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| //修改前检查
penn@ubuntu:~$ /mnt/app/kafka.1/bin/kafka-topics.sh --zookeeper 10.0.2.15:2181/kafka --describe --topic test-2
Topic:test-2 PartitionCount:2 ReplicationFactor:2 Configs:
Topic: test-2 Partition: 0 Leader: 2 Replicas: 2,1 Isr: 2,1
Topic: test-2 Partition: 1 Leader: 1 Replicas: 1,2 Isr: 1,2
//增加topic的partition
penn@ubuntu:~$ /mnt/app/kafka.1/bin/kafka-topics.sh --zookeeper 10.0.2.15:2181/kafka --alter --topic test-2 --partitions 3
WARNING: If partitions are increased for a topic that has a key, the partition logic or ordering of the messages will be affected
Adding partitions succeeded!
//修改后检查
penn@ubuntu:~$ /mnt/app/kafka.1/bin/kafka-topics.sh --zookeeper 10.0.2.15:2181/kafka --describe --topic test-2
Topic:test-2 PartitionCount:3 ReplicationFactor:2 Configs:
Topic: test-2 Partition: 0 Leader: 2 Replicas: 2,1 Isr: 2,1
Topic: test-2 Partition: 1 Leader: 1 Replicas: 1,2 Isr: 1,2
Topic: test-2 Partition: 2 Leader: 4 Replicas: 4,2 Isr: 4,2
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