Kafka producer to read data files

Question

I am trying to load a data file in loop(to check stats) instead of standard input in Kafka. After downloading Kafka, I performed the following steps:

Started zookeeper:

bin/zookeeper-server-start.sh config/zookeeper.properties

Started Server:

bin/kafka-server-start.sh config/server.properties

Created a topic named "test":

bin/kafka-topics.sh --create --zookeeper localhost:2181 --replication-factor 1 --partitions 1 --topic test

Ran the Producer:

bin/kafka-console-producer.sh --broker-list localhost:9092 --topic test 
Test1
Test2

Listened by the Consumer:

bin/kafka-console-consumer.sh --zookeeper localhost:2181 --topic test --from-beginning
Test1
Test2

Instead of Standard input, I want to pass a data file to the Producer which can be seen directly by the Consumer. Or is there any kafka producer instead of console consumer using which I can read data files. Any help would really be appreciated. Thanks!

Answer 1

You can read data file via cat and pipeline it to kafka-console-producer.sh.

cat ${datafile} | ${kafka_home}/bin/kafka-console-producer.sh --broker-list ${brokerlist} --topic test 

Answer 2

If there is always a single file, you can just use tail command and then pipeline it to kafka console producer.

But if a new file will be created when some conditions met, you may need use apache.commons.io.monitor to monitor new file created, then repeat above.