You want to write a Java method that returns the total bytes in per second across all Kafka brokers using JMX. Which approach is best?

hard🚀 Application Q9 of Q15

Kafka - Monitoring and Operations

AQuery all ObjectNames matching "kafka.server:type=BrokerTopicMetrics,name=BytesInPerSec" and sum their "Count" attributes

BQuery a single ObjectName "kafka.server:type=BrokerTopicMetrics,name=BytesInPerSec" and return its "Count"

CUse KafkaConsumer to read bytes from topics

DRead bytes from Kafka logs on disk

Step-by-Step Solution

Solution:

Step 1: Understand metric distribution
BytesInPerSec metrics exist per broker and topic, so multiple ObjectNames exist.
Step 2: Aggregate counts from all matching ObjectNames
Summing "Count" attributes from all matching beans gives total bytes per second.
Final Answer:
Query all ObjectNames matching "kafka.server:type=BrokerTopicMetrics,name=BytesInPerSec" and sum their "Count" attributes -> Option A
Quick Check:
Aggregate metrics from all brokers for total [OK]

Quick Trick: Sum metrics from all brokers for total value [OK]

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