HI,
flink 还是报以下错误：
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
代码如下：
Properties prop = new Properties();
prop.setProperty("bootstrap.servers", KAFKA_ADDR);
prop.setProperty("acks", "all");
//设置producer 幂等性 保证producer 数据写入到broker 不重复
prop.setProperty("enable.idempotence", "true");
// 设置FlinkKafkaProducer里面的事务超时时间，默认broker的最大事务超时时间为15分钟
prop.setProperty("transaction.timeout.ms", transaction + "");
prop.put(ProducerConfig.TRANSACTIONAL_ID_CONFIG,"my_tx_id");
prop.put(ProducerConfig.ENABLE_IDEMPOTENCE_CONFIG,true);
FlinkKafkaProducer<String> kafkaSink = new FlinkKafkaProducer<>(
WRITE_TOPIC,
serializationSchema,
prop,
FlinkKafkaProducer.Semantic.EXACTLY_ONCE);
At 2022-03-07 10:06:45, "潘明文" <panmin...@163.com> wrote:
目前出现下错误：
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
在 2022-01-21 15:15:51，"潘明文" <panmin...@163.com> 写道：
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>HI ,
> 好的，我准备测试以下，目前flink 版本是FLINK-1.12.4,kafka-connector
> flink-connector-kafka_2.11
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>在 2022-01-21 14:36:06，"selves_nan" <selves_...@163.com> 写道：
>>Hi，这个事务id自己指定即可，如果指定了之后还是报错，方便给下用到的flink和kafka-connector版本吗，目前在使用的版本没有看到相关的api
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>>selves_nan
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>>selves_...@163.com
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>>签名由网易邮箱大师定制
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>>在2022年01月21日 13:00，潘明文<panmin...@163.com> 写道：
>>HI,
>>"生产者的事务id" 怎么获取呀？
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>>在 2022-01-21 10:41:37，"selves_nan" <selves_...@163.com> 写道：
>>Hi，我觉得应该是prop缺失了kafka事务型生产者的一些配置项导致的，可以尝试一下加入下面的配置项。
>>prop.put(ProducerConfig.TRANSACTIONAL_ID_CONFIG,"生产者的事务id");
>>//开启幂等性
>>prop.put(ProducerConfig.ENABLE_IDEMPOTENCE_CONFIG,true);
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>>| |
>>selves_nan
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>>selves_...@163.com
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>>签名由网易邮箱大师定制
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>>在2022年01月20日 14:39，潘明文<panmin...@163.com> 写道：
>>hi，
>>我创建FlinkKafkaProducer 是，运行时有时出现以下错误，不知道啥原因。
>>
>>FlinkKafkaProducer<String> kafkaSink = new FlinkKafkaProducer<>(WRITE_TOPIC,
>>new KeyedSerializationSchemaWrapper<String>(new SimpleStringSchema()), prop,
>>FlinkKafkaProducer.Semantic.EXACTLY_ONCE);
>>
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>>org.apache.kafka.common.KafkaException: Unhandled error in EndTxnResponse:
>>The producer attempted to use a producer id which is not currently assigned
>>to its transactional id.
>>at
>>org.apache.kafka.clients.producer.internals.TransactionManager$EndTxnHandler.handleResponse(TransactionManager.java:1362)
>>at
>>org.apache.kafka.clients.producer.internals.TransactionManager$TxnRequestHandler.onComplete(TransactionManager.java:1074)
>>at org.apache.kafka.clients.ClientResponse.onComplete(ClientResponse.java:109)
>>at
>>org.apache.kafka.clients.NetworkClient.completeResponses(NetworkClient.java:569)
>>at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:561)
>>at
>>org.apache.kafka.clients.producer.internals.Sender.maybeSendAndPollTransactionalRequest(Sender.java:425)
>>at org.apache.kafka.clients.producer.internals.Sender.runOnce(Sender.java:311)
>>at org.apache.kafka.clients.producer.internals.Sender.run(Sender.java:244)
>>at java.lang.Thread.run(Thread.java:748)
>>Suppressed: java.lang.NullPointerException
>>
