kafka踩到的坑:kafka.common.FailedToSendMessageException: Failed to send messages after 3 tries.
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kafka.common.FailedToSendMessageException: Failed to send messages after 3 tries.
遇到该错误主要有以下几种原因
1.服务器的zookeeper和kafka未开启
2.配置文件中,没有配置advertised.host.name和advertised.port
3.服务器防火墙未关闭,或者无法连接9092端口
解决
1.运行producer java API时,首先开启服务器的zookeeper和kafka
2.找到$KAFKA_HOME/config/中的配置文件,配置advertised.host.name="ip",
advertised.port="port".具体解释可以参考配置文件中的注释
3.在本地telnet ip 9092,观察是否可以连接,如不能连接,关闭服务器防火墙,或者打开9092端口。
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