flink-cdc中使用 select * from a left join b on a.id = b.id 这种方式是不是就是Regular JOIN的方式，还是说cdc有啥特殊处理。状态设置ttl清理了，那之后关联表的时候不会有问题吗，比如A表中的某条记录在状态中被清除了，那么B表中有新增的数...

flink sql 批处理的时候，用left join 产生了数据倾斜，一般怎么处理啊？

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更新时间 2024-01-27 12:46:52

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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