实时计算 Flink版采集数据的相关内容

问答 2022-07-08 来自：开发者社区

大佬们，flink cdc采集mysql的数据写到kafka时使用AT_LEAST_ONCE语义可以

大佬们，flink cdc采集mysql的数据写到kafka时使用AT_LEAST_ONCE语义可以成功写入，但是使用EXACTLY_ONCE语义不能写入，但是程序没有报错，知道这是什么原因吗？

问答 2022-06-22 来自：开发者社区

请问flink cdc在采集数据到ｋａｆｋａ后，为什么多了这么多临时的主题

我这边生成ｋａｆｋａ主题的逻辑是ｓｅｒｐ＿表名，serp_ 还自动生成了ｓｅｒｐ＿空的主题

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更新时间 2024-08-28 08:54:45

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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

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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