zookeeper正常,kafka总是挂掉的问题:A broker is already registered on the path /brokers/ids/0.
Posted jeavenwong
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打开zookeeper集群之后,zk正常,但是kafka启动之后总是会挂掉,查找logs日志里的server.log文件发现问题:
问题:A broker is already registered on the path /brokers/ids/0. This probably indicates that you either have configured a brokerid that is already in use, or else you have shutdown this broker and restarted it faster than the zookeeper timeout so it appears to be re-registering.
这可能是之前机器因为卡死或物理重启,kafka broker没有正常下线,zk上还保留着它的broker id。所以直接删除zk上的brokerid就可以了。
具体解决步骤如下:
1、进入zookeeper的客户端
[admin@hadoop102 zookeeper-3.4.10]$ bin/zkCli.sh
2、进入客户端以后查看注册信息
[zk: localhost:2181(CONNECTED) 2] ls /
3、进入brokers查看ids的信息
[zk: localhost:2181(CONNECTED) 10] ls /brokers/ids
4、删除这些注册信息就ok
[zk: localhost:2181(CONNECTED) 11] delete /brokers/ids
5、在开启kafka,就没问题了。
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