Kafka broker shuts down after updating kafka.metrics.reporters

[#1]

I am running HDF Sandbox 3.0.2.0 on VirtualBox. Kafka metrics are not showing up in Ambari. I have found another topic in the community that mentioned updating the kafka.metrics.reporters (Kafka configs --> Advanced kafka-broker --> kafka.metrics.reporters property) per this article:

https://community.hortonworks.com/articles/90918/kafka-metrics-report-no-data-available.html

However, after applying this, the Kafka broker appears (via Ambari) to immediately stop. Any assistance appreciated.

[#2]

@Brent Foster What is the value configured for kafka.metrics.reporters property? Do you see any errors in broker logs?

[#3]

I have set the following:

(location is the Advanced kafka-broker section)

kafka.ganglia.metrics.reporter.enabled = false

and

kafka.metrics.reporters = org.apache.hadoop.metrics2.sink.kafka.KafkaTimelineMetricsReporter

I'm seeing the below in the server.log file for Kafka:

[2018-04-20 05:03:13,817] FATAL (kafka.Kafka$) java.lang.ClassNotFoundException: org.apache.hadoop.metrics2.sink.kafka.KafkaTimelineMetricsReporter at java.net.URLClassLoader.findClass(URLClassLoader.java:381) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:348) at kafka.utils.CoreUtils$.createObject(CoreUtils.scala:195) at kafka.metrics.KafkaMetricsReporter$anonfun$startReporters$1.apply(KafkaMetricsReporter.scala:65) at kafka.metrics.KafkaMetricsReporter$anonfun$startReporters$1.apply(KafkaMetricsReporter.scala:64) at scala.collection.IndexedSeqOptimized$class.foreach(IndexedSeqOptimized.scala:33) at scala.collection.mutable.WrappedArray.foreach(WrappedArray.scala:34) at kafka.metrics.KafkaMetricsReporter$.startReporters(KafkaMetricsReporter.scala:64) at kafka.server.KafkaServerStartable$.fromProps(KafkaServerStartable.scala:27) at kafka.Kafka$.main(Kafka.scala:58) at kafka.Kafka.main(Kafka.scala)