How to monitor kafka using metricbeat?

Elastic Stack Beats
3 
                     enabled the module kafka                          
                /etc/metricbeat/modules.d/kafka.yml

# Module: kafka
# Docs: https://www.elastic.co/guide/en/beats/metricbeat/main/metricbeat-module-kafka.html

# Kafka metrics collected using the Kafka protocol
- module: kafka
  metricsets:
    - partition
    - consumergroup
  period: 10s
  hosts: ["4.4.4.4:9092"]

  #client_id: metricbeat
  #retries: 3
  #backoff: 250ms

  # List of Topics to query metadata for. If empty, all topics will be queried.
  #topics: []

  # Optional SSL. By default is off.
  # List of root certificates for HTTPS server verifications
  #ssl.certificate_authorities: ["/etc/pki/root/ca.pem"]

  # Certificate for SSL client authentication
  #ssl.certificate: "/etc/pki/client/cert.pem"

  # Client Certificate Key
  #ssl.key: "/etc/pki/client/cert.key"

  # Client Certificate Passphrase (in case your Client Certificate Key is encrypted)
  #ssl.key_passphrase: "yourKeyPassphrase"

  # SASL authentication
  #username: ""
  #password: ""

  # SASL authentication mechanism used. Can be one of PLAIN, SCRAM-SHA-256 or SCRAM-SHA-512.
  # Defaults to PLAIN when `username` and `password` are configured.
  #sasl.mechanism: ''

# Metrics collected from a Kafka broker using Jolokia
#- module: kafka
#  metricsets:
#    - broker
#  period: 10s
#  hosts: ["localhost:8779"]

# Metrics collected from a Java Kafka consumer using Jolokia
#- module: kafka
#  metricsets:
#    - consumer
#  period: 10s
#  hosts: ["localhost:8774"]

# Metrics collected from a Java Kafka producer using Jolokia
#- module: kafka
#  metricsets:
#    - producer
#  period: 10s
#  hosts: ["localhost:8775"]