exactly once语义实时计算 Flink版的相关内容

阿里云文档 2026-04-09

重大语义变更

Blink作业迁移到Flink全托管后，Flink对部分Blink函数进行了重新定义和修改，这些变化将对您的业务产生影响。本文为您介绍Flink在Blink的基础上发生的重大的语义变更详情。

文章 2023-02-09 来自：开发者社区

三、【计算】Exactly Once 语义在Flink中的实现（下） | 青训营笔记

引言学习的最大理由是想摆脱平庸，早一天就多一份人生的精彩；迟一天就多一天平庸的困扰。热爱写作，愿意让自己成为更好的人............铭记于心✨我唯一知道的，便是我一无所知✨三、端到端 Exactly-Once 实现1 名词解析Two-phase commit protocol: 两阶段提交协议Transaction: 一系列保证原子性操作的集合，即操作同时执行或者都不执行Kafka....

文章 2023-02-05 来自：开发者社区

Exactly Once 语义在 Flink 中的实现｜青训营笔记

课程资料课程链接：https://live.juejin.cn/4354/yc_Once课程PPT：https://bytedance.feishu.cn/file/boxcnFPburXr95rMNel1SHOvISg学员手册：https://juejin.cn/post/7122754431371706404#heading-36完整手册：https://bytedance.feishu.c....

文章 2022-09-14 来自：开发者社区

Exactly Once语义在Flink中的实现

数据流和动态表传统的SQL：处理的表是有界的执行查询可以访问完整的数据批处理查询产生固定大小结果后终止流处理：流是一个无限元组序列执行查询无法访问所有数据查询不断更新结果，永不终止数据流和动态表转换如下不同数据处理保证的语义✔At-most-once:出现故障的时候，啥也不做。数据处理不保证任何语义，处理时延迟低。✔At-least-once:保证每条数据均至少...

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更新时间 2024-02-13 09:16:40

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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