Search

User Guide

User Guide

10.5
- 10.5.4
- 10.5.2
- 10.5.1
- 10.4.1
- 10.4.0
- 10.2.2 Service Pack 1
- 10.2.2
- 10.2.1

Back Next

MapR Streams Header Ports for a Source

MapR Streams Header Ports for a Source

The MapR Streams data object contains default header ports that represent metadata associated with events.

The following table lists the header ports of the MapR Streams data object when you use it as a source:

Header ports	Data type	Description
partitionId	integer	Partition ID of the data. When a MapR stream is divided into partitions, a sequential ID is assigned to each event and is unique to each event within the partition. Use the partition ID to identify the event that you want to consume from a particular partition.
key	binary	Key value associated with an event. You can group events based on the key value and then process the data.
TopicName	string	Name of the stream from which you receive events.
timestamp	date/time	Time at which an event is generated. You can accumulate streamed data into data groups and then process the data groups based on the timestamp values.

MapR Streams Data Objects

Watch

Comments

0 COMMENTS

We’d like to hear from you! Log in to comment.