What is the rebalance latency and status in Kafka Streams metrics?

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Rebalance latency is the time taken by a Kafka Streams application to complete a rebalance operation. Rebalance is the process of redistributing partitions among the available instances of a Kafka Streams application to achieve a balanced load. The rebalance latency metric measures the time taken by the application to complete this process.

The status metric indicates the current state of the Kafka Streams instance. It can have several values such as CREATED, RUNNING, REBALANCING, ERROR, and NOT_RUNNING.

The Kafka Streams metrics provide valuable insights into the performance of your application and help you optimize it for better efficiency and throughput.