THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
...
ListTopicCommand is an excellent tool that provides an overview of all the topic partitions in the cluster. For each topic partition, it displays the leader, assigned replicas and current "in-sync" replica set. If the leader and the first replica in the assigned replica set are the same then the Preferred replica leader election" tool succeeded. If not, the tool failed and may have to be run again.
3. ListTopicCommand Tool
What does the tool do?
This tool lists the information for a given list of topics. If no topics are provided in the command line, the tool queries zookeeper to get all the topics and lists the information for them. The fields that the tool displays are - topic name, partition, leader, replicas, isr. Two optional arguments can be provided to the tool.
If "under-replicated-partitions" is specified, the tool only provides information for those topic / partitions which have replicas that are under replicated. If "unavailable-partitions" is specified, the tool only provides information for those topic/partitions whose leader is not available.