THIS IS A TEST INSTANCE. ALL YOUR CHANGES WILL BE LOST!!!!
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The controller will also snapshot less frequently when too many members of the quorum have fallen behind. Specifically, if losing a node would probably impact availability, we will use a separate set of configurations for determining when to snapshot.
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Broker Registration and State Management
Broker Heartbeats
Every distributed system needs a way of managing cluster membership. Prior to KIP-500, Kafka brokers registered ephemeral znodes in order to register themselves as part of the cluster. The Kafka controller passively consumed the registration information from Zookeeper.
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