Confluent Control center shows Up but doesn't open localhost:9021

Kafka Connect
1

Basically, I downloaded Confluent 7.9 with Oracle JDK11
and configured /etc/kafka/server.properties for listeners & advertised listeners & adding Confluent_HOME env variable
then I run confluent local services start
all services are up & control center is Up too but
when I tried to test its link
curl -V http://localhost:9021 >>> connection refused & no firewall issues
I checked the logs using confluent local services control-center log, it shows Error >>> failed to start topology (io.confluent.controlcenter.application.AllControlCenter)
java.util.concurrent.TimeoutException)

Any clue for this please?

3

probably control center tries to connect to localhost
and as you’ve changed advertised listener and so on it might lead to
an error in connecting to the broker.

what did you change in server.properties?
what happens if you rollback the change?

michael

5

mmh what happens if you start without that config file?
so just:
confluent local service start?
a config should then be generated by the tool itself

7

correct, let me know what happens