The broker will actually unregister itself from zookeeper. The brokers id path uses ephemeral nodes so they are automatically destroyed on shutdown. In fact if you use a "Controlled Shutdown" migrating the replicas and leaders should happen for you as well. Though, manual reassignment may be preferred in your case.
Here is some extra information on controlled shutdowns: http://kafka.apache.org/documentation.html#basic_ops_restarting Thanks, Grant On Thu, Jul 30, 2015 at 4:37 PM, Andrew Otto <ao...@wikimedia.org> wrote: > I’m sure this has been asked before, but I can’t seem to find the answer. > > I’m planning a Kafka cluster expansion and upgrade to 0.8.2.1. In doing > so, I will be decommissioning a broker. I plan to remove this broker fully > from the cluster, and then reinstall it and use it for a different purpose. > > I understand how to use the reassign-partitions tool to generate new > partition assignments and to move partitions around so that the target > broker no longer has any active replicas. Once that is done, is there > anything special that needs to happen? I can shutdown the broker, but as > far as I know that broker will still be registered in Zookeeper. Should I > just delete the znode for that broker once it has been shut down? > > Thanks! > -Andrew Otto > > -- Grant Henke Software Engineer | Cloudera gr...@cloudera.com | twitter.com/gchenke | linkedin.com/in/granthenke
