Kafka系列：分区迁移步骤

目录

准备迁移的topic

生成分区策略json

执行分区

查看进度

最佳实践

---

准备迁移的topic

比如迁移topicA、topicB

vim topics-to-move.json

{"topics": [{"topic": "topicA"},
            {"topic": "topicB"}],
"version":1
}

生成分区策略json

--broker-list "1,2,3,4,5" ,即所有当前可用broker id

bin/kafka-reassign-partitions.sh --zookeeper zk1:2181 --topics-to-move-json-file topics-to-move.json --broker-list "1,2,3,4,5" --generate > result.json

结果json写入result.json中

#当前分区情况
Current partition replica assignment
{"version":1,"partitions":[{"topic":"topicA","partition":2,"replicas":[0,2]},
{"topic":"topicA","part