实时计算 Flink版null-阿里云

flink写入kafaka-upsert的记录，如果是删除的记录，写入看到是null.我想自己写代？问题1:flink写入kafaka-upsert的记录，如果是删除的记录，写入看到是null.我想自己写代码消费kafka的数据，识别不出删除了哪条记录这个得怎么搞呢？那我的场景是得自己消费kafka的数据，根据消息，通过业务系统的api去增加、删除数据等同步操作？问题2:打日志是做标记？但是数...

兄弟Flink CDC 这种问题有遇到过吗，没有'__op'这个字段，还会报这个字段为null 兄弟Flink CDC 这种问题有遇到过吗，没有'__op'这个字段，还会报这个字段为null

用 PolarDB-X+Flink 搭建实时数据大屏

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大数据知识图谱系列—基于ELK+Flink日志全观测最佳实践

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基于Flink的实时大数据应用Demo

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请教一下大佬们，Flink CDC中 -U[466, null, null, null, 6, nu 请教一下大佬们，Flink CDC中 -U[466, null, null, null, 6, null, 1, null, 0.00, 5, 2023-04-23T16:59:46.764] +U[466, null, null, null, 6, null, 1, null, 0.00, 6, ...

问下大佬们就是flink upsert kafka sink 删除数据的时候是只能收到null值吗？ 问下大佬们就是flink upsert kafka sink 删除数据的时候是只能收到null值吗，那这种的话我这边如何判断是删除了哪条数据呢？

Flink CDC mysql 字段 Default 默认值这个在binlog是 null吧？ Flink CDC mysql 字段 Default 默认值这个在binlog是 null吧？

flink sql从tidb读取大表时超过一定列读出数据为Null,请问这个是什么问题怎么解决下？ flink sql从tidb读取大表时超过一定列读出数据为Null,目前观测下来表的列超过一定数量后,多余的列读取的值变成Null,请问这个是什么问题怎么解决下

Flink CDC里，有同学遇到过读出来全是null吗？ Flink CDC里，有同学遇到过读出来全是null吗？ oracle cdc，oracle 是12c

Flink CDC里，有同学遇到过读出来全是null吗？ Flink CDC里，有同学遇到过读出来全是null吗？

Flink返回指定数据流的最后1条非NULL函数 Flink返回指定数据流的最后1条非NULL函数

大佬们，flink写parquet文件时，javaBean中有null值导致报错，咋解决的呢 大佬们，flink写parquet文件时，javaBean中有null值导致报错，咋解决的呢

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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