问题描述
使用Azure Event Hub，客户端通过kafka发送消息到Event Hub中，规律性的遇见Timeout Exception
" send fail; nested exception is org.springframework.kafka.kafkaException: xxx"
问题解答
Kafka客户端与Event Hub服务端的连接(Connection）空闲事件过长，Event Hub服务端会自动关闭Idle时间达到4分钟的连接，进而导致之后再通过这个connection进行的请求无法完成且报错，在修改了connections.max.idle.ms 这个参数为180000 后解决。
Azure closes inbound Transmission Control Protocol (TCP) idle > 240,000 ms, which can result in sending on dead connections (shown as expired batches because of send timeout).
参考资料
Java client configuration properties : https://learn.microsoft.com/en-us/azure/event-hubs/apache-kafka-configurations#java-client-configuration-properties
标签：Exception,Hub,kafka,Azure,Kafka,Event From： https://www.cnblogs.com/lulight/p/18653817