presto-main/src/main/java/io/prestosql/execution/QueryManagerConfig.java/QueryManagerConfig/setMaxConcurrentQueries
class QueryManagerConfig:    @Deprecated
    @Config("query.max-concurrent-queries")
    public QueryManagerConfig setMaxConcurrentQueries(int maxConcurrentQueries)
    {
        this.maxConcurrentQueries = maxConcurrentQueries;
        return this;
    }