presto-hive/src/main/java/io/prestosql/plugin/hive/HiveConfig.java/HiveConfig/setSplitLoaderConcurrency
class HiveConfig:    @Config("hive.split-loader-concurrency")
    public HiveConfig setSplitLoaderConcurrency(int splitLoaderConcurrency)
    {
        this.splitLoaderConcurrency = splitLoaderConcurrency;
        return this;
    }