原文链接:https://cwiki.apache.org/confluence/display/KAFKA/Replication+tools#Replicationtools-5.AddPartitionTool
此工具能做啥?
Kafka的partition表示并发度的单元:一个topic的消息可以分布到多个partition上,并存储在多个server上。一旦创建了一个topic,就要指定这个topic的partition数。在topic的数据量增加时需要增加更多的partition,此工具帮助我们为某个指定的topic增加更多的partition,并可以手动的为增加的partition分配replica。此工具现在只在0.8分支提供。
如何使用?
bin/kafka-add-partitions.sh Option Description ------ ----------- --partition <Integer: # of partitions> REQUIRED: Number of partitions to add to the topic --replica-assignment-list For manually assigning replicas to <broker_id_for_part1_replica1 : brokers for the new partitions broker_id_for_part1_replica2, (default: ) broker_id_for_part2_replica1 : broker_id_for_part2_replica2, ...> --topic <topic> REQUIRED: The topic for which partitions need to be added. --zookeeper <urls> REQUIRED: The connection string for the zookeeper connection in the form host:port. Multiple URLS can be given to allow fail-over.