WebJan 24, 2024 · org.apache.flink.api.common.InvalidProgramException: The implementation of the MapFunction is not serializable. The implementation accesses fields of its enclosing class, which is a common reason for non-serializability. A common solution is to make the function a proper (non-inner) class, or a static inner class.
java—MapFunction的实现不是可序列化的Flink -- RunException
WebApr 8, 2024 · 一、Scala代码. 1.自定义反序列化类:. import org.apache.flink.api.common.typeinfo. {TypeHint, TypeInformation} import org.apache.flink.streaming.connectors.kafka.KafkaDeserializationSchema import org.apache.kafka.clients.consumer.ConsumerRecord class … WebData Types & Serialization # Apache Flink handles data types and serialization in a unique way, containing its own type descriptors, generic type extraction, and type serialization framework. This document describes the concepts and the rationale behind them. Supported Data Types # Flink places some restrictions on the type of elements that can be in a … include was not declared in this scope
Flink的数据类型和序列化 - 简书
WebJul 9, 2024 · Flink ⾃身不会序列化泛型,⽽是借助Kryo进⾏序列化. 另外 POJO 类也主要着重注意下其格式,否则它不会被flink⾃⼰序列化,⽽是使⽤ kryo 进⾏序列化。. 那就有点惨了。. 因为 POJO 类可以⽀持复杂类型的创建。. POJO 类型的规则 在满⾜如下条件时,Flink会将这种数据 ... WebAug 31, 2024 · 大多数情况下,用户不用担心flink的序列化框架,flink可以自己推断出数据的类型信息,不能推断的则采用kryo或者其他方式序列化. 类型推断->自带的类型系统来处 … Web至此,Avro简单学习入门以及在Flink中的使用样例以及相应的源码剖析已经完毕,整个过程中,学习了很多东西,比如说,Avro 类型到Flink Row类型的转换细节与思想、通过TableFatory工厂类生成具体类的灵活思想等等。 include webpack