public MySqlSourceBuilder<T> serverId(String serverId) {
        this.configFactory.serverId(serverId);
        return this;
    }
A numeric ID or a numeric ID range of this database client, The numeric ID syntax is like
'5400', the numeric ID range syntax is like '5400-5408', The numeric ID range syntax is
required when 'scan.incremental.snapshot.enabled' enabled. Every ID must be unique across all
currently-running database processes in the MySQL cluster. This connector joins the MySQL
cluster as another server (with this unique ID) so it can read the binlog. By default, a
random number is generated between 5400 and 6400, though we recommend setting an explicit
value."
inlong-sort/sort-flink/sort-flink-v1.13/sort-connectors/mysql-cdc/src/main/java/org/apache/inlong/sort/cdc/mysql/source/MySqlSourceBuilder.java