Can server.properties be modified when a Kafka cluster is running?

[foo X]

Hi

  I'm wondering whether server.properties on each nodes could be changed and reloaded when cluster is running?

  

  Problem is I setup a Kafka cluster with log.retention = 7 days and replication-factor = 3. 

  But when the business grows, the default replication-factor and log.retention doesn't match our needs.  I have to change log.retention and replica-factor to reduce disk usage. 

  Using kafka-topics.sh to change topic-level config is a solution, but not good enough, because I have hundreds of topics in my Kafka cluster.

  Can I do this ? change server.properties?

   

   Thank you very much. : )

[Erik Forsberg]

I'm pretty sure you need to restart Kafka when you make changes to server.properties.

However, if you restart one kafka broker at a time, there should be no downtime for neither producers nor consumers. 

Hope that helps,

\EF

[foo X]

Thank you very much , Erik : )

在 2016年4月8日星期五 UTC+8下午8:48:26，Erik Forsberg写道：