我正在用SpringKafka(1.3.2.release)、ApacheAvro(1.8.2)和io.confluent的模式注册表(3.1.2)开发SpringBoot服务器。因此,即使kafka侦听器收到kafka消息,它也会在消息中找到schema id,并按id从注册表服务器获取avro架构。问题是,如果scheme registry config服务器关闭,我的侦听器在收到消息时会不断尝试向注册表服务器发送http请求以获取avro模式(同时打印大量错误日志),并且它会阻止所有下一个kafka消息,因为偏移量不会继续移动。
16:56:41.541 ERROR KafkaMessageListenerContainer$ListenerConsumer - - org.springframework.kafka.KafkaListenerEndpointContainer#0-0-C-1 - Container exception
org.apache.kafka.common.errors.SerializationException: Error deserializing key/value for partition trade-0 at offset 810845
Caused by: org.apache.kafka.common.errors.SerializationException: Error deserializing Avro message for id 21
Caused by: java.net.ConnectException: Connection refused (Connection refused)
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
at java.net.Socket.connect(Socket.java:589)
at java.net.Socket.connect(Socket.java:538)
at sun.net.NetworkClient.doConnect(NetworkClient.java:180)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
at sun.net.www.http.HttpClient.New(HttpClient.java:339)
at sun.net.www.http.HttpClient.New(HttpClient.java:357)
at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1202)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1138)
at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1032)
at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:966)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1546)
at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1474)
at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
at io.confluent.kafka.schemaregistry.client.rest.RestService.sendHttpRequest(RestService.java:153)
at io.confluent.kafka.schemaregistry.client.rest.RestService.httpRequest(RestService.java:187)
at io.confluent.kafka.schemaregistry.client.rest.RestService.getId(RestService.java:323)
at io.confluent.kafka.schemaregistry.client.rest.RestService.getId(RestService.java:316)
at io.confluent.kafka.schemaregistry.client.CachedSchemaRegistryClient.getSchemaByIdFromRegistry(CachedSchemaRegistryClient.java:63)
at io.confluent.kafka.schemaregistry.client.CachedSchemaRegistryClient.getBySubjectAndID(CachedSchemaRegistryClient.java:118)
at io.confluent.kafka.serializers.AbstractKafkaAvroDeserializer.deserialize(AbstractKafkaAvroDeserializer.java:121)
at io.confluent.kafka.serializers.AbstractKafkaAvroDeserializer.deserialize(AbstractKafkaAvroDeserializer.java:92)
at io.confluent.kafka.serializers.KafkaAvroDeserializer.deserialize(KafkaAvroDeserializer.java:54)
at org.apache.kafka.common.serialization.ExtendedDeserializer$Wrapper.deserialize(ExtendedDeserializer.java:65)
at org.apache.kafka.common.serialization.ExtendedDeserializer$Wrapper.deserialize(ExtendedDeserializer.java:55)
at org.apache.kafka.clients.consumer.internals.Fetcher.parseRecord(Fetcher.java:918)
at org.apache.kafka.clients.consumer.internals.Fetcher.access$2600(Fetcher.java:93)
at org.apache.kafka.clients.consumer.internals.Fetcher$PartitionRecords.fetchRecords(Fetcher.java:1095)
at org.apache.kafka.clients.consumer.internals.Fetcher$PartitionRecords.access$1200(Fetcher.java:944)
at org.apache.kafka.clients.consumer.internals.Fetcher.fetchRecords(Fetcher.java:567)
at org.apache.kafka.clients.consumer.internals.Fetcher.fetchedRecords(Fetcher.java:528)
at org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1086)
at org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1043)
at org.springframework.kafka.listener.KafkaMessageListenerContainer$ListenerConsumer.run(KafkaMessageListenerContainer.java:614)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.lang.Thread.run(Thread.java:748)
我曾尝试使用retrytemplate设置最大尝试次数,但没有成功,似乎retrytemplate只能在我的listener方法中工作。另外,我在io confluent的网站上也没有找到任何有用的配置。
1条答案
按热度按时间6qfn3psc1#
现在,我使用customavrodeserializer替换kafkaavrodeserializer,它扩展了kafkaavrodeserializer,并通过向其内容添加try-catch覆盖其反序列化方法,如下所示: