实时计算 Flink版watermark如何解决的相关内容

文章 2024-02-25 来自：开发者社区

Flink报错问题之使用Watermark报错如何解决

问题一：flink keyedState 能不能存储泛型或抽象类型下面的业务逻辑 robot 传感器上报的信息，先按 robotId keyBy，之后要遍历很多的规则。每个规则存储一个之前的对象，实现如下： private transient MapState<String, robotData> state; for (Entry<String, IChar...

问答 2021-12-07 来自：开发者社区

大家好，请教一个问题我有一条进行 session window 的 sql。这条 sql 消费较少数据量的 topic 的时候，是可以生成 watermark。消费大量的数据的时候，就无法生成watermark。一直是 No Watermark。暂时找不到排查问题的思路。 Flink 版本号是 1.10，kafka 中消息是有时间的，其他的任务是可以拿到这个时间生成watermark。同.....

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更新时间 2024-02-26 03:00:08

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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