kafka如何修改复制factor

本文介绍如何使用Kafka Manager及Kafka自带工具调整已创建主题的复制因子(RF)。通过编辑自定义的JSON文件并使用kafka-reassign-partitions.sh脚本执行变更,可以轻松增加现有分区的复制因子。

How do I change RF using Kafka manager

I think it's possible to increase the replication for a topic after creation

https://cwiki.apache.org/confluence/display/KAFKA/Replication+tools
https://kafka.apache.org/081/ops.html

Increasing the replication factor of an existing partition is easy. Just specify the extra replicas in the custom reassignment json file and use it with the --execute option to increase the replication factor of the specified partitions.


There is a tool called kafkat. helped me figure out some problem with my kafka configuration. It allows for changes to RF after topic creation using scripts provided by kafka itself.


Running the following will make the changes, as well as giving you the old assignment json incase you need to rollback.

./kafka-reassign-partitions.sh --zookeeper 127.0.0.1 --reassignment-json-file /tmp/increase-rf.json --execute

转自:https://github.com/yahoo/kafka-manager/issues/224
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