【Kafka】KafkaTopic命令

1. topic命令

查看集群中所有的topic
[root@hcss-ecs-2ff4 kafka]# kafka-topics.sh --bootstrap-server  101.42.49.137:9092,139.9.133.30:9092,114.116.254.124:9092 --list

# 创建一个topic
一个节点创建其他节点也有
[root@VM-8-7-centos kafka]# kafka-topics.sh --bootstrap-server 101.42.49.137:9092 --create --partitions 1 --replication-factor 3 --topic firstCreated topic first.

--topic 定义topic名
--replication-factor  定义副本数
--partitions  定义分区数

# 所有的topic
[root@VM-8-7-centos kafka]# kafka-topics.sh --bootstrap-server  101.42.49.137:9092  --list
first

# 查看topic详情
[root@VM-8-7-centos kafka]# kafka-topics.sh --bootstrap-server  101.42.49.137:9092  --topic first --describe
Topic: first    TopicId: ltOmufBjSBqgfI5sWtlcSw PartitionCount: 1       ReplicationFactor: 3    Configs: segment.bytes=1073741824
        Topic: first    Partition: 0    Leader: 2       Replicas: 2,1,0 Isr: 2,1,0

# 修改 分区变成3个
[root@VM-8-7-centos kafka]# kafka-topics.sh --bootstrap-server  101.42.49.137:9092  --topic first --alter --partitions 3
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[root@VM-8-7-centos kafka]# kafka-console-producer.sh --bootstrap-server 101.42.49.137:9092 --topic first
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// TODO https://www.bilibili.com/video/BV1vr4y1677k?p=9&spm_id_from=pageDriver&vd_source=240d9002f7c7e3da63cd9a975639409a