KafkaStream时间戳问题CreateTime = -1引起的程序中断

Exception in thread "app-8835188a-e0a0-46da-ac2a-6820ec197628-StreamThread-1" org.apache.kafka.streams.errors.StreamsException: Input record ConsumerRecord(topic = raw_103, partition = 1, offset = 7032668, CreateTime = -1, serialized key size = -1, serialized value size = 111, headers = RecordHeaders(headers = [], isReadOnly = false), key = null, value = { "key1": [ 103, "4113471085724846255", "--", "2018-04-17 21:33:53" ], "key2": [ [ 213309, "--", 20128, 1 ] ] }) has invalid (negative) timestamp. Possibly because a pre-0.10 producer client was used to write this record to Kafka without embedding a timestamp, or because the input topic was created before upgrading the Kafka cluster to 0.10+. Use a different TimestampExtractor to process this data.
        at org.apache.kafka.streams.processor.FailOnInvalidTimestamp.onInvalidTimestamp(FailOnInvalidTimestamp.java:73)
        at org.apache.kafka.streams.processor.ExtractRecordMetadataTimestamp.extract(ExtractRecordMetadataTimestamp.java:61)
        at org.apache.kafka.streams.processor.FailOnInvalidTimestamp.extract(FailOnInvalidTimestamp.java:48)
        at org.apache.kafka.streams.processor.internals.RecordQueue.addRawRecords(RecordQueue.java:98)
        at org.apache.kafka.streams.processor.internals.PartitionGroup.addRawRecords(PartitionGroup.java:117)
        at org.apache.kafka.streams.processor.internals.StreamTask.addRecords(StreamTask.java:560)
        at org.apache.kafka.streams.processor.internals.StreamThread.addRecordsToTasks(StreamThread.java:896)
        at org.apache.kafka.streams.processor.internals.StreamThread.runOnce(StreamThread.java:797)
        at org.apache.kafka.streams.processor.internals.StreamThread.runLoop(StreamThread.java:750)
        at org.apache.kafka.streams.processor.internals.StreamThread.run(StreamThread.java:720)

之前直接改了源码。后来从度娘中找到解决方法：

新增时间异常捕获类MyEventTimeExtractor.class, 直接返回0

import org.apache.kafka.clients.consumer.ConsumerRecord;
import org.apache.kafka.streams.processor.TimestampExtractor;

public class MyEventTimeExtractor implements TimestampExtractor{
	@Override
	public long extract(ConsumerRecord<Object, Object> record,
			long previousTimestamp) {
		return 0;
	}
}

然后在属性添加下面配置：

props.put(StreamsConfig.DEFAULT_TIMESTAMP_EXTRACTOR_CLASS_CONFIG, MyEventTimeExtractor.class);

编译执行，ok