presto-raptor-legacy/src/main/java/io/prestosql/plugin/raptor/legacy/storage/BucketBalancer.java/BucketBalancer/BucketBalancer
class BucketBalancer:    @Inject
    public BucketBalancer(
            NodeManager nodeManager,
            NodeSupplier nodeSupplier,
            ShardManager shardManager,
            BucketBalancerConfig config,
            BackupService backupService,
            RaptorConnectorId connectorId)
    {
        this(nodeSupplier,
                shardManager,
                config.isBalancerEnabled(),
                config.getBalancerInterval(),
                backupService.isBackupAvailable(),
                nodeManager.getCurrentNode().isCoordinator(),
                connectorId.toString());
    }