Double-click tKafkaInput to open its
Component view.
In the Broker list field, enter the locations
of the brokers of the Kafka cluster to be used, separating these locations using
comma (,). In this example, only one broker
exists and its location is localhost:9092.
From the Starting offset drop-down list,
select the starting point from which the messages of a topic are consumed. In
this scenario, select From latest, meaning to
start from the latest message that has been consumed by the same consumer group
and of which the offset has been committed.
In the Topic name field, enter the name of
the topic from which this Job consumes Twitter streams. In this scenario, the
topic is twitter_live.
This topic must exist in your Kafka system. For further information about how
to create a Kafka topic, see the documentation from Apache Kafka or use the
tKafkaCreateTopic component provided with the
Studio. But note that tKafkaCreateTopic is not
available to the Spark Jobs.
Select the Set number of records per second to read from
each Kafka partition check box. This limits the size of each micro
batch to be sent for processing.
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