在Flink中，Regular Join（包括Left Join）的结果顺序是由Flink的分区策略和数据的分布方式共同决定的。如果你的数据在并行流中有不同的分区策略或者分布方式，那么可能会导致结果的顺序不一致。例如，如果你的两个输入流的分区策略不同，或者其中一个输入流的数据分布不均匀，那么可能会...

问答 2023-10-18 来自：开发者社区

有没有碰到过实时计算Flink版regular join使用left join后，输出的数据乱序？

请问下各位，有没有碰到过实时计算 Flink版 regular join使用left join后，输出的数据乱序?我这个是单并行度

问答 2023-10-10 来自：开发者社区

Flink CDC难道是join的数据不匹配，一方算的太慢了？

Flink CDC中mysql -> mysql 先groupby然后join，groupby的结果列，大部分没有数据，只有一两条有，可能是啥原因？standalone运行join结果看样子没有问题，yarn就出现这个情况。难道是join的数据不匹配，一方算的太慢了？

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更新时间 2024-07-30 08:58:57

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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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MySQL 到 Hologres

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功能对比

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作业自动调优