What's New in Apache Kafka

Learn about the new features of Apache Kafka in Cloudera Runtime 7.2.11.

New performance related health tests for Kafka

Two new health tests based on the kafka_request_handler_avg_idle_1min_rate and the kafka_network_processor_avg_idle metrics are added for Kafka in Cloudera Manager. The health tests added are the following the following:
  • Request Handler Capacity

    This health test checks the most recent value of the kafka_request_handler_avg_idle_1min_rate metric and sends a warning if less than 30% of request handler capacity is available. Additionally, the warning recommends that users increase the number of I/O threads using the Number of I/O Threads (num.io.threads) property.

  • Network Processor Capacity

    This health test checks the most recent value of the kafka_network_processor_avg_idle metric and sends a warning if less than 30% of network processor capacity is available. Additionally, the warning recommends that users increase the number of network threads using the Number of Network Threads (num.network.threads) property.

For more information, see Cloudera Manager Health Tests Reference.