问题描述
为什么不建议在kafka-consumer中使用zookeeper，为什么建议改为使用引导服务器?引导服务器的优点是什么?
Why the use of zookeeper in kafka-consumer is deprecated and why it's recommended to use the bootstrap server instead ?what are the advantages of the bootstrap-server?
推荐答案
Kafka使用者需要将偏移量提交给kafka，并从kafka获取偏移量.由于kafka将抵销存储从zookeeper转移到kafka经纪人，因此kafka使用者无需直接与zookeeper进行通信，因此新的kafka使用者无需配置Zookeeper.
Kafka consumer need to commit the offset to kafka and fetch the offset from kafka. Since kafka moved the offset storage from zookeeper to kafka brokers, a kafka consumer does not need to directly communicate with zookeeper, so the new kafka consumer does not need to config the zookeeper.
但是，kafka使用者始终需要连接到kafka经纪人(集群)才能将请求发送到服务器，bootstrap-server只是该集群的某些经纪人，使用它，消费者就可以找到所有经纪人.
However, a kafka consumer always needs to connect to kafka brokers (cluster) to send the request to server, the bootstrap-server is just some brokers of this cluster, and using this, consumer could find all the brokers.
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