问题一：Flink sql 主动使数据延时一段时间有什么方案我们有这样一个场景，双流join，一个快流，一个慢流，想让快流等一段时间，目的是能提高join的命中率。 FLink sql有什么方案实现吗？参考回答：我们也遇到过类似场景。如果你的数据里面有事件时间，可以写个udf来判断下，如果事件时间-当前时间小于某个阈值，可以s...

问答 2023-08-08 来自：开发者社区

咨询一下Flink，滚动窗口1小时，每小时都有一条数据，为什么窗口触发延时了8小时呢？这个怎么排查呢

咨询一下Flink，滚动窗口1小时，每小时都有一条数据，为什么窗口触发延时了8小时呢？这个怎么排查呢？

问答 2022-12-20 来自：开发者社区

Flink sql 主动使数据延时一段时间有什么方案

我们有这样一个场景，双流join，一个快流，一个慢流，想让快流等一段时间，目的是能提高join的命中率。 FLink sql有什么方案实现吗？*来自志愿者整理的flink邮件归档

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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。

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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