1 partition
1.1 Copy mechanism
1.2 Regional Leader Election
1.3 Partition reallocation
Specific steps
Step 1: We create a cluster with three nodes (copy the installation package and change the broker.id and log.dir paths of service.properties)
From the above output, we can see that the topic heima-par has three partitions and three copies.
Step 2: Add another section to the topic heima-par
Step 3: Add another broker node
Step 4: Reallocate
Execute allocation strategy
View the progress of partition reallocation
Final effect: 4 partitions are evenly distributed to 4 nodes.
1.4 Modify the copy factor
1.5 partition allocation strategy
Theoretical concepts, understand and understand.
