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If configuration INTERNAL_TOPIC_SETUP is set to MANUAL_SETUP, the group leader will not set up internal topics during a rebalance but users need to call KafkaStreams#init() to set up the internal topics. If the internal topics do not exist during a rebalance because KafkaStreams#init() has not been called or one or more internal topics have been deleted, a MissingInternalTopicsException is thrown in each Kafka Streams client. If during a rebalance the group leader realizes that an internal topic is misconfigured, a MisconfiguredInternalTopicException is thrown in each Kafka Streams client.

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