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The metadata returned is at the partition level, but grouped together by topic for convenience and to avoid redundancy. For each partition the metadata contains the information for the leader as well as for all the replicas and the list of replicas that are currently in-sync.

Note: If "auto.create.topics.enable" is set in the broker configuration, a topic metadata request will create the topic with the default replication factor and number of partitions. 

Topic Metadata Request

TopicMetadataRequest => [TopicName]
  TopicName => string

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