[英]How to publish Spring Kafka DLQ in 2.5.4 version
需要您的幫助和指導。
我在當前項目中使用的是 2.2.X 版本的 spring-kafka。
我創建的錯誤處理如下所示:
@Bean("kafkaConsumer")
public ConcurrentKafkaListenerContainerFactory<String, Map<String, Object>> eventKafkaConsumer() {
ConcurrentKafkaListenerContainerFactory<String, Map<String, Object>> factory = new ConcurrentKafkaListenerContainerFactory<>();
factory.setErrorHandler(new SeekToCurrentErrorHandler(createDeadLetterPublishingRecoverer(), 3));
return factory;
}
public DeadLetterPublishingRecoverer createDeadLetterPublishingRecoverer() {
return new DeadLetterPublishingRecoverer(getEventKafkaTemplate(),
(record, ex) -> new TopicPartition("topic-undelivered", -1));
}
然后我將我所有的項目依賴版本,例如 spring-boot 和 spring-kafka 升級到最新版本: 2.5.4 RELEASE
我發現其中一些方法已被棄用和更改。
SeekToCurrentErrorHandler errorHandler =
new SeekToCurrentErrorHandler((record, exception) -> {
// recover after 3 failures, woth no back off - e.g. send to a dead-letter topic
}, new FixedBackOff(0L, 2L));
我的問題是,如何使用這些配置生成 DLQ:
已編輯
@Bean("kafkaConsumer")
public ConcurrentKafkaListenerContainerFactory<String, Map<String, Object>> kafkaConsumer() {
ConcurrentKafkaListenerContainerFactory<String, Map<String, Object>> factory = new ConcurrentKafkaListenerContainerFactory<>();
factory.setConsumerFactory(consumerFactory());
factory.setConcurrency(consumerConcurrencyCount);
factory.setErrorHandler(errorHandler());
return factory;
}
public SeekToCurrentErrorHandler errorHandler() {
return new SeekToCurrentErrorHandler(
deadLetterPublishingRecoverer(),
new FixedBackOff(0L, 2L)
);
}
public DeadLetterPublishingRecoverer deadLetterPublishingRecoverer() {
return new DeadLetterPublishingRecoverer(
getEventKafkaTemplate(),
(record, ex) -> {
if (ex.getCause() instanceof BusinessException || ex.getCause() instanceof TechnicalException) {
return new TopicPartition("topic-undelivered", -1);
}
return new TopicPartition("topic-fail", -1);
});
}
public KafkaOperations<String, Object> getEventKafkaTemplate() { // producer to DLQ
return new KafkaTemplate<>(new DefaultKafkaProducerFactory<>(producerConfigs()));
}
感謝 Gary,此配置有效!
提前致謝
不清楚你的意思是什么
問題是,在文檔中,它仍在使用舊方法,該方法已被 2.5.X 版本棄用
KafkaOperations
是KafkaTemplate
實現的接口; 您需要做的唯一更改是將maxAttempts
更改為BackOff
...
@Bean("kafkaConsumer")
public ConcurrentKafkaListenerContainerFactory<String, Map<String, Object>> eventKafkaConsumer() {
ConcurrentKafkaListenerContainerFactory<String, Map<String, Object>> factory = new ConcurrentKafkaListenerContainerFactory<>();
factory.setErrorHandler(new SeekToCurrentErrorHandler(createDeadLetterPublishingRecoverer(), new FixedBackOff(0, 2L));
return factory;
}
public DeadLetterPublishingRecoverer createDeadLetterPublishingRecoverer() {
return new DeadLetterPublishingRecoverer(getEventKafkaTemplate(),
(record, ex) -> new TopicPartition("topic-undelivered", -1));
}
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.