache.kafka.clients.NetworkClient)
[2019-04-24 08:53:12,981] WARN Bootstrap broker kafka1:9092 disconnected (org.apache.kafka.clients.NetworkClient)

 

原因为jdk版本错误：

kafka_2.11-0.10.0.1.tgz需要jdk1.8版本，原来用的jdk1.7版本，替换jdk为1.8之后重启kafka正常。