报错原文principal is kafka_test@HADOOP.COMWill use keytabCommit Succeeded21/08/23 10:20:14 INFO NewConsumer: subscribe:bc_testException in thread "main" java.lang.reflect.InvocationTargetExceptionat sun.r

一、日志打印生产对接，启动消费端出现Attempt to heartbeat failed since group is rebalancing，它是kafka消费者组的心跳机制，用于检测超时不能工作的消费这。当有新的消费者加入的时候，kafka消费者组启动rebalance机制，即重平衡，重新分配资源。同时检测组内消费者成员是否可以正常工作。如果心跳检测失败，则会报Attempt to hear