二、kafka中幂等的使用

最新推荐文章于 2025-04-06 02:05:49 发布

小飞侠fly

最新推荐文章于 2025-04-06 02:05:49 发布

阅读量832

点赞数 3

分类专栏：其他文章标签： kafka java

本文链接：https://blog.youkuaiyun.com/qq_34306010/article/details/119811512

版权

kafka幂等性是针对生产者的，需要开启以下配置

1、enable.idempotence:true

2、retries:大于0，如果小于等于0的话则抛出ConfigException

Exception in thread "main" org.apache.kafka.common.config.ConfigException: Must set retries to non-zero when using the idempotent producer.
	at org.apache.kafka.clients.producer.ProducerConfig.maybeOverrideAcksAndRetries(ProducerConfig.java:432)
	at org.apache.kafka.clients.producer.ProducerConfig.postProcessParsedConfig(ProducerConfig.java:400)
	at org.apache.kafka.common.config.AbstractConfig.<init>(AbstractConfig.java:110)
	at org.apache.kafka.common.config.AbstractConfig.<init>(AbstractConfig.java:129)
	at org.apache.kafka.clients.producer.ProducerConfig.<init>(ProducerConfig.java:481)
	at org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:326)
	at org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:298)
	at org.apache.kafka.clients.producer.MyProducer.main(MyP