1.自行修改server.properties中broker id后造成与meta.properties中数据不匹配
kafka.common.InconsistentBrokerIdException: Configured broker.id 2 doesn’t match stored broker.id 1 in meta.properties. If you moved your data, make sure your configured broker.id matches. If you intend to create a new broker, you should remove all data in your data directories (log.dirs).
2.__consumer_offsets这个topic是由kafka自动创建的，默认49个，这个topic是不能被删除的！
Error while executing topic command : Topic __consumer_offsets is a kafka internal topic and is not allowed to be marked for deletion.
为什么这里会是这样存储__consumer_offsets的呢：
- [1.] 将所有 N Broker 和待分配的 i 个 Partition 排序
- [2.] 将第 i 个 Partition 分配到第(i mod n)个 Broker 上
3.删除topic时
Topic frist is already marked for deletion.
彻底删除topic：
- [1. ] 删除Topic，delete.topic.enable=true这里要设置为true
- [2. ] 删除log日志
- [3. ] 删除ZK中的Topic记录
当然，这里是你delete.topic.enable设置为false时Zookeeper下才会有这个节点
~持续更新！