实时计算 Flink版dataset编程的相关内容

文章 2022-05-26 来自：开发者社区

Flink入门——DataSet Api编程指南

Apache Flink 是一个兼顾高吞吐、低延迟、高性能的分布式处理框架。在实时计算崛起的今天，Flink正在飞速发展。由于性能的优势和兼顾批处理，流处理的特性，Flink可能正在颠覆整个大数据的生态。DataSet API首先要想运行Flink，我们需要下载并解压Flink的二进制包，下载地址如下：https://flink.apache.org/downloads.html我们可以选择Fl....

文章 2021-12-07 来自：开发者社区

Flink实战(四) - DataSet API编程（下）

9从压缩文件中创建DataSetFlink目前支持输入文件的透明解压缩，如果它们标有适当的文件扩展名。特别是，这意味着不需要进一步配置输入格式，并且任何FileInputFormat都支持压缩，包括自定义输入格式。压缩文件可能无法并行读取，从而影响作业可伸缩性。下表列出了当前支持的压缩方法9.1 Scala实现10 Transformation10.1 mapMap转换在DataSet的每个元....

文章 2021-12-07 来自：开发者社区

Flink实战(四) - DataSet API编程（中）

5 从集合创建DataSet5.1 Scala实现5.2 Java实现6 从文件/文件夹创建DataSet6.1 Scala实现文件文件夹Java实现7 从csv文件创建Dataset7.1 Scala实现注意忽略第一行includedFields参数使用定义一个POJO8 从递归文件夹的内容创建DataSet8.1 Scala实现

文章 2021-12-07 来自：开发者社区

Flink实战(四) - DataSet API编程（上）

1 你将学到◆ DataSet API开发概述◆ 计数器◆ DataSource◆ 分布式缓存◆ Transformation◆ Sink2 Data Set API 简介Flink中的DataSet程序是实现数据集转换（例如，过滤，映射，连接，分组）的常规程序.最初从某些Source源创建数据集（例如，通过读取文件或从本地集合创建）结果通过sink返回，接收器可以例如将数据写入（分布式）文件或....

文章 2019-07-19 来自：开发者社区

Flink实战(四) - DataSet API编程

1 你将学到 ◆ DataSet API开发概述 ◆ 计数器 ◆ DataSource ◆ 分布式缓存 ◆ Transformation ◆ Sink 2 Data Set API 简介 Flink中的DataSet程序是实现数据集转换（例如，过滤，映射，连接，分组）的常规程序. 最初从某些Source源创建数据集（例如，通过读取文件或从本地集合创建）结果通过sink返回，接收器可以例如将数据....

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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