org.apache.kafka.common.errors.ProducerFencedException: Producer attempted an operation with an old

Kafka事务id重复

报错信息:
org.apache.flink.streaming.connectors.kafka.FlinkKafkaException: Failed to send data to Kafka: Producer attempted an operation with an old epoch. Either there is a newer producer with the same transactionalId, or the producer's transaction has been expired by the broker.
    at org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer.checkErroneous(FlinkKafkaProducer.java:1002)
    at org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer.invoke(FlinkKafkaProducer.java:619)
    at org.apache.flink.streaming.connectors.kafka.FlinkKafkaProducer.invoke(FlinkKafkaProducer.java:97)
    at org.apache.flink.streaming.api.functions.sink.TwoPhaseCommitSinkFunction.invoke(TwoPhaseCommitSinkFunction.java:228)
    at org.apache.flink.streaming.api.operators.StreamSink.processElement(StreamSink.java:56)
    at org.apache.flink.streaming.runtime.io.StreamInputProcessor.processInput(StreamInputProcessor.java:202)
    at org.apache.flink.streaming.runtime.tasks.OneInputStreamTask.run(OneInputStreamTask.java:105)
    at org.apache.flink.streaming.runtime.tasks.StreamTask.invoke(StreamTask.java:300)
    at org.apache.flink.runtime.taskmanager.Task.run(Task.java:711)
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.kafka.common.errors.ProducerFencedException: Producer attempted an operation with an old epoch. Either there is a newer producer with the same transactionalId, or the producer's transaction has been expired by the broker.

解决方案:
1.flink 1.12.0以下版本都有的漏洞。需将版本升级到1.14以上版本
2.有以下两项措施：

1. 在getKafkaProducer增加以下配置：
        //checkpoint 间隔时间     properties.setProperty(ProducerConfig.TRANSACTION_TIMEOUT_CONFIG, 1000 * 60 * 3 + "")
       properties.setProperty(ProducerConfig.MAX_IN_FLIGHT_REQUESTS_PER_CONNECTION, "1")
       properties.setProperty(ProducerConfig.ENABLE_IDEMPOTENCE_CONFIG, "true")
2. 在addSink时追加name()与uid()
   resultDataStream.addSink(new QWJHYOracleSink2()).name("传入Oracle").uid(UUID.randomUUID().toString());