Error information:
Discovered coordinator DESKTOP-NRTTBDM:9092 (id: 2147483647 rack: null) for group itstyle.
reason:
The host of Kafka running on windows is the machine name, not the IP address
So it will lead to error reporting
Desktop-nrttbdm is the host name of the server where the Kafka instance is located
and 9092 is the port of Kafka, that is, the connection address of Kafka.
Solution
Modify the hosts file directly
The windows hosts file is located in
C:\Windows\System32\drivers\etc\hosts
Open it with administrator’s permission and append the corresponding relationship between IP and host name
Add the
172.18.0.52 DESKTOP-NRTTBDM
Restart the service again
Problem solved!