## **2. Prerequisites**

- Install Hortonworks Distribution using this [guide.](https://docs.hortonworks.com/HDPDocuments/Ambari-2.7.1.0/bk_ambari-installation/content/ch_Installing_Ambari.html)
  - [Setup Ambari](https://docs.hortonworks.com/HDPDocuments/Ambari-2.7.1.0/bk_ambari-installation/content/set_up_the_ambari_server.html) which automatically sets up YARN

pkg crypto/x509/pkix, method (RDNSequence) String() string
pkg database/sql, func OpenDB(driver.Connector) *DB
pkg database/sql/driver, type Connector interface { Connect, Driver }
pkg database/sql/driver, type Connector interface, Connect(context.Context) (Conn, error)
pkg database/sql/driver, type Connector interface, Driver() Driver
pkg database/sql/driver, type DriverContext interface { OpenConnector }

### Create an Engine { #create-an-engine }

A SQLModel `engine` (underneath it's actually a SQLAlchemy `engine`) is what **holds the connections** to the database.

You would have **one single `engine` object** for all your code to connect to the same database.

{* ../../docs_src/sql_databases/tutorial001_an_py310.py ln[14:18] hl[14:15,17:18] *}

}

var (
	// globalServerConfig server config.
	globalServerConfig   config.Config
	globalServerConfigMu sync.RWMutex
)

func validateSubSysConfig(ctx context.Context, s config.Config, subSys string, objAPI ObjectLayer) error {
	switch subSys {
	case config.SiteSubSys:

pkg math/rand, method (*Rand) Read([]uint8) (int, error)
pkg net, type DNSError struct, IsTemporary bool
pkg net, type Dialer struct, Cancel <-chan struct
pkg net/http, const MethodConnect = "CONNECT"
pkg net/http, const MethodConnect ideal-string
pkg net/http, const MethodDelete = "DELETE"
pkg net/http, const MethodDelete ideal-string
pkg net/http, const MethodGet = "GET"
pkg net/http, const MethodGet ideal-string

    /** SMB2 session setup command */
    protected static final short SMB2_SESSION_SETUP = 0x01;
    /** SMB2 logoff command */
    protected static final short SMB2_LOGOFF = 0x02;
    /** SMB2 tree connect command */
    protected static final short SMB2_TREE_CONNECT = 0x0003;
    /** SMB2 tree disconnect command */
    protected static final short SMB2_TREE_DISCONNECT = 0x0004;
    /** SMB2 create/open file command */

Auf diese Weise erhalten Sie Benachrichtigungen (per E-Mail), wenn es ein neues Release (eine neue Version) von **FastAPI** mit Bugfixes und neuen Funktionen gibt.

## Mit dem Autor vernetzen { #connect-with-the-author }

Sie können sich mit <a href="https://tiangolo.com" class="external-link" target="_blank">mir (Sebastián Ramírez / `tiangolo`)</a>, dem Autor, vernetzen.

Sie können:

      assertThat(headersToList(builder)).containsExactly("Content-Length: 0")
    }
  }

  @Test
  fun setStatusControlsWholeStatusLine() {
    val builder = MockResponse.Builder().status("HTTP/1.1 202 That'll do pig")
    assertThat(headersToList(builder)).containsExactly("Content-Length: 0")
    assertThat(builder.status).isEqualTo("HTTP/1.1 202 That'll do pig")
  }

  @Test

        }

        @Test
        @DisplayName("Should decode response from bytes correctly")
        void testReadBytesWireFormat() throws Exception {
            // Given - Prepare a valid SMB2 Tree Connect Response buffer
            byte[] buffer = new byte[16];
            // Structure size (16)
            buffer[0] = 0x10;
            buffer[1] = 0x00;
            // Share type (DISK)

  private var writerTask: Task? = null

  /** Null until this web socket is connected. Only accessed by the reader thread. */
  private var reader: WebSocketReader? = null

  // All mutable web socket state is guarded by this.

  /** Null until this web socket is connected. Note that messages may be enqueued before that. */
  private var writer: WebSocketWriter? = null