实时计算 Flink版source offset 的相关内容

阿里云文档 2024-07-31

Source变更兼容性

本文为您介绍Source变更的可兼容性和不可兼容性详情。

阿里云文档 2024-07-10

SQL变更的其他兼容性限制

本文为您介绍变更SQL除Query、Source和Sink之外的其他限制。

问答 2022-02-15 来自：开发者社区

Flink使用Kafka作为source时checkpoint成功提交offset的机制

大家好，请教一个问题，当Flink在使用Kafka作为source，并且checkpoint开启时，提交的offset是在消息被链路最后一个算子处理之后才会把这条offset提交吗？还是说这个消息只要从Kafka source读取后，不论链路处理到哪个算子， checkpoint成功时就会把它的offset提交呢？另外有大神指路这段代码具体在哪个文件吗？谢谢！ -- Best Wis...

问答 2022-02-15 来自：开发者社区

请教如何在flink job 自定义kafka source function 及时提交offset

我有这样一个业务场景，在checkpoint disable的情况下，不想用auto.commit 功能在等待interval时间后提交offsets, 想要在flink job sink 完成后及时提交offset，我阅读了一下flinkKafkaConsumer的源码，没有找到实现方式，麻烦请教大神有什么建议的实现方式吗？或者还有什么其他的建议？谢谢！附件中是我写的测试代码...

问答 2022-02-15 来自：开发者社区

关于flink sql的kafka source的开始消费offset相关问题。

如题，按照官方文档的kafka source部分，有如下配置说明。 scan.startup.mode : optionalgroup-offsetsStringStartup mode for Kafka consumer, valid values are 'earliest-offset', 'latest-offset', 'group-offsets', 'timestamp' ...

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更新时间 2024-06-29 09:25:08

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实时计算Flink版

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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