需要减少消费者显示消息所消耗的时间

Question

我能够从Kafka主题获取消息，但是阅读消息需要花费太多时间。有没有办法减少时间消耗。而且我还需要知道我们是否只能从卡夫卡话题中得到最后的消息.....请帮助我。

import java.util.Arrays;
import java.util.Properties;

import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.apache.kafka.clients.consumer.ConsumerRecords;
import org.apache.kafka.clients.consumer.KafkaConsumer;

public class SimpleConsumer {
    public static void main(String[] args) throws Exception {
    // Kafka consumer configuration settings
    String topicName = "you";
    Properties props = new Properties();

    props.put("bootstrap.servers", "192.168.174.132:9092");
    props.put("group.id", "test");
    props.put("enable.auto.commit", "true");
    props.put("auto.commit.interval.ms", "1000");
    props.put("session.timeout.ms", "60000");
    props.put("key.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
    props.put("value.deserializer", "org.apache.kafka.common.serialization.StringDeserializer");
    props.put("auto.offset.reset", "earliest");
    @SuppressWarnings("resource")
    KafkaConsumer<String, String> consumer = new KafkaConsumer<String, String>(props);

    // Kafka Consumer subscribes list of topics here.
    consumer.subscribe(Arrays.asList(topicName));
    while (true) {
        ConsumerRecords<String, String> records = consumer.poll(100);
        for (ConsumerRecord<String, String> record : records) {
            // print the offset,key and value for the consumer records.
            System.out.printf("offset = %d, key = %s, value = %s\n", record.offset(), record.key(), record.value());
        }
    }
}
}