Major Description
A topic-partition "adn-tracking,15" in kafka who's earliest offset is 1255644602 and latest offset is 1271253441.
while starting a spark streaming to process the data from the topic , we got a exception with "Got wrong record XXXX even after seeking to offset 1266921577".
I implemented a simple project to use consumer to seek offset 1266921577. But it return the offset 1266921578. Then while seek to 1266921576, it return the 1266921576 exactly。
Why ? How to fix that ?
There is the code:
public class consumerDemo {
public static void main(String[] argv)
{ Properties props = new Properties(); props.put("bootstrap.servers", "172.31.29.31:9091"); props.put("group.id", "consumer-tutorial-demo"); props.put("key.deserializer", StringDeserializer.class.getName()); props.put("value.deserializer", StringDeserializer.class.getName()); KafkaConsumer<String, String> consumer = new KafkaConsumer<String, String>(props); TopicPartition tp = new TopicPartition("adn-tracking-click", 15); Collection<TopicPartition> collection = new ArrayList<TopicPartition>(); collection.add(tp); consumer.assign(collection); consumer.seek(tp, 1266921576); ConsumerRecords<String, String> consumerRecords = consumer.poll(10000); List<ConsumerRecord<String, String>> listR = consumerRecords.records(tp); Iterator<ConsumerRecord<String, String> > iter = listR.iterator(); ConsumerRecord<String, String> record = iter.next(); System.out.println(" the next record " + record.offset() + " recode topic " + record.topic()); }}