kafka doubt

kafka Configure listeners

# The address the socket server listens on. It will get the value returned from
# java.net.InetAddress.getCanonicalHostName() if not configured.
#   FORMAT:
#     listeners = listener_name://host_name:port
#   EXAMPLE:
#     listeners = PLAINTEXT://your.host.name:9092
#listeners=PLAINTEXT://:9092

kafka configuration advertised

# Hostname and port the broker will advertise to producers and consumers. If not set,
# it uses the value for "listeners" if configured.  Otherwise, it will use the value
# returned from java.net.InetAddress.getCanonicalHostName().
#advertised.listeners=PLAINTEXT://your.host.name:9092

 

The following demonstrates the phenomenon:

The first case:

The default configuration is not

zookeeper View kafka Address:

 

kafka create topic

 

 

 

 

 Add Host hosts normally access

192.168.11.103 xuliang-PC

 

 The second case

Configuring listeners = PLAINTEXT: //192.168.11.103: 9092

The default advertised.listeners also 192.168.11.103:9092

 

 At this point access through: bin / kafka-topics.sh --list --bootstrap-server 192.168.11.103:9092

The third case:

Configuration is as follows:

 

 

 

Fourth case:

Configuration is as follows:

 

 

 

 Listen Address:

 

 

 to sum up:

 

listeners

Kafka is real bind address

 

advertised.listeners

Is exposed to external listeners, if not set, will use listeners