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问答 2024-08-07 来自：开发者社区

在Flink CDC中，去掉参数，自己update，启动任务，获取到的before还是null？

在Flink CDC中，我去掉了这个参数，自己update了一条，然后启动任务，获取到的before还是null？

问答 2024-02-06 来自：开发者社区

flink cdc有没有个参数设置？我能让MySQL的update的数据插入到doris而非更改呀？

是否存在Flink CDC的参数设置，允许将MySQL的update的数据插入到doris而非更改，以便于记录历史数据变更？

问答 2021-12-03 来自：开发者社区

flink zeppelin的type参数(append/update/single)和flink的

如题，这个参数是仅仅zeppelin自身的参数，用于决定如何展示数据之类的逻辑呢？还是和flink任务也有关系。按照https://www.yuque.com/jeffzhangjianfeng/gldg8w/te2l1c#AzSOu 说法，append模式第一个结果列必须是时间，所以看起来更像是zeppelin自身的要求。我看了下append方式执行，jdbc仍然使用的upsertS...

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更新时间 2024-08-08 13:08:42

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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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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