迁移前：
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编辑json文件：vi topics-to-move.json
{"topics": [{"topic": "test-reassign"}],"version":1}
执行语句
bin/kafka-reassign-partitions.sh --zookeeper node1:2181,node2:2181,node3:2181 --topics-to-move-json-file topics-to-move.json --broker-list "1,2" --generate
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编辑json文件: vi expand-cluster-reassignment.json
{"version":1,"partitions":[{"topic":"test-reassign","partition":1,"replicas":[2,1],"log_dirs":["any","any"]},{"topic":"test-reassign","partition":0,"replicas":[1,2],"log_dirs":["any","any"]},{"topic":"test-reassign","partition":2,"replicas":[1,2],"log_dirs":["any","any"]}]}
执行成功：
bin/kafka-reassign-partitions.sh --zookeeper node1:2181,node2:2181,node3:2181 --reassignment-json-file expand-cluster-reassignment.json --execute
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bin/kafka-reassign-partitions.sh --zookeeper node1:2181,node2:2181,node3:2181 --reassignment-json-file expand-cluster-reassignment.json --verify
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对比：
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实际物理位置：
node1 节点没有test-reassign分区和副本 node1和node2都有
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