When run second consumer, the docker port changed automaticlly and previous consumer/producer disconnected

[wolfwell5]

After run up one producer, one consumer, everything is OK, **but when I run second consumer(sometimes run the third consumer**, the port of local machine changed automatily. then producer or consumer will disconnected... Not very familiar with docker/kafka, so don't know why this happen. Hope hear your sound, thx in advanced

[OneCricketeer]

If ports are changing on the same service, then it's crashing and you'll need to look at the server logs...

One solution - Don't use 3 Kafka brokers locally with plain port exposure. Main reason - you're "wasting" disk space/cycles if you have replication factor more than 1; you can use one broker with a static port.

Or, you need to edit the listeners on the three services such that their ports don't overlap, then statically assign them to your host