HI,
Good morning.
I am new to Kafka. So, please bear with me.
I am using the new Producer and Consumer API with Kafka 0.9.0.1
running on Windows 7 laptop with zookeeper.
I was able to send messages using the new Producer API. I can
see the messages in the Kafka data directory.
However, when I run the consumer, it does not retrieve the
messages. It keeps waiting for the messages indefinitely.
My code (taken from Javadoc and modified) is as below:
props.put("bootstrap.servers", "localhost:9092");
props.put("group.id", "new01");
props.put("enable.auto.commit", "true");
props.put("auto.commit.interval.ms", "1000");
props.put("session.timeout.ms", "30000");
props.put("key.deserializer",
"org.apache.kafka.common.serialization.StringDeserializer");
props.put("value.deserializer",
"org.apache.kafka.common.serialization.StringDeserializer");
KafkaConsumer<String, String> consumer = new KafkaConsumer<>(props);
consumer.subscribe(Arrays.asList("new-producer"));
while (true) {
ConsumerRecords<String, String> records = consumer.poll(100);
for (ConsumerRecord<String, String> record : records)
System.out.printf("offset = %d, key = %s, value = %s",
record.offset(), record.key(), record.value());
}
Can anybody please tell me what went wrong?
Thanks & Regards,
M. Lohith Samaga
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