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com.nvidia.spark.rapids.shuffle

ServerConnection

trait ServerConnection extends AnyRef

A server-side interface to the transport.

The RapidsShuffleServer uses a ServerConnection to start the management port in the transport (in order to allow for incoming connections)

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  1. abstract def registerRequestHandler(messageType: MessageType.Value, cb: TransactionCallback): Unit

    Registers a callback that will be called any type a MessageType message is received by this ServerConnection

    Registers a callback that will be called any type a MessageType message is received by this ServerConnection

    messageType

    see MessageType enum

    cb

    triggered for a success or error on this request

  2. abstract def send(peerExecutorId: Long, messageType: MessageType.Value, header: Long, buffer: MemoryBuffer, cb: TransactionCallback): Transaction

    Send a message using a MemoryBuffer (data)

    Send a message using a MemoryBuffer (data)

    peerExecutorId

    peer's executor id to target

    messageType

    type of message (likely Buffer)

    header

    - a long that should match a request header, requester use this header to disambiguate messages

    buffer

    an MemoryBuffer for a buffer to send

    cb

    callback to trigger once done

    returns

    the Transaction, which can be used to block wait for this send.

  3. abstract def send(peerExecutorId: Long, messageType: MessageType.Value, header: Long, response: ByteBuffer, cb: TransactionCallback): Transaction

    Send a message using a ByteBuffer (for metadata)

    Send a message using a ByteBuffer (for metadata)

    peerExecutorId

    - executor to send response to

    messageType

    - type of message (likely MetadataResponse or TransferResponse)

    header

    - a long that should match a request header, requester use this header to disambiguate messages

    response

    - a direct ByteBuffer to be transmitted

    cb

    callback to trigger once this respond completes

    returns

    a Transaction that can be used to block while this transaction is not done

  4. abstract def startManagementPort(host: String): Int

    Starts a management port, bound to host, on an ephemeral port (returned)

    Starts a management port, bound to host, on an ephemeral port (returned)

    host

    host to bind to

    returns

    integer ephemeral port that was bound

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