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A new property called storage.id will get added to the meta.properties of a log directory. If the meta.properties file doesn't exist a new one will be generated with this storage idfor the cluster metadata partition the Kafka node will fail to start. If the meta.properties file exist but it doesn't contain this property a new one will be generated and the meta.properties files will be atomically replaced. The kafka-storage CLI tool will be extended to generate and write the storage id when the format command is used.

RPCs

AddVoter

Request

This RPC can be sent by an administrative client to add a voter to the set of voters. This RPC can be sent to a broker or controller. The broker will forward the request to the controller.

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