3.4.2.1 Message: Start

Topic Version1Published10/31/2016
For StandardETP v1.1

Start the protocol. Includes parameters to throttle size and rate of messages. Note that use of these parameters may cause real-time data to be lost.

Message Type ID: 0

Correlation Id Usage: n/a

Multi-part: False

Sent by: consumer

Attribute

Description

Data Type

Min

Max

maxMessageRate

Do not send two channel messages within a smaller window than this value (in milliseconds).

int

1

1

maxDataItems

Do not send more than this number of data points in a single message.

int

1

1

Avro Source

{

      "type": "record",

      "namespace": "Energistics.Protocol.ChannelStreaming",

      "name": "Start",

      "messageType": "0",

      "protocol": "1",

      "senderRole": "consumer",

      "protocolRoles": "producer,consumer",

      "fields":

     [

         { "name": "maxMessageRate", "type": "int" },

         { "name": "maxDataItems", "type": "int" }

     ]

}