问题一：FlinkCDC 支不支持从从库归档日志捕获数据，还是只能在主库上捕获？ Flink CDC应用系统在Oracle 上开启了主从同步，从库也开启了归档日志，FlinkCDC 支不支持从从库归档日志捕获数据，还是只能在主库上捕获？参考回答： Flink CDC支持从从库归档日志捕获数据。当同步Oracle数据库时，根据归档日志的保留时间配置，F...

问答 2024-04-29 来自：开发者社区

Flink日志里面显示也读到oracle表数据量了，但是就是没有数据，有哪位帮忙解惑下嘛？

"Flink日志里面显示也读到oracle表数据量了，但是就是没有数据，我sink使用的print连接器，没有print出数据来。我更新使用了flinkcdc 3.0.1的jar包后就同步不到了。"

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更新时间 2024-12-12 13:44:40

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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