实时计算 Flink版scala dataset 的相关内容

文章 2022-08-22 来自：开发者社区

Flink / Scala - DataSource 之 DataSet 获取数据总结

一.引言编辑数据源创建初始数据集，这里主要以 DataSet 数据源为例，例如从文件或者从 collection 中创建，后续介绍 DataStreaming 的数据源获取方法。创建数据集的机制一般抽象在 InputFormat 后面，这里有点类似 spark 的 sparkContext，Flink 的 ExecutionE...

文章 2022-08-22 来自：开发者社区

Flink / Scala - DataSet Transformations 常用转换函数详解

一.引言上一篇文章讲到了 Flink 如何获取数据生成 DataSet，这篇文章主要讨论 DataSet 后续支持的 Transform 转换函数。相较于 Spark，Flink 提供了更多的 API 和更灵活的写法与实现。编辑 Tips :下述示例均以该 env 为基础实现import org.apache.flink.api.scala.ExecutionEnvi...

文章 2022-08-22 来自：开发者社区

Flink / Scala - DataSet & DataStream Sink 输出数据详解

一.引言Flink 的数据处理主要分三步，第一步 Source 为数据源，分为 DataSet 和 DataStreaming ，后一步为 Transformation 负责处理和转换数据，针对不同的 DataSource，Transformation 可能会存在差异，最后一步是 sink 负责将结果输出。前面...

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更新时间 2024-03-02 09:23:16

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实时计算Flink版

阿里云实时计算Flink版(Alibaba Cloud Realtime Compute)，完全兼容开源的Apache Flink，比开源性能提升2～3倍，提供了完整的告警、监控、日志的解决方案、提升开发效率且无运维成本，并有社区专家提供技术支持。

立即开通

产品控制台

产品文档

实时同步

MySQL 到 Hologres

Kafka 到 Hologres

功能对比

开源Flink对比

成本优化

作业自动调优