rakfa.receiveFromSimpleConsumer: KAKFA Simple Consumer receiving messages
In shrutigupta23/rkafka: Using Apache 'Kafka' Messaging Queue Through 'R'

Description Usage Arguments Details Value Note Author(s) References Examples

This function allows the KAKFA Simple Consumer to receive messages from a particular topic. However, this doesn't display the messages. To read the messages, use the rkafka.readFromSimpleConsumer function.

1 2	rkafka.receiveFromSimpleConsumer(SimpleConsumerObj, topicName, partition, Offset, msgReadSize)

`SimpleConsumerObj`	Simple Consumer object through which messages are to be read Required:Mandatory Type:SimpleConsumer
`topicName`	Name of the topic from where to read messages Required:Mandatory Type:String
`partition`	Partition Number Required:Mandatory Type:String
`Offset`	Offset Number Required:Mandatory Type:String
`msgReadSize`	Size of the message to be read Required:Mandatory Type:String

There are two types of KAFKA consumers:High-Level and Simple. This function receives messages using the Simple Consumer. Use caution on deciding to use the Simple Consumer as it doesn't persist offset.This function needs to be run before executing the rkafka.readFromSimpleConsumer function

Nothing

Warning: Ensure to close the consumer after reading messages. Won't work correctly next time otherwise

Shruti Gupta

To know when to use simple consumer and when to use High-level Consumer, refer the url below: https://cwiki.apache.org/confluence/display/KAFKA/0.8.0+SimpleConsumer+Example

## Not run: 
consumer1=rkafka.createSimpleConsumer("172.25.1.78","9092","10000","100000","test")
rkafka.receiveFromSimpleConsumer(consumer1,"test","0","0","test-group")

## End(Not run)