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MBean: kafka.network:type=RequestMetrics,name=RequestSizeRequestBytes,request=<apiKey>
MBean: kafka.network:type=RequestMetrics,name=TemporaryMemorySizeTemporaryMemoryBytes,request=<apiKey>
Authentication success and failure rates
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MBean: kafka.server:type=ZooKeeperClientMetrics,name=ZooKeeperLatencyZooKeeperRequestLatencyMs
It will also be useful to see the current status of broker's connection to ZooKeeper.
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