I run Kafka server on A computer successfully.
However, I run Kafka consumer on B computer, the command and result as follows:
command:
bin/kafka-console-consumer.sh --bootstrap-server 192.168.78.131:9092 --topic test
192.168.78.131 is A server
results:
[2018-04-17 22:31:55,373] WARN [Consumer clientId=consumer-1, groupId=console-consumer-47514] Connection to node -1 could not be established. Broker may not be available. (org.apache.kafka.clients.NetworkClient)[2018-04-17 22:31:55,430] WARN [Consumer clientId=consumer-1, groupId=console-consumer-47514] Connection to node -1 could not be established. Broker may not be available. (org.apache.kafka.clients.NetworkClient)[2018-04-17 22:31:55,549] WARN [Consumer clientId=consumer-1, groupId=console-consumer-47514] Connection to node -1 could not be established. Broker may not be available. (org.apache.kafka.clients.NetworkClient)[2018-04-17 22:31:55,755] WARN [Consumer clientId=consumer-1, groupId=console-consumer-47514] Connection to node -1 could not be established. Broker may not be available. (org.apache.kafka.clients.NetworkClient)[2018-04-17 22:31:56,221] WARN [Consumer clientId=consumer-1, groupId=console-consumer-47514] Connection to node -1 could not be established. Broker may not be available. (org.apache.kafka.clients.NetworkClient)
by the way, in A server the own consumer use localhost or 127.0.0.1 to connect Kafka server works but use IP doesn't work too. What's wrong with these? thanks sincerely.