@Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + (this.host == null ? 0 : this.host.hashCode());
        result = prime * result + this.brokerId;
        result = prime * result + this.port;
        return result;
    }
The BrokerInfo hold basic info of an tube broker the brokerId, the broker host
and the port and so on.
inlong-tubemq/tubemq-core/src/main/java/org/apache/inlong/tubemq/corebase/cluster/BrokerInfo.java