利用flink -cdc 同步阿里云上polar db的数据到hologress上，connector用的是 'connector' = 'jdbc', 'driver' = 'org.postgresql.Driver', 发现porlardb中删除数据时，没办法同步到holo里，需要配置什么来解决这个问题呢

问答 2022-06-29 来自：开发者社区

问一下,Flink CDC双流同步的时候,从表必须全部载入到内存里吗?

问答 2022-06-28 来自：开发者社区

问下 flink sql cdc. 能同步多张表然后sink到一份表中么同步的表通过 joi

问下 flink sql cdc. 能同步多张表然后sink到一份表中么同步的表通过 join关联

问答 2022-06-28 来自：开发者社区

flink cdc 同步写入kakfa，请问hadoop-3.3.2/datas/nm-local-

flink cdc 同步写入kakfa，请问hadoop-3.3.2/datas/nm-local-dir/usercache/admin/appcache/ 下文件生成太多导致磁盘快满了，请问如何清理合适？

问答 2022-06-23 来自：开发者社区

这个flink cdc可以用在做oracle到mysql的，增量同步吗

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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

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功能对比

开源Flink对比

成本优化

作业自动调优